February 2013 Edition - Land Transport Authority

February 2013 Edition - Land Transport Authority
PARTICULAR SPECIFICATION
APPENDIX B
SAFETY, HEALTH AND ENVIRONMENT
(February 2013 Edition)
February 2013 Edition
PS-B-i
PARTICULAR SPECIFICATION
APPENDIX B
SAFETY, HEALTH AND ENVIRONMENT
CONTENTS
Clause
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
Title
Page PS-B-
Legal Requirements
Factory Registration
SHE Management System (SHEMS)
Responsibility
Safety Enforcement
Monthly SHE Report
Safety, Health & Environmental (SHE) Personnel
Safety & Health Supervisor
Method Statement
Permit to Work (PTW)
Safety Training
SHE Coordination Meeting
SHE Committee
Tool Box Meetings
Engineer’s Project Safety Committee
Accidents & Incidents Reporting
In-House SHE Rules and Regulations
Personal Protective Equipment (PPE)
SHE Promotion
Evaluation, Selection and Control of Sub-Contractors
SHE Inspection
Maintenance Regimes For All Construction Plant, Equipment and
Tools
Hazardous Substances and Chemicals
Hand protection programme
Monthly Environmental, Safety and Security (ESS) Assessment
Contractor Senior Management’s Safety, Health and
Environmental (SHE) Commitment Presentation
Safety and Health Audit
Temporary Electrical Installations at the Site
Storage License for Petroleum and Flammable Materials
Welding and Cutting
Emergency Preparedness
Fire Safety Plan
Work in Confined Spaces
Illumination
Welfare Provisions
1
1
1
1
2
2
2
3
4
4
4
5
5
6
6
6
7
7
7
8
9
9
10
10
11
11
12
12
13
14
15
15
16
17
17
February 2013 Edition
PS-B-ii
PARTICULAR SPECIFICATION
APPENDIX B
SAFETY, HEALTH AND ENVIRONMENT
CONTENTS
Clause
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
Title
Page PS-B-
First Aid Provisions
Ladders
Scaffolds
General Safety
Safety (Anti-fall) Net
Barricade / cover to voids, Trench, Bored holes and Open edges
of Structure
5S Housekeeping method
Behavourial based safety (BBS)
CCTV
Traffic Control and Road Safety
Working In Defined Areas
Annexes
18
18
19
19
20
20
21
21
22
23
23
24
February 2013 Edition
PS-B-iii
PARTICULAR SPECIFICATION
APPENDIX B
SAFETY, HEALTH AND ENVIRONMENT
CONTENTS
Attachment
Title
Page PS-B-
A-1a
Accident Occurrence Report Form
25
A-1b
Incident Occurrence Report Form Site Safety
Supervisors
31
A-2
Contractor’s Monthly Safety, Health& Environment
(SHE) Report
36
A-3
Risk Assessment Guidelines
41
A-4
Method Statement Submission Requirements
46
A-5
ESS Assessment Form on Contractors
48
A-6
Carbon Assets Inventory Form
109
A-7
Air Pollution Control Plan
110
A-8
Vector Control Plan
112
A-9
Noise Management Plan
114
A-10
Earth Control Measures Plan
119
Annex
Title
Page PS-B-
A-a
Lifting Operations
56
A-b
Site Transport
64
A-c
Site Security
70
A-d
Civil Engineering/Deep Excavations
78
A-e
Temporary Housing Quarters
83
A-f
Environmental Considerations
84
A-g
Biodiversity
122
A-h
Flooding
123
A-i
Marine Works
125
A-j
Contaminated Ground
131
A-k
D&B Rail Projects Civil Design Safety Submissions
135
A-l
Build Only Rail Projects Civil Design Safety
Submissions
148
D&B Road Projects Civil Design Safety Submissions
158
A-m
February 2013 Edition
PS-B-iv
PARTICULAR SPECIFICATION
APPENDIX B
SAFETY, HEALTH AND ENVIRONMENT
CONTENTS
Attachment
Title
Page PS-B-
A-n
Build Only Road Projects Civil Design Safety
Submissions
171
A-o
Protection of Slab Openings
181
A-p
Photographs highlighting good SHE practices
186
A-q
Good Housekeeping Photographs
222
February 2013 Edition
PS-B-1
PARTICULAR SPECIFICATION
APPENDIX B
SAFETY, HEALTH AND ENVIRONMENT
1.
LEGAL REQUIREMENTS
1.1.
The Contractor shall comply with all applicable legislative safety, health
and environmental (SHE) requirements of Singapore including any new
acts and regulations which may be gazetted during the Contract period
including any amendments or re-enactments thereto.
1.2.
The Contractor shall comply with all the SHE requirements contained
in this specification and supporting documentation, even where these
impose a higher standard than that required by current Singapore
legislation.
2.
FACTORY REGISTRATION
2.1
Upon award of the Contract, the Contractor shall register their works as
a Factory. A copy of the licence shall be submitted to the Engineer.
3.
SHE MANAGEMENT SYSTEM (SHEMS)
3.1.
Within 12 weeks of award of the Contract, the Contractor shall submit
a SHEMS in accordance to “SS CP79, Code of Practice for Safety
Management System for the construction worksites”, and where
applicable in compliance with ISO 14001 and OHSAS 18001 for his
acceptance. The SHEMS shall incorporate all relevant legal and
contractual requirements.
4.
RESPONSIBILITY
4.1.
The Contractor shall be responsible for the SHE of all operations in
connection with the Contract and shall take all necessary actions to
ensure the safety of all persons who may be on or adjacent to the Site.
4.2.
The Contractor shall be responsible for ensuring that his subcontractors; Interfacing Contractors; and all persons entitled to be on
the Site comply with all relevant legal and contractual requirements
including the Contractor’s SHEMS and shall enforce its compliance.
February 2013 Edition
PS-B-2
4.3.
If the Contractor is working within the site (factory) of an Interfacing
Contractor, the Contractor shall comply with the Interfacing
Contractor’s SHEMS.
5.
SAFETY ENFORCEMENT
5.1.
The Engineer may require the removal from the Site of any person who
fails to observe safety procedures and that person shall not be again
deployed on any of the Authority’s projects without the written approval
of the Engineer.
6.
MONTHLY SHE REPORT
6.1.
The Contractor shall prepare a monthly SHE report in the format stated
in Attachment A-2 and submit to the Engineer within 5 days after the
month completion.
7.
SAFETY, HEALTH & ENVIRONMENTAL (SHE) PERSONNEL
7.1.
SHE personnel refer to Workplace Safety and Health Officer (WSHO)
registered with the Ministry of Manpower (MOM) and Environmental
Control Officer (ECO) registered with the National Environment Agency
(NEA).
7.2.
All SHE personnel in clause 7.1 shall have at least three (3) years post
registration and practical experience relevant to the scope of works of
the Contract.
7.3.
Prior to his appointment, the Contractor shall submit the SHE
personnel’s resume with detailed listing of his past experiences for the
Engineer’s approval. Upon the Engineer’s approval, application for the
appointment shall be made to MOM or NEA and submitted to the
Engineer.
7.4.
The Engineer shall require the replacement of the appointed SHE
personnel if the performance of the SHE personnel is not up to the
Engineer’s expectation.
7.5.
All SHE personnel shall be identified clearly on site with a blue safety
helmet.
7.6.
The SHE personnel to be appointed on site shall comply with the value
stated in the table below:
February 2013 Edition
PS-B-3
Contract Value
Full time SHE Personnel
Above S$1 million to S$20 million
1 WSHO cum ECO
Above S$20 million to S$50 million
1 WSHO & 1 ECO
Above S$50 million
2 WSHO & 1 ECO
7.7.
Notwithstanding clause 7.6, if deemed necessary by the Engineer, the
Contractor shall appoint additional SHE personnel to ensure adequate
SHE cover for all Contract related works.
7.8.
The Contractor shall appoint the WSHO and ECO within one (1) month
of Factory Registration and subsequent WSHO no later than three (3)
months thereafter.
7.9.
The Contractor shall provide cover for WSHO and/or ECO during their
periods of absence due to annual leave, sick leave, national service
and training etc.
8.
SAFETY & HEALTH SUPERVISOR
8.1.
The Contractor shall appoint a minimum of one full time Site Safety &
Health Supervisor for every S$10 million or part thereof the Contract
Sum subjected to a maximum of four (4) Safety & Health Supervisors
per contract to ensure effective safety supervision on site during all
working hours. Notwithstanding, if deemed necessary by the Engineer,
the Contractor shall appoint additional Safety & Health Supervisors to
ensure safety cover for all Contract related works. This may include
operating a shift system. Provision shall be made for providing cover at
weekends and during periods of absence from site in excess of one
day for annual leave, sick leave, National Service training and similar.
8.2.
Site Safety & Health Supervisor shall have at least two years of
relevant experience after gaining his/her Building Construction Safety
Supervisors (BCSS) Certificate.
8.3.
In addition every sub-contractor to the Contractor shall appoint a full
time Site Safety & Health Supervisor and every sub-sub-contractor
who employs more than 20 persons to carry out work at the Site shall
appoint a part-time Site Safety & Health Supervisor. These part time
Site Safety & Health Supervisors shall spend at least 15 hours per
week exclusively on safety supervision.
February 2013 Edition
PS-B-4
9.
METHOD STATEMENT
9.1.
The Contractor shall identify all safety critical activities and ensure that
a method statement is prepared for each activity and accepted by the
Engineer before commencement of such activities. The method
statement submission requirement is provided in Attachment A-4. Risk
Assessments conforming to the risk assessment guidelines provided in
Attachment A-3 shall be submitted with all method statements.
9.2.
The Contractor shall address all comments on the method statement
arising from the Engineer’s review. The Contractor shall fully comply
with the method statement approved by the Engineer. If there is any
intention to change the method of work, the Contractor shall seek
approval from the Engineer.
10.
PERMIT TO WORK (PTW)
10.1.
The Contractor shall implement a PTW system as required by
legislation or by the Authority.
10.2.
The PTW shall be valid only for the day or shift unless otherwise
agreed upon by the Engineer.
11.
SAFETY TRAINING
11.1.
The Contractor’s site senior management and WSHO shall attend the
one day in-house Construction Safety Management Course as directed
by the Engineer.
11.2.
The Contractor shall provide a training room capable of providing
training to at least 20 workers at a time. The training room shall be
provided with all the necessary audio and visual training facilities.
11.3.
The Contractor shall ensure that no personnel including Interfacing
Contractors work on site prior to the completion of the Contractor’s inhouse safety induction training and obtaining a security pass. The
Contractor shall ensure that training information is given in languages
understood by the trainees. In addition, the Contractor shall have a
system to clearly identify new employees and workers for their initial
thirty (30) days on site.
11.4.
The Contractor shall employ qualified operators for all the machinery to
be used on Site even if it is not required by legislation. The operators
shall possess a Skills Evaluation Certificate (SEC) from the Building
Construction Authority Academy or other approved training centre. For
February 2013 Edition
PS-B-5
machinery where there is no skilled training available in Singapore, the
Contractor shall engage the supplier of the machinery to train them
and authorise them in writing. Examples of qualified operator include,
but not limited to: Gantry Crane Operator, Excavator Operator,
Boring/Piling Operators and Welders.
11.5.
The Contractor shall ensure that all personnel and in particular new
personnel, or personnel transferred to new assignments are given
proper safety training relevant to their duties.
11.6.
The Contractor shall implement an identification system on site to
clearly identify all the qualified personnel and operators.
12.
SHE COORDINATION MEETING
12.1.
The Contractor shall conduct weekly SHE co-ordination meetings with
his sub-contractors and Interfacing Contractors to ensure that works
are carried out on Site with minimum risk to workers and to the public.
The meeting shall plan and co-ordinate all works on site including the
movement of plant, equipment & hazardous materials and also review
safe work practices, permit to work procedures, training, PPE and
incidents. The meeting shall also inform personnel of potentially
dangerous works operation at the Site.
13.
SHE COMMITTEE
13.1.
The Contractor shall establish a SHE Committee regardless of the
number of workers. The committee shall comprise management and
safety representatives from the Contractor and his sub-contractors
including any Interfacing Contractors. The Engineer's staff shall be
invited to sit in the committee on an ex-officio basis.
13.2.
The Committee shall inspect the Site at least one week before each
month’s meeting.
13.3.
The Contractor shall adopt the following format for his SHE Committee
Meeting.
a) Confirmation of Minutes;
b) Matters Arising;
c) Chairman’s review of SHE performance/ condition;
d) Report from the Secretary;
e) Report from SHE Representatives;
f) SHE Inspection Report;
February 2013 Edition
PS-B-6
g) Accidents & Incidents;
h) Reports on status of authorities visits, and discuss follow up
actions;
i) SHE Talk by Committee Members;
j) Report from the Engineer; and
k) Any Other Business.
13.4.
The Contractor shall ensure that all major decisions and actions made
at each meeting are effectively communicated for implementation.
14.
TOOL BOX MEETINGS
14.1.
Tool Box Meetings shall be conducted daily specific to the work
performed for the day before work commences. Workers shall be
briefed on the day’s activities, the SHE precautions to be observed, the
safe work practices to be followed, and each individual’s PPE will be
checked as to its suitability, and its correct use explained where
necessary.
15.
ENGINEER’S PROJECT SAFETY COMMITTEE
15.1.
The Engineer may require the Contractor’s Project Manager and SHE
personnel to attend the Engineer’s Project Safety Committee meeting
for reviewing their SHE provisions on site.
16.
ACCIDENTS & INCIDENTS REPORTING
16.1.
Notwithstanding the reporting requirements of the legislation and the
Insurance Specification, the Contractor shall notify the Engineer of any
accident, incident, dangerous occurrence or near miss associated with
this Contract. Verbal notification to the Engineer shall be done
immediately and follow up by written notification within 24 hours in the
format shown in Attachment A-1a & 1b.
16.2.
The Contractor shall propose remedial measures to prevent recurrence
of the accidents and incidents to the satisfaction of the Engineer.
16.3.
The Contractor shall submit photos, sketches and evidences related to
the incident or accident in soft and hard copies as deemed necessary
to the satisfaction of the Engineer.
February 2013 Edition
PS-B-7
17.
IN-HOUSE SHE RULES AND REGULATIONS
17.1.
The Contractor shall establish a set of in-house SHE rules and
regulations based on industry standards and legislation for the
Engineer’s acceptance. The Contractor shall display sufficient copies
of these rules and regulations on Site, translated into languages
understood by the workers.
18.
PERSONAL PROTECTIVE EQUIPMENT (PPE)
18.1.
The Contractor shall provide, maintain and enforce the usage of PPE
for all the personnel on site at all times. The following PPE shall be
compulsory on site:
a) Safety helmets with chin strap conforming to SS98 showing
the contract number;
b) Safety footwear with steel toe cap and steel sole plate
conforming to SS513;
c) High-visibility vest/clothing conforming to BS EN 471
d) Safety belts shall be provided for restraining falls or safety
harness for fall protection. Safety belts and harness shall
comply with SS528 series (Personal fall-arrest systems),
SS541 (Restraint belts) and SS570 (Personal protective
equipment for protection against falls from a height – Single
point anchor devices and flexible horizontal lifeline systems).
e) Respirators / dust masks of the appropriate standard shall be
provided for activities generating dust or fume.
18.2.
The Contractor shall maintain and update all PPE issuance records.
19.
SHE PROMOTION
19.1.
The Contractor shall develop an annual SHE promotional programme
to demonstrate his commitment to advancing the SHE culture at the
Site and reinforcing the concept that SHE and construction are
inseparable. The programme shall enhance personal SHE awareness
and influence all attitudes and behaviour of all personnel on SHE
matters. The programme shall consist of general promotional activities
which are carried out as part of a day-to-day activity and high impact
promotion activities which are carried out as a campaign to reinforce a
February 2013 Edition
PS-B-8
particular SHE point at the Site. The SHE promotional programme
shall be revised and updated at least once a year.
19.2.
The Contractor shall organise a minimum of two SHE campaigns
covering safety, health and environmental related topics for each
calendar year.
19.3.
In addition to clause 19.2, the Contractor shall conduct regular ‘Safety
Time-out’ sessions. This is to allow Contractor to take stock and
refocus on safety, review their current work activities and its associated
hazards, as well as to identify additional safety measures required to
maintain high WSH standards on the worksites. The Contractor may
conduct the ‘Safety Time-out’ sessions on a site-wide basis or to focus
on specific work activities or subcontractors at different stages of their
works. The Contractor shall submit a schedule and programme for the
‘Safety Time-out’ to the Engineer for approval.
19.4.
The Contractor shall provide, erect, maintain and finally remove when
ordered, an Accident Statistics Board (ASB) 3m x 2m in size written
boldly in English, the content of which shall include, but not limited to
the following Date, Total man hours Worked; Total lost-time Accidents;
Total fatalities; Total crane collapses; Frequency Rate; and Severity
Rate.
19.5.
The ASB shall be erected in a prominent location, preferably near the
main entrance to the Site, which shall be to the acceptance of the
Engineer. The Contractor shall be responsible for ensuring that the
statistics are updated daily to reflect the status of the SHE
performance at the Site.
20.
EVALUATION,
SELECTION
CONTRACTORS
20.1.
The Contractor shall include legislative and Authority’s site specific
SHE requirements in tender packages for their sub-contractor selection
and conduct pre-job meetings to address job SHE expectation before
awarding them.
20.2.
The Contractor shall select sub-contractors who have attained
bizSAFE level 3 certification, awarded by the Workplace Safety and
Health Council, prior to their work commencement at site. Should
there be sub-contractors who are not bizSAFE-certified, the Contractor
shall ensure that such sub-contractors be certified to bizSAFE level 3
within a 6-month period, upon informing LTA of its intention to engage
them. Notwithstanding this, the onus is on the Contractor to have all of
its sub-contractors to be bizSAFE level 3 certified as early as possible.
AND
CONTROL
OF
SUB-
February 2013 Edition
PS-B-9
20.3.
The Engineer may participate in pre-tender meetings, selection
process, pre-job meeting reviewing the SHE performances, etc.
21.
SHE INSPECTION
21.1.
The Contractor shall carry out internal SHE inspections at least once a
day or at least once per shift. In addition, informal spot checks should
be carried out more frequently on critical site activities.
21.2.
A written record shall be kept of the daily inspection findings and the
results of inspections should be brought to the line manager having
responsibility in the area concerned, together with the necessary
remedial action and due date for completion. Any corrective action
shall be immediately implemented by the line manager, and followed
up by the SHE personnel. The Contractor shall submit records of
inspection report as deemed necessary by the Engineer.
21.3.
Inspection of shoring of formwork, side supports of excavations and
trenches, cranes and scaffolds should be carried out after any episode
of inclement weather which may affect their stability / integrity.
21.4.
The Contractor’s senior site management shall participate in the
Engineer’s weekly, monthly, quarterly, and annual ad hoc safety
inspections. The Contractor shall close out the inspection findings to
the full satisfaction of the Engineer.
21.5.
The Engineer shall require the Contractor to suspend a part of the
works or the whole of the works if it is deemed to be unsafe. The
Contractor shall be required to rectify the substandard condition or
practice till the satisfaction of the Engineer. In such events, the
Contractor shall not be entitled to any claim for compensation or
Extension of Time for Completion.
21.6.
The Environmental Control Officer (ECO) shall carry out weekly
inspections and submit findings and remedial actions with photographs
to the Engineer fortnightly.
22.
MAINTENANCE REGIMES FOR ALL CONSTRUCTION PLANT,
EQUIPMENT AND TOOLS
22.1.
The Contractor shall assess the SHE risks especially in terms of age,
noise, emissions, condition, etc. associated with the plant, equipment
or tool and only those assessed with minimal SHE risks shall be
brought to the Site.
February 2013 Edition
PS-B-10
22.2.
The Engineer shall stop the plant, equipment or tool from operation or
require its removal if he finds the SHE associated risks to be high. The
Contractor shall not be entitled to any claim for compensation or
Extension of Time for Completion.
22.3.
The Contractor shall implement a preventive maintenance programme
to ensure that all plant, equipment and tools are maintained in a safe
and working order.
22.4.
The Contractor shall implement a monthly inspection program to
inspect all plant, equipment and tools. All plants, equipment and tools
that have undergone repair or maintenance shall be inspected and
checked before being returned to service. Stickers or tags shall be
displayed to indicate its approval for usage or “Not for Use”.
22.5.
The Contractor shall implement a lockout and tag-out system in
accordance with SS571, Energy Lockout and Tagout Procedure.
22.6.
Job-made or modified tools of any kind shall not be used on site.
23.
HAZARDOUS SUBSTANCES AND CHEMICALS
23.1.
The Contractor shall assess the Safety Data Sheets (SDS) of all the
hazardous substances and chemicals prior to its entry to site for its
suitability in terms of SHE hazards and consider safer alternatives.
23.2.
The Engineer may require the removal of any hazardous substance or
chemical if there are safer alternatives. In such events, the Contractor
shall not be entitled to any claim for compensation or Extension of
Time for Completion.
23.3.
The Contractor shall ensure that all hazardous substance and
chemical containers are labelled, its movement is recorded and
returned to the designated storage areas when not in use.
24.
HAND PROTECTION PROGRAMME
24.1.
The Contractor shall implement a hand protection programme subject
to the acceptance of the Engineer. The programme will:
a) Identify activities on site that can cause hand injuries;
b) Propose
safety
interventions
such
as
engineering
or
administrative measures to reduce the hazard;
c) Select, provide and maintain suitable hand protection devices
and supervise their use;
February 2013 Edition
PS-B-11
d) Review and monitor the programme to test its effectiveness.
25.
MONTHLY ENVIRONMENTAL, SAFETY AND SECURITY (ESS)
ASSESSMENT
25.1.
The Engineer will conduct a monthly ESS assessment using the form
in Attachment A -5 on the Contractor’s ESS provision.
25.2.
During the contract period, if the Contractor accumulates monthly
scores of less than 50 for 3 consecutive months; or utilities damaged
based on any of the criteria listed below, Contractor’s top management
will be called to explain the cause, provide effective action plan to
prevent recurrence and reinforce their commitment to LTA senior
management.
Type of Utility Damages
Total Number of Cases
(within any 12 month period)
Results in disruption of service
>4
exceeding $5,000 in repair costs
Results in disruption of service > 4
>3
hours, or exceed $10,000 in repair
costs
Results in disruption of service > 24
>1
hours, or exceed $100,000 in repair
costs
Total number of cases accumulated
>4
regardless of types
26.
CONTRACTOR SENIOR MANAGEMENT’S SAFETY, HEALTH AND
ENVIRONMENTAL (SHE) COMMITMENT PRESENTATION
26.1.
The Contractor’s senior management shall give a presentation on their
safety commitments to the Engineer on a six monthly basis or when
deemed necessary by the Engineer.
26.2.
The agenda for the presentation shall be as follows:
a) The proposed SHE targets, goals and strategies in achieving
them;
b) A brief review on the past safety performance with actions
taken to address the shortcomings;
February 2013 Edition
PS-B-12
c) An overview of the safety challenges over the next six (6)
months including plans and strategies devised to mitigate
these risks;
d) The SHE hazards arising from these work activities; and
e) Any other critical SHE related issues.
27.
SAFETY AND HEALTH AUDIT
27.1.
For contracts with contract sum of S$30 million and above, the
Contractor shall appoint an independent approved audit company to
audit their SHE system every six (6) months.
27.2.
The audit company engaged by the Contractor shall be accepted by
the Engineer. The audit company shall present and submit their audit
methodology including detailed resumes of their audit team and audit
checklist for the Engineer’s acceptance before commencement of any
audits. The audit company is required to give a presentation of the
audit findings to the Engineer.
27.3.
The audit report and its corrective actions shall be brought to the
attention of all sub-contractors and copied to the Engineer
27.4.
Deficiencies identified during Engineer’s insurance and internal audits
shall be corrected by the Contractor to the satisfaction of the Engineer.
28.
TEMPORARY ELECTRICAL INSTALLATIONS AT THE SITE
28.1.
The Contractor shall obtain licenses for using electrical power from
their own generating sets.
28.2.
All temporary electrical installations, equipment and tools shall be
checked and certified safe for use prior to usage on site by a full-time
Licensed Electrical Worker (LEW) and thereafter monthly and after any
repairs. The LEW shall provide a sticker on the equipment and tools
indicating the date of inspection and is safe for use.
28.3.
A current photograph of the LEW(s) and the contact number(s) shall
be displayed on the outside of all boxes containing electrical DBs for
ease of reference.
28.4.
The Contractor shall ensure that all portable electrical appliances used
above and below ground level, that are hand held tools and inspection
February 2013 Edition
PS-B-13
lamps, are rated at 110 volts AC via a step down transformer centre
tapped to earth (CTE).
28.5.
The Contractor shall ensure that all generators and welding sets in use
on Site are adequately and effectively earthed at all times during
operation.
29.
STORAGE LICENSE
MATERIALS
29.1.
If the Contractor intends to store petroleum and flammable materials
on site, he shall obtain a storage licence from SCDF and a copy of the
licence shall be submitted to the Engineer.
29.2.
The Contractor may store petrol up to a maximum volume of 5 litres on
Site provided that it is kept in a suitably constructed store which is
licensed by the Fire Safety & Shelter Department of the SCDF.
29.3.
All diesel stored on site shall be kept in drums or in bulk tanks which in
either case shall be located at a designated place away from any
sources of ignition or open drain which does not lead to an interceptor,
and shall be properly labelled. A “No Smoking” sign shall be displayed
at the storage location and a charged fire extinguisher of correct type
kept on standby.
29.4.
All bulk diesel tanks shall be properly supported in an elevated position
to facilitate gravity discharge. They shall stand within a bund
constructed to contain a volume of 110% of the volume of the tank.
There shall be no breaches in the bund wall, no material shall be
stored within the bund and rain water collecting in the bund shall be
regularly removed to prevent build-up. The inner face of the bund wall
shall be coated with a chemical resistant material. A chemical resistant
valve, which shall be closed at all times, except for releasing rainwater
into a stormwater drain via an oil intercepting system, shall be installed
at the outlet situated outside the bund, in accordance with the National
Environment Agency (NEA) Code of Practice on Pollution Control.
29.5.
All drums of diesel on Site shall be in good condition and shall be kept
closed with a lid/cap when not being used. They shall be stored on end
with the lid/cap uppermost and kept within a tray of sufficient volume to
contain the contents of the largest drum in the case of accidental
rupture, taking into account the presence of other drums within the
tray.
29.6.
Drums of diesel shall not be rolled along the ground. They shall be
transported vertically chained on a trolley; or by a forklift fitted with a
FOR
PETROLEUM
AND
FLAMMABLE
February 2013 Edition
PS-B-14
drum handling device and not standing unsupported on the forks or on
a pallet; or by crane using a safe slinging technique.
29.7.
Diesel shall be transferred from the storage drum to another container,
or to the tank of plant/machinery using a hand pump wherever
practicable and at all times a drip pan must be provided. Where the
diesel container is light enough to be lifted by one person it can be
poured out by hand, using a funnel to guide the liquid.
29.8.
Any spillages of diesel shall straight away be absorbed using sand or
other absorbent materials, which shall be disposed of as contaminated
waste. On no occasion should diesel be allowed to enter the Site
drainage system unless this is connected to an interceptor prior to the
Site waste being discharged into the public sewer system.
30.
WELDING AND CUTTING
30.1.
The Contractor shall comply with SS510, Safety in welding and cutting
(and other operation involving the use of heat).
30.2.
When cylinders are used from a pallet, then a safety distance of 6
metres shall be maintained between pallets.
30.3.
Minimum quantity of gas cylinders should be kept at work locations on
Site, and the remainder moved to the designated storage area at
ground level. Cylinders should be secured in a vertical position and
individual sets should be chained to trolleys or to a fixed support.
30.4.
The Contractor shall implement a permit to work for all hot works to
ensure that the equipment are safe from defects and no incompatible
works are carried near the hot work area.
30.5.
Liquid petroleum gas used below ground shall be subjected to the
Engineer’s approval. Propane shall be used in a compressed air
environment. Oxygen or acetylene cylinders taken underground shall
be transported back above ground at the end of each working shift and
stored in the designated storage areas.
30.6.
Workers carrying out welding shall be provided with face shields
compatible with safety helmets so that both can be worn at the same
time.
30.7.
Fire blankets shall be provided to contain sparks arising from welding
and cutting operations.
February 2013 Edition
PS-B-15
30.8.
Opaque screens shall be securely positioned around any electric arc
welding being carried out on Site to protect other workers and passing
members of the public, either on foot or as drivers or passengers in
vehicles, from the arc. Such screens shall be maintained in good
condition.
31.
EMERGENCY PREPAREDNESS
31.1.
The Contractor shall work with the SCDF to establish an emergency
preparedness plan to response effectively to emergency situations on
site. The plan shall be submitted to the Engineer for his acceptance
prior to any construction activities and updated at least on a quarterly
basis.
31.2.
In-house emergency exercises and drills shall be conducted on a
quarterly basis. Emergency table top exercises with SCDF and all
relevant agencies shall be on a half yearly basis while drills shall be at
least once a year. The timing for evacuation of workers and personnel
from their work areas shall not be more than 10 minutes.
32.
FIRE SAFETY PLAN
32.1.
The Contractor shall establish a Fire Safety Plan to ensure that the
work on site is undertaken to the highest standard of fire safety. As a
basic guide the Contractor shall address the requirements contained in
the Joint Code of Practice on the Protection from Fire of Construction
Sites and Buildings Undergoing Renovation - under the title “Fire
Prevention on Construction Sites” published by the Construction
Confederation and the Fire Protection Association of U.K. as well as
the “Technical Guidelines For Fire Safety In Temporary Buildings In
Construction Sites” issued by the SCDF.
32.2.
The plan shall be submitted to the Engineer for acceptance and shall
detail as a minimum:

the role and responsibility of every individual in the worksite on
fire safety;

general site precautions, fire detection and warning alarm
system;

fire fighting equipment including types of fire extinguishers;

fire safety measures for site accommodation;

fire escape and communication;

fire brigade access, facilities and co-ordination;
February 2013 Edition
PS-B-16

fire drills and training including the use of site fire fighting
apparatus;

material storage including flammable liquid and gas, and waste
control regime;

fire safety measures for construction plant and equipment; and

fire safety measures for electrical supply.
32.3.
The Contractor shall ensure that all procedures, precautionary
measures and safety standards stipulated in the Fire Safety Plan are
implemented, communicated and complied with by all workers
including sub-contractors and Interfacing Contractors.
32.4.
The Contractor shall review and ensure the adequacy of the Fire
Safety Plan as the Works progress.
32.5.
The Contractor shall carry out monthly checks of fire fighting
equipment and test all alarms and detection devices installed on site.
Tags/stickers shall be provided to indicate the monthly checks.
32.6.
The Contractor shall conduct weekly inspections of escape routes, fire
brigade access, fire fighting facilities and work areas to ensure that the
requirements stipulated in the Fire Safety Plan are complied with.
33.
WORK IN CONFINED SPACES
33.1.
In addition to the requirements of the Workplace Safety and Health
(Confined Spaces) Regulations and SS 568, Code of Practice for
Confined Spaces, the Contractor shall also classify manholes,
enclosed formwork, culvert drains, excavations more than 4 metres
deep, partially enclosed excavations and tunnels as confined spaces
and apply all legislative requirements of confined spaces.
33.2.
The Contractor shall have controlled access/egress points to confined
spaces to prevent unauthorised access. Where practicable the
Contractor shall ensure that there are at least two readily accessible
escape routes from each confined space.
33.3.
The Contractor shall operate a tag system for entry so that all
personnel entering the confined space can be accounted for.
33.4.
The Contractor shall ensure that there is an certified man-riding cage
capable of taking a stretcher and two persons, together with an
February 2013 Edition
PS-B-17
identified crane equipped with rescue equipment, on standby at all
times whilst work is carried out in the confined space. Where this is
not reasonably practicable a stretcher which is capable of being
brought manually out of the confined space should be located at a
convenient point.
33.5.
Gas monitoring shall be conducted by a competent confined space
assessor to certify that the confined space is safe for workers to enter
and thereafter at every four (4) hours intervals.
33.6.
In addition, the Contractor shall ensure that suitable atmospheric
monitoring devices such as anemometer and wet/dry bulb
thermometer are made available for the competent confined space
assessor to determine the air flow, ambient temperature and humidity
level within the confined space.
34.
ILLUMINATION
34.1.
The Contractor shall provide temporary general illumination with a
lighting level of not less than 100 lux for all work areas.
35.
WELFARE PROVISIONS
35.1.
Sanitary and washing facilities shall be provided in accordance with
Code of Practice on Environmental Health and the Workplace Safety &
Health Act. Toilet facilities shall be connected to a sewer/temporary
septic tank with the approval of the Sewerage Department.
35.2.
The Contractor shall provide suitable and sufficient temporary facilities
on Site which are readily accessible taking into account the number
and distribution of workers throughout all work locations.
35.3.
These facilities shall include:
a) Toilets and handwash areas;
b) A supply of clean drinking water; and
c) Sheltered rest areas, to include seating, segregated from the
worksite so that workers may safely remove helmets and
other items of PPE.
Such rest areas shall have sufficient
waste bins.
35.4.
These facilities shall be kept in a clean and serviceable condition and
be available for use during all working hours. The locations may need
to be air–conditioned if situated at bored tunnel and/or well ventilated if
at station area.
February 2013 Edition
PS-B-18
35.5.
Portable toilets shall be provided and regularly maintained at suitable
locations within every underground structure under construction.
36.
FIRST AID PROVISIONS
36.1.
An approved first aid station shall be provided and maintained at all
times. The station shall be fully equipped to treat illness and injuries
which can normally be expected to occur in work of the types required
by this Contract. Medical supplies shall be stocked in the types and
quantities recommended by the designated doctor.
36.2.
The first aid station shall be located near the main access to the Site,
readily accessible to ambulance service.
36.3.
An additional number of trained first aiders and satellite first aid boxes
or cupboards shall be provided and maintained to give effective first
aid cover to the whole worksite, including any related off-site activities.
36.4.
Where work is carried out during extended hours or on a shift system
the Contractor shall ensure that there are sufficient trained first aiders
on Site to give effective cover at all hours.
36.5.
The first aid station and the satellite first aid boxes or cupboards shall
be placed under the charge of WSHO who shall be trained in first aid
treatment, and he, or a nominated qualified deputy, shall always be
readily available during the hours where work is carried out on Site.
36.6.
Qualified first aiders shall be suitably identified with a logo of a green
cross on their safety helmets.
36.7.
In addition, an approved first aid box or cupboard, a stretcher and a
telephone for each satellite Site shall be provided and maintained so
as to be readily accessible.
37.
LADDERS
37.1.
The Contractor shall use portable aluminium ladders of industrial type
for access and low level work of short duration only.
37.2.
No vertical access ladders exceeding three (3) meters is allowed on
site.
37.3.
The Contractor shall establish a ladder inspection procedure requiring
a ladder identification method displaying company name, ladder
number, inspection frequency and inspection status.
February 2013 Edition
PS-B-19
38.
SCAFFOLDS
38.1.
The Contractor shall develop a scaffold tagging system acceptable to
the Engineer to indicate:
a) Scaffolds under construction or demolition;
b) Scaffolds that are complete but have hazards associated with
them; and
c) Scaffolds erected and safe for use.
38.2.
The Contractor shall envelope all scaffolds with screen nets to prevent
debris from falling outside the scaffold.
38.3.
Scaffold Regulations shall be applicable to the erecting and
dismantling of falseworks.
39.
GENERAL SAFETY
39.1.
The Contractor shall provide, erect, maintain and finally remove, when
instructed, Danger, Warning, Caution or Information signs, located
appropriate to the site layout. The signs shall be no less than 1.5m x
1.0m in size written boldly in the four official languages. These shall
be erected on existing footpaths and at points of access likely to be
used by the public to warn or inform them of the existence of the
Works. These notices shall be in addition to any notices required to be
put up to meet statutory requirements.
39.2.
The Contractor shall ensure that all roads, pavements and public
footpaths are kept clear of dust, silt and debris.
39.3.
Unless otherwise agreed, the Contractor shall be responsible for the
proper fencing, hoarding, lighting, guarding and watching of the Works.
The Contractor shall also provide proper temporary roadways,
footways, guards, fencing and hoardings so far as the same may be
necessary for the accommodation and protection of the owners and
occupiers of the adjacent property, the public and others for a like
period.
39.4.
All platforms, covers, ladders, stairways, staging, scaffolding and other
provisions for access erected by the Contractor shall be installed in
compliance with current legal requirements and made available for use
as early as possible during the construction period. In cases where
this is impracticable the Contractor shall provide all necessary
temporary access facilities which shall be constructed, installed and
maintained in a safe and secure manner.
February 2013 Edition
PS-B-20
39.5.
Designated walkways along walers and struts shall be levelled, flushed
without tripping hazards and with rigid guardrails and toe boards
securely provided.
39.6.
Where life lines are used, Professional Engineer is to design life lines
capable to arrest and withstand the fall of person are to be provided.
39.7.
The Contractor shall provide capping on all protruding starter
reinforcement bars with individual plastic/ rubber caps or with hose
/tube.
39.8.
The Contractor shall ensure bar chairs supporting steel reinforcement
bars shall be designed by a Professional Engineer. In his design, the
bar chair should only be welded to temporary bars incorporated to
support the bar chairs. Welding onto permanent bars will not be
permitted.
39.9.
The Contractor shall ensure that horseplay, practical jokes, scuffling,
wrestling or fighting are strictly prohibited at the Site.
39.10.
The Contractor shall ensure that the sale, keeping or consumption of
liquor and prohibited substances on Site is prohibited.
39.11.
No gambling, prostitution or other illegal or immoral activities shall be
allowed anywhere else on Site.
40.
SAFETY (ANTI-FALL) NET
40.1.
The Contractor shall provide and maintain safety net system in
compliance to SS292 to catch persons falling whilst working in any
location from where he would liable to fall. The net shall be of sufficient
size and strength to catch any person for whose protection it is to be
used and the net shall be so located to cover the area of the possible
fall.
40.2.
The Contractor shall conduct a sample test on the safety net system,
comprising the net and its supporting structures, before it is installed.
Subsequent tests shall be carried out when directed by the Engineer.
41.
BARRICADE / COVER TO VOIDS, TRENCH, BORED HOLES AND
OPEN EDGES OF STRUCTURE
41.1.
The Contractor shall barricade all excavation, bored holes, voids and
open edges of structure under construction where a workman is liable
to fall with secured and effective guardrails / barricades / floor
coverings.
February 2013 Edition
PS-B-21
41.2.
The Contractor shall provide “Danger” warning signs for barriers and
barricades erected. All floor opening covers shall be stencilled or
painted with “Danger, Do Not Remove”. For details on the protection to
floor openings refer to Annex A-o “Protection of Slab Openings”.
41.3.
Where traffic flow is to be maintained over temporary road opening or
crossing, the Contractor shall provide suitably designed chequered
steel cover / decking over it. The Contractor’s Professional Engineer
shall design and submit the cover / decking proposal to the Engineer
for acceptance prior to commencement of the excavation.
42.
5S HOUSEKEEPING METHOD
42.1
The Contractor shall implement a 5S housekeeping method approved
by the Engineer. The method shall be based on a Japanese quality
management concept based on cyclical methodology. The 5S shall
consist of Seiri (Sort/Organise), Seiton (Straighten/Orderliness), Seiso
(Sweep/Cleanliness),
Seiketsu
(Standardise)
and
Shitsuke
(Sustain/Discipline).
43.
BEHAVOURIAL BASED SAFETY (BBS)
43.1.
The Contractor shall send a site senior management staff and a
WSHO to attend the Engineer’s in-house BBS training.
43.2.
The Contractor shall implement a BBS programme based on the
training provided by the Engineer. The BBS programme shall be
approved by the Engineer before implementation.
43.3.
The BBS programme shall include:
a)
Conduct a Safety Culture Survey through questionnaires. The
Contractor shall ensure that the Safety Culture Survey is
conducted effectively and interpreters shall be appointed if
necessary;
b)
Training of management staff, site supervisory staff, workers and
the appointed observers.
c)
Assigned Observers to conduct observations of safe and unsafe
behaviours. The Observers appointed shall base on the ratio of 1
Observer to 50 workers. Each Observer shall conduct regular
observations of minimum twice a week with durations of about 20
minutes each
.
February 2013 Edition
PS-B-22
d)
Direct Observers to input observations into the Engineer’s BBS
Database System for monitoring and analysis.
e)
Organise goal setting committees chaired by senior site
management and introduce intervention strategies to correct the
unsafe behaviours for continual improvement.
f)
Submit a monthly BBS implementation progress report within 5
days after the end of each month. The report shall include
project profile, executive summary of BBS activities such as
types of critical behaviours and intervention strategies, detailed
listing of behaviours observed with the respective goals set and
statistical analysis of the behaviours supported graphs.
44.
CCTV
44.1.
The Contractor shall implement a surveillance CCTV system, with
cameras strategically positioned at high-risk areas for purpose of
monitoring site conditions and deterring unsafe work practices. The
number and location of cameras deployed shall be subjected to the
acceptance of the Engineer.
44.2.
The CCTV shall facilitate viewing of live and recorded images. Access
to viewing and controlling of all cameras shall be via a standard web
browser and/or wireless Local Area Network (LAN) by the authorized
users. All cameras shall be weatherproof and come with pan/tilt
functions, zoom lens and the ability to operate under low light
conditions.
44.3.
All camera recordings shall have camera id and location/area of
recording as well as date/time stamp which cannot be altered, ensuring
the audit trail is intact for evidential purposes. Sufficient storage (hard
disk space) shall be provided for all the camera recordings for a period
of 30 days or more @ 30 frames per second (FPS), at 4 common
intermediate format (CIF) or better quality using the necessary
compression techniques for all cameras. A backup system shall be
maintained to protect against server or storage failure.
44.4.
The storage system should allow retrieval of data instantaneously or
any date/time interval chosen through search functionality of the
application software. The system shall have the facility to export the
desired portion of clipping (from a desired date/time to another desired
date/time) onto a CD, DVD or any other device in a format which can
be replayed through standard PC based software.
February 2013 Edition
PS-B-23
45.
TRAFFIC CONTROL AND ROAD SAFETY
45.1.
The Contractor shall provide, install and maintain all necessary traffic
and directional signs, barriers, blinkers, rotating beacons, cones, lane
markings etc. in accordance with the requirements stipulated in the
Code of Practice for Traffic Control at Work Zone (latest edition) to
guide and inform the public of road works or any road lane closure.
The Contractor must observe the minimum clearance required
between the working area and the trafficked carriageway and ensure
that all plants and materials do not intrude into any area reserved for
pedestrians, cyclists or other traffic.
45.2.
The Contractor shall regularly maintain the site road surfaces to keep
them free of potholes, unevenness, etc. Mill and patch method shall be
required to repair any uneven surface defects.
46.
WORKING IN DEFINED AREAS
46.1.
Defined Area work comes into effect during the track related
installation process (TRIP) which takes place after substantive civil
work has been completed. Working in defined areas shall comply with
the issued Works Train Manual.
February 2013 Edition
PS-B-24
47.
ANNEXES
47.1.
The Contractor shall also comply with the following annexes to this
appendix.
a) Lifting Operations;
b) Site Transport;
c) Site Security;
d) Civil Engineering/Deep Excavations;
e) Temporary Housing Quarters;
f) Environmental Considerations;
g) Biodiversity;
h) Flooding;
i) Marine Works;
j) Contaminated Ground;
k) D&B Rail Projects Civil Design Safety Submissions;
l) Build Only Rail Projects Civil Design Safety Submissions;
m) D&B Road Projects Civil Design Safety Submissions;
n) Build Only Road Projects Civil Design Safety Submissions;
o) Protection of Slab Openings;
p) Photographs showing good SHE practices;
q) Good Housekeeping Photographs.
February 2013 Edition
PS-B-25
Attachment A-1a
ACCIDENT OCCURRENCE REPORT FORM
Page 1 of 6
Name of Main Contractor:
Report Ref. No :
PART A (Type of Accident)
Major Accident (MOM reportable)
Minor Accident (Non MOM Reportable)
LTA Staff Injury
Public Member Injury
PART B (Details of Accident)
PROJECT
:
EXACT LOCATION
:
CONTRACT
:
OCCURRENCE DATE :
OCCURRENCE TIME :
REPORTED DATE
REPORTED TIME
:
:
PART C (Details of Injured Person)
NAME
:
Main Contractor :
EMPLOYER ( Main Sub Contractor) :
DATE OF BIRTH :
NRIC/WORK PERMIT NO :
GENDER
:
DESIGNATION :
CITIZENSHIP
:
DATE JOINED SERVICE :
RACE
:
PREVIOUS INDUSTRY EXPERIENCE
& DESIGNATION :
MARITAL STATUS :
EMPLOYEE SENT TO :
First Aid
Home
Private Doctor
Hospital :
(hospital name)
Polyclinic :
(polyclinic name)
PART D (Lost time)
Estimated (if actual mandays lost is not available)
3 days or lesser
More than 3 days
Hospitalised more than 24 hours
Immediate return to work
First aid given only
Hospital referral
Actual
State actual no. of mandays lost :
Period of Medical Leave
REV 2
JAN 2006
February 2013 Edition
PS-B-26
Attachment A-1a
ACCIDENT OCCURRENCE REPORT FORM
Page 2 of 6
PART E (Details of Injury)
Use the following codes :
Nature of Injury
ABR
AMP
ASP
BCC
BN(C)
BN(H)
CCS
DEATH
DIS
ELECT
EYE
FG
FT
FZ
HEAT
LC
NID
NUMB
PERM
PS
PSN
PW
RDT
SKIN
SS
TOOTH
OTHER
NA
: Abrasions/scratches
: Amputation
: Asphyxia/Drowning
: Bruises/Crushing/Contusions
: Chemical Burns
: Heat Burns
: Concussion/Internal Injury
: Fatality
: Dislocation
: Effects of Electricity
: Eye Injury
: Faint/Giddy
: Fracture
: Freezing/Frostbite/Hypothermia
: Heat stress and strain
: Laceration/cut
: Noise Induced Deafness
: Numbness
: Permanent Disability
: Physical Shock
: Poisoning
: Puncture wound
: Effects of radiation
: Dermatitis/Skin disease
: Sprain/strain
: Tooth Injury
: Other Injury
: Not applicable
Nature of Injury
REV 2
Injured Bodypart
Injured Bodypart
BODY
FEET
HAND
HEAD
LOWER
TORSO
UPPER
NA
: Injury linked to entire body
: Feet/Toes
: Hand/Fingers
: Head/Face/Neck
: Lower Limbs (Legs)
: Shoulder to Groin/Hip
: Upper Limbs (Arms)
: Not Applicable
Exact description (state Left/Right bodypart)
JAN 2006
February 2013 Edition
PS-B-27
Attachment A-1a
ACCIDENT OCCURRENCE REPORT FORM
Page 3 of 6
PART F (Description of Accident)
WHAT & WHERE THE ACCIDENT HAPPENED?
HOW DID IT HAPPEN?
WHAT ARE THE CONSEQUENCES?
PLEASE ATTACH PHOTOGRAPHS AND SKETCHES
REV 2
JAN 2006
February 2013 Edition
PS-B-28
Attachment A-1a
ACCIDENT OCCURRENCE REPORT FORM
Page 4 of 6
PART G (Causes of Accident)
(1) Direct Causes (
both clauses cannot exist together)
(i) Unsafe Conditions
Absence of safety means
Dressing/apparel hazard
High temperature hazard
Inadequate guarding
Inadequate/improper PPE
Inadequate warning system
Noise hazard
Poor housekeeping
Unsound structure
No unsafe condition*
Remarks :
(ii) Unsafe Practice
Careless/reckless
Driving error
Horseplay
Improper/wrong use of bodypart
Improper/unsafe lifting/carrying
Taking improper/unsafe position or posture
Making safety devices inoperative
Operating/working at unsafe speed
Tampering with equipment in motion
Using proper equipment unsafely
Wrong working methods
No unsafe practice*
Remarks :
Root Causes (*both clauses cannot exist together)
(i) Work Factors
Lack of co-ordination/communication
Inadequate equipment being used
Inadequate/lack of supervision
Pressure from external influence
Wear and tear
No work factors *
Remarks :
REV 2
Congestion/restricted action
Environmental hazard (gas/dust/smoke)
Hazardous arrangement
Inadequate illumination
Inadequate ventilation
Improper/faulty equipment
Presence of fire/explosion hazard
Radiation hazard
Others (key details into ‘Remarks’)
Disregard instructions
Failure to secure/warn
Under influence of alcohol/drugs
Improper/unsafe use of equipment / materials
Improper use or fail to use PPE
Intentional motive
Not paying attention
Operating working without authority
Unsafe loading/mixing/placing
Using improper/unsafe equipment
Others (key details into ‘Remarks’)
Inadequate/lack of engineering
Inadequate/lack of maintenance
Inadequate/lack or work procedures
Poor selection/placement
Others (key details into ‘Remarks’)
JAN 2006
February 2013 Edition
PS-B-29
Attachment A-1a
ACCIDENT OCCURRENCE REPORT FORM
(ii) Human Factors
Foul play
Inadequate capability
Improper or lack of motivation/interest
Lack of knowledge
Lack of training
Not qualified
No human factors
Remarks :
(2) Weakness of Safety Management System
Safety policy
Safety training
Incident investigation and analysis
Safety promotion
Safety inspections
Hazard analysis
Emergency preparedness
Occupational health programs
Remarks :
Page 5 of 6
Fatigue/stress
Illness
Improper assignment of personnel
Lack of skill
Needs conflicting with safety
Unsafe attitude
Others (key details into ‘Remarks’)
Safe work practices
Group meetings
In-house safety rules and regulations
Evaluation, selection and control of SC
Maintenance regime for all machinery
Control of movement and use of
hazardous substances and materials
Not applicable
PART H (Corrective Action Taken)
REV 2
JAN 2006
February 2013 Edition
PS-B-30
Attachment A-1a
ACCIDENT OCCURRENCE REPORT FORM
Page 6 of 6
PART I (Completed By Investigating Person)
NAME
:
DESIGNATION :
COMPANY
:
TEL
:
DATE :
SIGN :
PART J (Reviewed By Contractor’s PM)
NAME
:
DESIGNATION :
COMPANY
:
TEL
:
DATE :
SIGN :
PART K (Endorsed By LTA’s SPM or senior project staff)
NAME
:
DESIGNATION :
COMPANY
:
TEL
:
REV 2
DATE :
SIGN :
JAN 2006
February 2013 Edition
PS-B-31
Attachment A-1b
LTA REF NO :
Page 1 of 5
INCIDENT OCCURRENCE REPORT FORM
Name of Main Contractor :
Report Ref. No :
PART A (Type of Incident)
Dangerous Occurrence
(MOM Reportable)
Near miss
Damage to property
Fire
Dangerous incident
Security violation
Damage to utilities
Crime
Environmental harm
Road incident
Other occurrence
PART B (Details of Incident)
PROJECT
:
EXACT LOCATION
:
CONTRACT
:
OCCURRENCE DATE :
OCCURRENCE TIME :
REPORTED DATE
REPORTED TIME
:
:
COMPANY RESPONSIBLE FOR INCIDENT :
PART C (Persons involved in the Incident)
A
NAME
B
C
:
DESIGNATION :
COMPANY
:
Status (you may tick more than one) :
Witness
Incident LTA
Reporter Personnel
Main Contractor’s
Personnel
Subcontractor’s
Personnel
Visitor
Public
Self
Others :
Employed
A
B
C
PART D (Details of Damage to Property)
Main Contractor’s property
LTA property
HDB property
Subcontractor’s property
Public property
Others :
NOT APPLICABLE
February 2013 Edition
PS-B-32
Attachment A-1b
INCIDENT OCCURRENCE REPORT FORM
Page 2 of 5
PART E (Details of Damage to Utilities)
ENV/NEA
SCV
IDA
Power Grid
Singtel
NOT APPLICABLE
PUB
Power Gas
LTA
NParks
SBA
Others :
PART F (Description of Incident)
WHAT & WHERE THE INCIDENT HAPPENED?
HOW DID IT HAPPEN?
WHAT ARE THE CONSEQUENCES?
Please attach photographs and sketches
February 2013 Edition
PS-B-33
Attachment A-1b
INCIDENT OCCURRENCE REPORT FORM
Page 3 of 5
PART G (Causes of Incident)
(3) Direct Causes
(i) Unsafe Conditions
Absence of safety means
Dressing/apparel hazard
High temperature hazard
Inadequate guarding
Inadequate/improper PPE
Inadequate warning system
Noise hazard
Poor housekeeping
Unsound structure
No Unsafe condition
Remarks :
(ii) Unsafe Practice
Careless/reckless
Driving error
Horseplay
Improper/wrong use of body part
Improper/unsafe lifting/carrying
Taking improper/unsafe position or posture
Making safety devices inoperative
Operating/working at unsafe speed
Tampering with equipment in motion
Using proper equipment unsafely
Wrong working methods
No Unsafe practice
Remarks :
(4) Root Causes
(i) Work Factors
Lack of co-ordination/communication
Inadequate equipment being used
Inadequate/lack of supervision
Pressure from external influence
Wear and tear
No work factors
Remarks :
Congestion/restricted action
Environmental hazard (gas/dust/smoke)
Hazardous arrangement
Inadequate illumination
Inadequate ventilation
Improper/faulty equipment
Presence of fire/explosion hazard
Radiation hazard
Others (key details into ‘Remarks’)
Disregard instructions
Failure to secure/warn
Under influence of alcohol/drugs
Improper/unsafe use of
equipment/materials
Improper use or fail to use PPE
Intentional motive
Not paying attention
Operating/working without Engineer
Unsafe loading/mixing/placing
Using improper/unsafe equipment
Others (key details into ‘Remarks’)
Inadequate/lack of Engineering
Inadequate/lack of maintenance
Inadequate/lack or work procedures
Poor selection/placement
Others (key details into ‘Remarks’)
February 2013 Edition
PS-B-34
Attachment A-1b
INCIDENT OCCURRENCE REPORT FORM
(ii) Human Factors
Foul play
Inadequate capability
Improper or lack of motivation/interest
Lack of knowledge
Lack of training
Not qualified
No human factors
Remarks :
(5) Weakness of Safety Management System
Safety policy
Safety training
Incident investigation and analysis
Safety promotion
Safety inspections
Hazard analysis
Emergency preparedness
Occupational health programs
Remarks :
Page 4 of 5
Fatigue/stress
Illness
Improper assignment of personnel
Lack of skill
Needs conflicting with safety
Unsafe attitude
Others (key details into ‘Remarks’)
Safe work practices
Group meetings
In-house safety rules and regulations
Evaluation, selection and control of SC
Maintenance regime for all machinery
Control of movement and use of
Hazardous substances and materials
Not applicable
PART H (Corrective Action Taken)
PART I (Follow up investigation)
Incident investigation report (completion date :
)
February 2013 Edition
PS-B-35
Attachment A-1b
INCIDENT OCCURRENCE REPORT FORM
Page 5 of 5
PART J (Completed by Investigating Person)
NAME
:
DESIGNATION :
COMPANY
:
TEL
:
DATE :
SIGN :
PART K (Reviewed By Contractor’s PM)
NAME
:
DESIGNATION :
COMPANY
:
TEL
:
DATE :
SIGN :
PART L (Endorsed By LTA’ SPM or senior project staff)
NAME
:
DESIGNATION :
COMPANY
:
TEL
:
DATE :
SIGN :
February 2013 Edition
PS-B-36
ATTACHMENT A-2
CONTRACTOR’S MONTHLY SAFETY, HEALTH & ENVIRONMENT (SHE) REPORT
The report shall follow the format given:
1. Project Profile
A brief description of the project e.g. Contract Title, Contract No., Award Date,
Completion Date etc.
2. Executive Summary
To give a brief summary of the site SHE events such as any educational,
promotional and enforcement activities.
Attachments
The following items shall be attached. Nil return to be indicated if the section is not
applicable
(a)
Contractor’s Monthly Incident / Accident Return Summary Table 1.
(b)
Contractor’s Monthly Accident Statistics Report Form Table 2.
(c)
Incident Listing - A listing of all incidents/accidents since the beginning of the
project with analysis - trend of incidents, root causes, preventive measures etc.
(d)
Updated organisation chart.
(e)
Title listing of all existing method statements.
(f)
Training register based on locations within the contract indicating completed
and scheduled.
(g)
Summary of all toolbox meetings.
(h)
Listing of promotional activities carried out during the month.
(i)
Schedule of promotional activities for next 6 months.
(j)
Summary of evaluation carried out on the SHE performance of sub-contractors
with actions taken.
(k)
Copies of SHE reports to MOM / NEA, SHE related meetings & WSHO / ECO
inspection reports with photos, close-out actions and target date of completion.
(l)
Register of plants, equipment and tools requiring statutory inspection with expiry
dates and date of next inspection.
February 2013 Edition
PS-B-37
(m)
Register of all plants, equipment and tools with monthly maintenance dates and
date of next maintenance.
(n)
Register of hazardous substance & chemicals with their hazards, location and
inventory.
(o)
Listing of emergency drills since the beginning of the project.
(p)
Summary of Noise monitoring data for the month with reasons for exceeding the
limits.
(q)
Summary of TSS monitoring results for the month with laboratory test reports.
(r)
Summary of Gas monitoring for the month with reasons for exceeding the limits.
(s)
Audit Schedule and update of the last external safety audit action plan.
(t)
Summary of visits by MOM, NEA, PUB or other authorities and its outcome
such as fines and demerit points since project commencement. Brief description
of follow up actions carried out pertaining to non-conformances found during the
visits.
(u)
Listing of SHE Awards since project commencement.
(v)
Summary of public feedback/complaints, and the investigation and action taken
to address the issue
(w)
Carbon Assets Inventory Form (refer to Attachment A-6)
(x)
Implementation status of Environmental controls.
Provide the following information for the environmental aspects listed from part
A to F below:
-
Current and upcoming environmental protection and mitigation measures
on the following aspects (include site layout and plans where applicable)
-
Inspection and maintenance regime/schedule
Environmental Aspects
A.
Earth Control
B.
Noise Pollution
C.
Vector Control
February 2013 Edition
PS-B-38
(y)
D.
Air Pollution
E.
Construction Waste Management
F.
Water Management and Conservation
SHE initiatives and best practices (to attach photos)
February 2013 Edition
PS-B-39
ATTACHMENT A-2
Table 1
CONTRACTOR’S MONTHLY INCIDENT/ACCIDENT
RETURN SUMMARY
PROJECT TITLE
:
CONTRACT
:
CONTRACTOR
:
TOTAL NO OF EMPLOYEES (including Subcontractors)
REPORTING MONTH
:
DESCRIPTION
:
YEAR
NO OF CASES
(this month)
:
NO OF CASES
(last month)
NO OF CASES
(this year
to date)
MOM Reportable Accident
Dangerous Occurrence (MOM Reportable)
Non MOM Reportable Accident
LTA Personnel Injury
rd
3 Party Injury
Near Miss/Dangerous Incident
Damage to Utility
Damage to Property
Fire
Road/traffic Incident
Security Violation
Environmental Harm
Crime
Compressed Air Sickness
Notifiable Industrial Disease
MOM Stop Work Order
LTA Stop Work Order
Others :
FORM COMPLETED BY :
DESIGNATION
:
SIGNATURE
:
DATE
:
February 2013 Edition
PS-B-40
ATTACHMENT A-2
Table 2
CONTRACTOR’S MONTHLY ACCIDENT STATISTICS REPORT FORM
PROJECT :
ITEM
CONTRACT NO :
(A)
AVG. NO.
OF
WORKERS
MONTH
(B)
MANHOURS
WORKED
(C)
NO. OF
FATAL
CASES
(D)
NO. OF MOM
REPORTABLE ACCIDENTS
excluding ( C )
( mandays lost > 3 days OR
hospitalised > 24 hrs )
(E)
MANDAYS
LOST
IN ( C ) + ( D )
YEAR :
(F)
NO. OF NON-MOM
REPORTABLE
ACCIDENTS
(G)
MANDAYS
LOST IN (F)
(H)
AFR
(I)
SR
( C ) + ( D )/ ( B )
x 1,000,000
( E )/ ( B ) x
1,000,000
(J)
DANGEROUS
OCCURRENCE
(MOM Reportable)
(K)
REMARKS
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
END OF
YEAR
ACCUMULA
TIVE
FORM COMPLETED BY :
DESIGNATION :
SIGN :
DATE :
February 2013 Edition
PS-B-41
ATTACHMENT A-3
RISK ASSESSMENT GUIDELINES
1.
The risk assessment process normally requires baseline information on
appropriate control measures, derived from a number to which the Contractor
is expected to make reference:

Industry standards and codes of practice

Experience of individuals

Accidents/incidents records

Knowledge of processes/activities
2.
It is essential that these risk assessments are carried out by teams of
appropriately experienced and competent people.
3.
General Risk Assessment Procedure
3.1
Breaking Down the Activity into its Constituent Elements
To breakdown an activity the following considerations must be taken into
account

A step by step breakdown of the work activity

The persons involved in the work

The duration of work

The type of equipment/machinery

The type of material handled

The work environment
3.2
Identifying the Hazards associated with each step
Consider what could go wrong at each step in order to identify the types of
hazards in the work activity

The hazards a person is exposed to at every step of the work activity,
eg. Falling from height, material falling from height, slipping

The hazards associated in operating the equipment / machinery

The hazards associated in handling the material

The hazards relating to the work environment
February 2013 Edition
PS-B-42
3.3
Evaluate Accident Frequency
3.3.1 This is based on the judgement of those carrying out the assessment and
where possible supported by LTA past projects statistics
3.3.2 TABLE 1 :
Accident Frequency
Likelihood
3.4
Description
Rating
Frequent
I
Likely to occur 12 times or more per year
Probable
II
Likely to occur 4 times per year
Occasional
III
Likely to occur once a year
Remote
IV
Likely to occur once in 5 year project period
Improbable
V
Unlikely, but may exceptionally occur
Evaluate Accident Severity
3.4.1 An estimation of the likely consequences of the hazardous element occurring
in terms of injury or loss.
3.4.2 TABLE 2 - Accident Severity
No.
Consequence Rating

1
Catastrophic
I



2
Critical
II



3
Marginal
III


Description(*)
Single or Multiple loss of life from injury
or occupational disease, immediately
or delayed; and/or
Loss of whole production for greater
than 3 man-days and/or
Total loss in excess of $1 million.
Reportable major injury1, occupational
disease1 or dangerous occurrence;
and/or
Damaged to works or plants causing
delays of up to 3 man-days; and/or
Total loss in excess of $250,000 but up
to $1 million.
Reportable
injury2,
occupational
2
disease ; and/or
Damage to works or plants causing
delays of up to 1 man-day; and/or,
Total loss in excess of $25,000 but up
to $250,000.
February 2013 Edition
PS-B-43
No.
Consequence Rating
4
Negligible
IV
Description(*)
 Minor injury3, no lost time or person
involved returns to work during the shift
after treatment; and/or
 Damage to works or plants does not
cause significant delays; and/or
 Total loss of up to $25,000.
Note: (*) If more than one of the descriptions occurs, the severity rating
would be increased to the next higher level. Applicable to item
numbers 2 and 3 only.
1
2
3
3.5
For man-days lost greater than 7 days.
For man-days lost between 4 to 7 days.
For man-days lost between 1 to 3 days.
Evaluate the Risk Matrix
3.5.1 TABLE 3:
Risk Index Matrix
Accident Severity Category
I
II
III
IV
Risk Category
Accident
Frequency
Category
I
II
III
IV
V
Catastrophic
Critical
Marginal
Negligible
A
A
A
B
C
A
A
B
C
C
A
B
C
C
D
B
C
C
D
D
Frequent
Probable
Occasional
Remote
Improbable
3.5.2 The definitions of the risk indices determined from the Risk Index Matrix are
presented in the table 4.
3.5.3 TABLE 4:
Risk Index
Definition of Risk Index
Description
A
Intolerable
B
Undesirable
C
Tolerable
D
Acceptable
Definition
Risk shall be reduced by whatever means
possible.
Risk shall only be accepted if further risk
reduction is not practicable.
Risk shall be accepted subject to
demonstration that the level of risk is as low as
reasonably practicable.
Risk is acceptable.
February 2013 Edition
PS-B-44
3.6
Propose control measures to reduce the risk to an acceptable level
Examples of such control measures are emergency stop devices found in
certain equipment, use of skilled tradesmen such as a lifting supervisor for
lifting operations.
3.7
Repeat Step 3 to 5 to re-evaluate the residual risk index with the control
measures in place.
This step is essential in monitoring the reduction of the risk after the
implementation of control measures.
3.8
A pro-forma for safety and health hazard log which can be used to record risk
assessments is attached in Table 5.
February 2013 Edition
PS-B-45
ATTACHMENT A-3
Table 5
SAFETY AND HEALTH HAZARD LOG
ACTIVITY-BASED RISK ASSESSMENT FORM
Company :
Conducted
By
(RA team
members) :
Last Review
Date :
S/No
Location of
work :
Activity/Process :
Name
Description of
Work Activity
Designation
Date
Name
Designation
Date
Name
Designation
Date
Approved
By :
Reviewed By :
Next Review
Date :
Hazards
Identified
Risk
Existing Control
Measures
Initial Risk
Index
F
S
R
Additional Control
Measures
Residual
Risk Index
F
S
R
Risk Owner (Action Officer)
Name
Designation
Note: F – Frequency of Occurrence; S – Severity of Hazard; R – Risk Index
February 2013 Edition
Followup
Period
PS-B-46
ATTACHMENT A-4
(Page 1 of 2)
METHOD STATEMENT
SUBMISSION REQUIREMENTS*
The checklist below serves as a guideline for Contractors in the submitting of
method statement to the Engineer.
This checklist is to be duly completed and submitted together with the method
statement.
Method of Work
1. Date, time and duration of works.
2. Site Plans/Schematic Diagrams.
3. Preparatory works.
4. Mode of transportation.
5. Actual work/installation/delivery.
6. Use of special equipment/machine.
7. Hoisting operations (including hoisting radius).
8. Inspection/Supervision.
9. Temporary Traffic Diversion/Control.
10. Liaising/Interfacing with other Contractors.
Yes
N/A
Remarks
Manpower
1. Organisational/Hierarchy Chart.
2. List of manpower.
3. Evidence of Site Safety Induction Training.
4. Evidence of Competency Training (e.g. Trade
Cert., Crane Operator’s License etc.).
Yes
N/A
Remarks
Health & Safety
1. Hazard analysis.
2. Preventive measures.
3. Safe Work Procedures.
4. Permit-to-work system.
5. List of Personal Protective Equipment.
6. Material Safety Data Sheet.
7. First aid/Fire fighting equipment.
8. Tool Box Meetings.
9. References to legislations/CP.
Yes
N/A
Remarks

Refers to work/activities which are potentially hazardous.
February 2013 Edition
PS-B-47
ATTACHMENT A-4
(Page 2 of 2)
Tools & Equipment
1. List of approved tools/equipment.
2. 110 volts for hand-held tools.
3. Relevant statutory certifications (e.g. LM
Cert., LG Cert., PE Cert. etc.).
Yes
N/A
Remarks
Materials
1. List of approved materials.
2. Schematic diagrams.
3. Safety Data sheet.
Yes
N/A
Remarks
Emergency Plan
1. Emergency evacuation plan.
2. Emergency reporting procedures.
3. List of essential personnel with contact
numbers.
4. Contingency plan.
Yes
N/A
Remarks
Others
1. Method statement Endorsed By WSHO
Yes
N/A
Remarks
Remarks:
Submitted By:
Name / Designation / Contact No.
Date
Contractor / Contract No.
February 2013 Edition
PS-B-48
ATTACHMENT A-5
(Page 1 of 8)
ESS ASSESSMENT FORM ON CONTRACTORS
Year
Contract No.
Month
Contractor
Contract Title
SECTION A - ACCIDENT STATISTICS
Item
Cumulative
Accident
Frequency
Rate
(AFR)
Cumulative
Accident
Severity
Rate
(ASR)
Max Score
(a) 0
5
(b) > 0 but < 1.0
4
(c)  1.0 but < 2.0
3
(d)  2.0 but < 3.5
2
(e)  3.5 but < 4.5
1
(f)  4.5
0
(a) 0
5
(b) > 0 but < 50
4
(c)  50 but < 100
3
(d)  100 but < 150
2
(e)  150 but < 300
1
(f)  300
0
SUB-TOTAL
Actual Score
10
February 2013 Edition
PS-B-49
ATTACHMENT A-5
(Page 2 of 8)
SECTION B - SITE SAFETY PRACTICES AND CONDITIONS
Max
Score
Item
Public
Complaints on
construction
noise, traffic
diversions, etc
Safety
Inspections*
(a) 0 valid public complaints
5
(b) 1 to 2 valid public complaints
3
(c) 3 to 4 valid public complaints
1
(d) 5 and above valid public complaints
0
(e) 100% addressed within required timescale
2
(f)
80% addressed within required timescale
1
(g) 60% addressed within required timescale
0
(a) Zero identified substandard conditions/
per safety inspection
practices
(b) Deduct for each item per safety inspection
rectification within 24 hrs
requiring
(c) Deduct for each item per safety inspection
rectification within 3 days
requiring
(d) Deduct for each item per safety inspection
rectification within 7 days
requiring
28 (Max)
- 3 (per
item)
- 2 (per
item)
- 1 (per
item)
(e) 100% of identified substandard conditions/
practices
at safety inspection rectified
within required timescale
5
(f) 80% of identified substandard conditions/
practices
at safety inspection rectified
within required timescale
3
(g) Below 80% of identified substandard conditions/ practices
at safety inspection rectified within required timescale
0
SUB-TOTAL
Actual
Score
40
Footnote:If there are zero valid complaints then scores should not be assigned for rectification but Section B prorated
accordingly.
2. If there are zero substandard conditions / practices, then scores should not be assigned for rectification but
Section B prorated accordingly.
3. Scores for the number of substandard conditions / practices should be based on the average scores obtained
for the safety inspections conducted during the month.
1.
February 2013 Edition
PS-B-50
ATTACHMENT A-5
(Page 3 of 8)
SECTION C - ENVIRONMENTAL, SAFETY AND SECURITY (ESS) MANAGEMENT
Item
Effective
Implementation of
ESS Management
(a) Occupational Safety, e.g., Permit-ToWork Systems, Safety Promotion,
Safety Training, Control of
Subcontractors, Emergency Drills,
PPE, Housekeeping, etc.
(b) Occupational Health, e.g., Hygiene
Hearing / Respiratory protection, etc
10
(c)
7
Site Security
(d) Environmental Management (see
attached Annex for breakdown on
areas of assessment and their
respective weightage on Environmental
Management)
(a) Implemented new and effective ESS
measures/ initiatives beyond legal and
contractual requirements eg. BBS,
Data loggers, etc
Safe Work
Practices
Max Score
Actual Score
16
5
(b) Method Statement & Hazard analysis
conducted on every work operation,
accepted by LTA
(c) Adherence to safe work procedures as
detailed in method statement and
hazard analysis during execution of the
work operation.
SUB-TOTAL
12
50
February 2013 Edition
PS-B-51
ATTACHMENT A-5
(Page 4 of 8)
ITEM
MAX SCORE
Accident Statistics
10
Site Safety Conditions and Practices
40
Environmental, Safety and Security Management
50
SUB-TOTAL
ACTUAL SCORE
100
SECTION D - DEDUCTIONS (when applicable)
(a) Fatality/Permanent Total Disablement Case
(50 marks for each case)
(b) Dangerous Occurrence (DO) as defined in Workplace Safety and
Health Act (50 marks for each occurrence)
(c) Amputations/Cases with  20 days medical leave (50 marks for each
case)
(d) Stop Work Orders by MOM, NEA or PUB (excluding Fatal/D.O. cases)
(50 marks for each case)
(e) Accident cases with medical leave > 7 but < 20 days medical leave
(30 marks for each case)
(f) Accident cases with > 14 days light duty (5 marks for each case)
(g) Incidents stated in Annex for Deduction (marks deducted for incidents
are as stated in the Annex)
(h) Fines issued by MOM, NEA or PUB (5 marks for each case)
Utility Damages
(i)
Results in disruption of service > 24 hours, or exceed $100,000 in
repair costs (10 marks for each case)
(ii)
Results in disruption of service > 4 hours, or exceed $10,000 in
repair costs (6 marks for each case)
(iii)
Results in disruption of service or exceed $5,000 in repair costs (
4 marks for each case)
FINAL SCORE
February 2013 Edition
PS-B-52
ATTACHMENT A-5
(Page 5 of 8)
Completed By Assessor:
Name:
_____________________
Designation: ____________________
Endorsed By Moderator:
Name:
___________________
Designation: _________________
Date:
____________________ Date: ______________________
Signature:
____________________ Signature: ___________________
* A copy of this duly completed form to be sent to LTA Safety Division
February 2013 Edition
PS-B-53
ATTACHMENT A-5
(Page 6 of 8)
ANNEX for Deduction
(DEDUCTIONS FOR NON-STANDARD ITEMS)
(a)
Marks to be deducted
Collision / runaway of any locomotives /rolling
stocks
20 marks for each case
(b) Derail of any locomotives /rolling stocks
5 marks for each case
End of List
February 2013 Edition
PS-B-54
ATTACHMENT A-5
(Page 7 of 8)
ANNEX OF ESS ASSESSMENT FORM ON CONTRACTORS
Year
Contract No.
Month
Contractor
Contract Title
Environmental Management
Actual
ITEMS
Earth Control Measures Plan have been
updated and reviewed by Qualified Erosion
Control Professional (QECP) and
implemented accordingly on site.
Earth Control
Measures
Solid Waste
Management
Noise Control
(If Applicable)
Effective maintenance regime in place that
provides adequate provision/ maintenance of
treatment plants, silt traps, silt fence, wash
bays & perimeter cut-off drains
Max Score
3
5
Adequate protection of exposed earth &
material
3
Concentration of total suspended solids in
discharge not greater than 50mg/L
4
Prevention of earth or construction wastes
littering from construction vehicles
2
Provision of adequate and well-covered bins
for containment of wastes, ensuring separate
bins for food waste.
Score
2
On-site separation to recover reusable and
recyclable wastes
3
Frequent disposal of waste to ensure no
over-flowing of waste
2
Efforts to reduce noise at source such as by
means of acoustic sheds.
5
Efforts to reduce noise at transmission
pathways such as by means of barriers
3
February 2013 Edition
PS-B-55
ATTACHMENT A-5
(Page 8 of 8)
Environmental Management
ITEMS
Employment of simple techniques such as wrapping metal
resonance head (hammer) with cloth and keeping machinery
covers closed
Noise Control
(If Applicable)
Water
Pollution
Control
Air Pollution
Use of sound-reduced machineries
Max Score
Actual
Score
2
5
Effective positioning of noisy plants and machineries away from
residential areas
5
Adequate provisions are provided to prevent oil, chemical and
other pollutive leakages. E.g. Spill trays and bund walls.
5
No sign of oil and chemical spillages/leakages
5
No black smoke emission from machineries
3
Periodic wetting of access routes
2
Arresting of dust at source/ proper shielding of dusty operation
2
Regular maintenance of machinery
2
Effective vector control plan implemented and carried out during
in-house search and destroy operations.
3
Pitched roof for all site containers
3
Control
Mosquito
Control
Larvicides/ Bacillus Thuringiensis Israelensis (Bti) placed in
stagnating water that cannot be cleared
Note that 2 marks will be awarded for effective usage of AntiMosquito oil
3
Effective Housekeeping
3
Ovitraps/ gravitraps used on site for monitoring
3
Effective drainage of stagnating water
2
60
FINAL SCORE
80 (With Noise
Consideration)
Actual Score x 16%
SCORE converted to 16% (Converted score to be assigned onto Section C item D of
ESS ASSESSMENT FORM (under Environmental Management)
Max Possible Score
February 2013 Edition
PS-B-56
ANNEX A-a
LIFTING OPERATIONS
1
General
1.1
The Contractor shall be responsible for ensuring that all lifting
operations carried out on site and any rental cranes brought onto site
are done so with minimal risk of injury to persons including members of
the public or damage to property.
1.2
Effective control must be exercised at all stages of a lifting operation
through the deployment of a competent lifting supervisor, a qualified
signalman, a registered crane operator and sufficient trained rigger.
1.3
All lifting machines, lifting appliances and lifting gears used on site
must be suitable for the task, used within their rated safe load capacity
and must be in good repair.
1.4
The Contractor is to submit a weekly list to the Engineer of all cranes
permanently deployed on site detailing their ownership, make,
identification number, maximum safe working load and the
corresponding radius, Lifting Machine (LM) certificate number and date
of expiry.
1.5
The Contractor shall ensure that any lorry loader on Site is only used
for the delivery to Site and collection / removal from Site of materials
within its rated lifting capacity, and not for lowering any materials into a
trench or excavation, or for raising any materials to a higher level.
However, transporting materials or plant / machinery around Site may
be permitted if the lorry loader has been tested on the site by an
Authorised Examiner.
1.6
All lorry loaders entering into the Site shall have an interlocking system
installed to prevent a lorry loader from moving off before its articulated
boom is fully retracted back to its “stored” position.
1.7
The boom of any lorry loader shall not be used for holding down
materials or equipment and it shall be retracted to its “stored” position
before it moves off.
1.8
No excavator shall be used as a lifting machine on site unless it is
originally designed and manufactured to also function as a lifting
machine and comply with all MOM stipulated requirements.
February 2013 Edition
PS-B-57
1.9
The Contractor shall ensure that a Permit to Lift system is operated to
evaluate all routine planned lifting operations generically and all heavy
or one-off lifting operations individually. This latter category of lifting
operations includes the raising / lowering of items of plant in
excavations. Lifting plans shall be submitted to the Engineer for
acceptance in advance of any heavy or one-off lifting operations.
1.10
Lifting Supervisors and Riggers shall adorn brown and red safety
helmets respectively. Riggers and signalmen shall wear red reflective
vest and identification tags.
2
Lifting Machinery
2.1
This term includes, but is not limited to, lattice jibbed crawler mounted
cranes, hydraulic variable jib mobile cranes, rail mounted gantry
cranes, mobile and fixed tower cranes.
2.2
The Contractor shall ensure that before any lifting machine, including
lorry loaders used for delivery to site, is brought into use on site the
labels on all controls, the details on the safe working load radius chart
and any other safety related notices in the cab or on the body of the
machine shall be written in English as well as in a language
comprehensible to the crane operator.
2.3
Before being taken into use on site for the first time, in the case of a
lifting machine which undergoes assembly on site, or following the
substantial alteration of any type of lifting machine such as the jacking
up of a tower crane, the lifting machine must be tested by an
Authorised Examiner and subsequently every six months whether it is
owned by the Contractor, one of his Subcontractors or by a crane
rental company. The Contractor shall make arrangements for the
testing before the expiry date so that there is continuity of cover of LM
certificate.
2.4
The Contractor shall ensure that no lifting operation shall be carried out
on site using the auxiliary hook of a mobile crane unless the SWL of
this is shown on the LM Certificate in addition to that of the main hook
block, and is not exceeded.
2.5
The Contractor shall ensure that both the Lifting Supervisor and the
crane operator are able to understand the working load chart.
2.6
No lifting machine over 15 years old shall be operated on any LTA
Site.
February 2013 Edition
PS-B-58
2.7
Cranes fitted with a load radius indicator (LRI) shall sound an audible
alarm in the crane cab if its safe working load is exceeded on either the
main or the auxiliary hook. A second alarm connected to the LRI, shall
be fitted external to the cab and shall emit a signal of a sufficient
volume to make it audible above the ambient site noise levels during
working hours. Visual warning shall also be provided externally to
indicate safe working range and overload conditions.
2.8
LRI shall be fitted with a limiting device, which disables the crane from
continuing with any lifting operation under overload conditions. Once
disabled, the device should only permit the crane to return to the safe
working range. The device shall be tamper proof, with no over-ride to
disable it, and shall be maintained in good working order. In case of
provision of bypass switch for LRI, it shall be secured by a lock and
kept with the lifting supervisor.
2.9
LRI shall be calibrated 6-monthly by an approved agency and verified
by the Authorised Examiner during his 6-monthly inspections. Records
of LRI calibration shall be submitted to the Engineer. If there is any
doubt as to the accuracy of the LRI the machine shall be taken out of
use until the calibration is carried out to the satisfaction of the
Engineer.
2.10
If the crane is down rated by the Authorised Examiner during his 6
monthly inspections then the LRI shall also be calibrated and a new
capacity chart should be drawn up and posted in the crane cab. The
AP shall highlight the above details on the LM certificate.
2.11
Lifting machine shall not be used for any unsafe operation that may
affect its overall integrity or stability.
2.12
The Contractor shall ensure that every lifting machine capable of
travelling / tracking, including a gantry crane, or a slewing motion, such
as a mobile crane, shall be operated in such a manner that there is
always an unobstructed passageway in excess of 600mm between it
and any fixture or other machinery.
2.13
All Lifting machines that operate on LTA sites shall be installed with a
rear view camera that enables the operator to have a clear view of the
back of the machine.
2.14
The use of fly jib of any Lifting machines shall be subjected to the
approval of the Engineer.
February 2013 Edition
PS-B-59
3
Crane Data Logger
3.1
All cranes without manufacturer fitted data loggers operating on LTA
sites shall be retrofitted with data loggers approved by the Engineer.
3.2
All cranes with manufacturer fitted data loggers shall have the data
loggers enabled when operating on LTA sites.
3.3
The data recorded by the data loggers shall be monitored, downloaded
and interpreted on a monthly basis and submitted to the Engineer in
the form of a report. The Engineer may at his discretion require the
Contractor to download the data when he deems necessary.
4
Temporary Rental Cranes
4.1
At least 24 hours before any rental mobile / crawler mounted crane is
brought onto site the Contractor must submit to the Engineer:
(a)
The lifting plan for the operation to be carried out.
(b)
A copy of the current LM certificate for the crane.
(c)
A copy of the crane operator’s MOM registration.
(d)
The name of the LS will be responsible for it.
(e)
A record of any repairs carried out since the last LM certificate
was issued.
4.2
The Contractor shall ensure that, as far as practicable, rental cranes
coming onto site are manned with the same operator, who shall
undergo site induction training before his first job on site. If for any
reason the crane rental company sends a substitute operator then he
also shall undergo site induction training.
4.3
Before any crane is accepted onto site for use it must undergo a
thorough mechanical check by the Crane Maintenance Supervisor, and
the findings verified by the Contractor’s Safety and Health Officer.
4.4
Lifting operations involving lorry mounted mobile cranes shall take
place over the side of the crane body and not in an arc over either the
front or rear of the chassis, in accordance with safe working practices.
February 2013 Edition
PS-B-60
5
Erection of Cranes on Site
5.1
The Contractor shall engage only Approved Crane Contractors to
install, alter, repair or dismantle any parts of a mobile or tower crane
which affect the lifting capacity of that crane. A copy of the MOM
approval letter shall be retained with the crane erector doing the repair.
5.2
The minimum strength of the team who erects / dismantles any tower
crane must be one approved crane erector and five trained assistants,
and for a mobile crane is one approved crane erector and two
assistants.
6
Lifting Gear (LG) / Lifting Appliance (LA)
6.1
The Contractor shall ensure that every LG/LA brought onto site,
including that accompanying rental cranes, lorry loaders, excavators,
cement buckets, air receivers, skips, welding sets etc. has a valid
LG/LA certificate and clearly marked with its SWL. All LG/LA shall be
inspected by an Authorised Examiner once every six months.
6.2
The Contractor shall ensure that LG/LA is not loaded beyond its SWL
and this includes multi leg chain slings being used at variable angles.
6.3
The Contractor shall ensure that LG/LA is not used for any purpose
other than the raising or lowering of a load. If an excluded activity takes
place, such as the use of a lifting chain for towing an item of plant /
machinery, then the Contractor shall ensure that this item of LG/LA is
no longer used for any further lifting operations.
6.4
If an item of lifting gear is inadvertently subjected to a force exceeding
that it is designed to experience when lifting an object at its SWL then
the Contractor shall ensure that it is taken out of use.
6.5
The Contractor shall implement an inspection programme to
thoroughly check all LG/LA by a LS prior to its first use on site and
thereafter on a monthly basis. A monthly colour coding system shall be
adopted. Defective LG/LA shall be discarded.
6.6
When not in use the Contractor shall ensure that all items of LG/LA are
stored in a rack sheltered from the weather and maintained regularly.
Should any LG/LA be exposed to a corrosive material e.g. wet
concrete, it must be washed off afterwards and re-greased.
February 2013 Edition
PS-B-61
7
Lifting Supervisors (LS)
7.1
The Contractor shall ensure that a sufficient number of qualified LS are
employed on site, whether by himself or by his Subcontractors, to give
adequate cover for all lifting operations carried out both by day and by
night including loading/unloading. There must be one LS present for
one crane including all minor and major operations. In addition the
contractor shall also station at least one additional worker to assist
signalman for lifting operations carried out near public areas.
7.2
The contractor shall install warning devices/ flags at least 2 metres
above top of hoarding that are alongside roads, footpaths and adjacent
structure.
7.3
LS shall supervise and co-ordinate all lifting operations under his/her
charge. LS shall familiarise himself with the safe working load chart of
each crane for which he is responsible and has identified himself to the
operator of each such crane as being the only individual whose
instructions concerning any lifting operation are to be followed. This
includes the positioning of the crane prior to the lift as well as the
slinging of the load.
7.4
Before any lifting operation involving a mobile or crawler mounted
crane is carried out the LS must satisfy himself that the crane is
positioned suitably close to the load and its destination to ensure that
the operation can be carried out at the safest appropriate radius.
7.5
The LS shall ensure that the load is safely rigged, and a tag line is
attached if appropriate, before signalling to the crane operator to start
the lift. The LS is responsible for the load until it is safely resting at the
intended destination either by taking control of the operation himself for
non-routine lifts or, for routine lifting operations, by thoroughly briefing
the crane operator, riggers and signalman on the safe procedure to be
followed.
7.6
The Contractor shall put measures in place to discipline any person
other than the dedicated LS, or one acting under his close supervision,
who attempts to take control of any lifting operation other than those of
a routine nature where a safe lifting procedure has already been
established.
February 2013 Edition
PS-B-62
8
Crane Maintenance Supervisor
8.1
The Contractor shall appoint a full time Crane Maintenance Supervisor
certified competent by MOM approved crane supplier company to
attend to all the mechanical aspects of operations involving lifting
machines, lifting equipment and lifting gear on site.
8.2
The Crane Maintenance Supervisor shall carry out periodic planned
maintenance on all lifting machine to ensure that the lifting machine is
in good working order whilst in the Engineer’s sites.
8.3
The Crane Maintenance Supervisor shall be responsible for ensuring
that each crane operator is competent to carry out the checks
necessary before the crane is taken into use on any day / shift, and
shall carry out his own weekly thorough check of all cranes on site.
9
Crane Operator
9.1
The Contractor shall engage only qualified crane operators with at
least 5 years of experience in operating similar types of cranes with no
record of crane toppling / failure or barred from any site previously for a
crane related incident.
9.2
The crane operator shall enter the date, types of maintenance carried
out and any malfunction of the crane in a checklist or logbook. He shall
not operate the crane until any such defect is rectified, and the crane’s
use is authorised by his LS.
9.3
All cranes shall be checked by its operator at the start of any day / shift
using a checklist written in English and in a language comprehensible
to the operator. Copies of the checklist together with LM certificate,
operator certificate, permits should be retained in the crane cabin for
verification.
9.4
The crane operator is to ensure that the outriggers are fully extended,
and any adjustments made to the jacks to level the crane before the
lifting operation commences. Steel plates of minimum dimensions 1m
by 1m by 25mm shall be placed under all the outriggers of any lorry
mounted mobile crane deployed for a lifting operation unless that
crane is entirely sited on hard standing such as a reinforced concrete
surface, with no void underneath. Pieces of timber are not to be used.
February 2013 Edition
PS-B-63
10
Lifting Engineer
10.1
To ensure that day to day lifting operations are monitored at an
appropriate level of management the Contractor shall appoint lifting
engineer from his staff who has a minimum of 5 years site experience
to oversee the activities of the various lifting supervisors on Site. Any
problems which arise concerning the safety of any proposed lifting
operation shall be referred to this engineer for a final decision.
10.2
The Contractor shall ensure that a lifting plan is drawn up and agreed
with his appointed engineer responsible for lifting operations before
any lifting operation is started. The engineer shall verify that the LS,
the crane operator, the signalman and the riggers understand the part
they have to play in ensuring that it is carried out safely. The lifting plan
shall be forwarded to the Engineer for acceptance.
10.3
The lifting engineer is responsible for checking that the proposed
location of the crane for the lifting operation is sufficiently compacted to
bear safely the force exerted by the crane, taking into consideration the
proposed load to be lifted, and any additional forces exerted by the
crane slewing or derricking.
10.4
The Contractor shall put in place a system for inspecting and
upgrading the route over which a crawler mounted / mobile crane is to
transit when it is being moved on the site before any proposed lifting
operation to ensure stability of the crane whilst travelling. Inspections
must be conducted at least once a week or after inclement weather.
The records of the inspections must be properly documented. This
procedure shall also be followed when it is proposed that a crane
transits carrying a load.
10.5
The Contractor shall appoint a person of engineer status who has
relevant experience to design the crane access routes around the site.
This may be the same engineer who has been appointed as the
Contractor’s lifting operations engineer.
10.6
The Contractor’s lifting operations engineer shall certify in writing, at
least once a day that the crane access routes will support the force
exerted by each crane and any load it may be carrying. The appointed
engineer is to make an entry on a form designed for that purpose, sign
it and hand it to the operator to keep in his cab before any crane is
transited. Crane access checks shall be repeated after inclement
weather as appropriate.
February 2013 Edition
PS-B-64
ANNEX A-b
SITE TRANSPORT
1.
GENERAL
1.1.
All vehicles driven on Site shall be maintained in roadworthy condition
and be registered with the appropriate authority in accordance with the
Road Traffic Act. Each driver of these vehicles shall hold a valid driving
licence authorising him to drive that class of vehicle. Such vehicles
include, but are not limited to Cement lorries; Pick-up and flat bed
trucks; Lorry loaders; and Rough terrain forklifts.
1.2.
Transportation of personnel on flat bed trucks, cranes, forklifts,
dumpers and similar vehicles not designed to carry passengers is
prohibited.
1.3.
Personnel may be transported on Site by pick up trucks, lorries and
similar which incorporate seating, for example in the form of planks, in
the well of the vehicle, together with suitable handrails and mid-rails
around the periphery of the well. Free-standing chairs shall not be
used as seating. All passengers must be seated at all times that the
vehicle is in motion and shall not have any part of their body outside
the vehicle. No more persons shall be carried in the cab of any vehicle
than the number for which it is licensed.
1.4.
An appropriate speed limit shall be set and enforced on site.
1.5.
The Contractor shall appoint banksman to control reversing vehicles
and congested machinery movement. The banksman shall wear a high
visibility vest clearly marked “Traffic Controller” or similar and trained in
the standard hand signals and always standing to the side of the
driver’s cab, not to the rear of the vehicle.
1.6.
Any routes on the Site where headroom is restricted shall have
appropriate warning signs posted at the approach to such restriction.
1.7.
The Contractor shall ensure that the drivers of all delivery vehicles to
Site and those removing materials from Site, wear appropriate PPE
including, but not limited to, safety footwear and safety helmets at all
times that they are outside the cabs of their vehicles.
1.8.
The Contractor shall ensure that there is daily co-ordination of the
movement of mobile plant and vehicles on Site to minimize the
potential for an incident.
February 2013 Edition
PS-B-65
1.9.
All Site access roads used by mobile plant / vehicles shall be
constructed of hard standing and suitable for its intended purpose.
1.10.
No unauthorised parking shall be permitted on the Site anywhere other
than at the designated parking area. Only cars bearing the Contractor’s
permit shall be allowed to park there, and those of authorised visitors.
1.11.
Site plant / vehicles shall be parked at designated locations only so
that they do not cause obstructions to Site traffic.
1.12.
Consideration shall be given at all times to the safety of the road users
and gates should be positioned so that they minimise the additional
risk to traffic at such locations as road junctions, bends, and etc.
1.13.
A clear line of sight shall be maintained for all drivers of vehicles using
the road, taking into consideration the speed limit of that road and the
position of existing street furniture and trees / vegetation, to maximise
the warning distance of approach.
1.14.
If deemed necessary by the Engineer suitable mirrors shall be
positioned at these points to enhance vision of traffic movement both
on the roadway and on entering / leaving the Site.
1.15.
Where the Site gates lead directly off a public street an effective
method of controlling vehicles entering / leaving the Site shall be
employed. This shall be manned by workers who have been trained in
road safety and who are wearing high visibility vests bearing the
wording “Traffic Controller”. They should use recognisable hand
signals and advice should be sought from the Traffic Police if
necessary.
1.16.
If deemed necessary by the Engineer a traffic lane may be coned off to
allow for safe deceleration.
1.17.
During the hours of darkness floodlighting of these Site entrances shall
be provided to enhance visibility of such traffic controllers, but care
must be taken that these lights do not dazzle any on-coming traffic or
pedestrians or cause a nuisance to neighbouring residents. The traffic
controllers should utilise hand held batons or gloves incorporating
reflective material.
1.18.
Warning signs in compliance with the Code of Practice for Traffic
Control at Work Zone shall be conspicuously displayed at appropriate
distances before such gates into the Site as to give all drivers a clear
understanding of the traffic hazard ahead.
February 2013 Edition
PS-B-66
1.19.
If vehicles entering / leaving the Site have to cross a public footpath or
pavement then a worker must be deployed to control pedestrians as
well as road traffic. Suitable warning signs should be deployed to alert
pedestrians to possible traffic movement across the footpath.
1.20.
Truck Mounted Attenuator (TMA) to be deployed for works on road
where legal speed limit is 70km/hr and above regardless of any
advisory speed limit imposed on that road.
February 2013 Edition
PS-B-67
2.
SPILLAGES ON ROADS
2.1.
A paved truck wash bay for washing vehicles leaving the worksite onto
a roadway shall be provided and maintained at each vehicular egress
point before commencement of works on Site. Each truck wash bay
design must be approved by the Public Utilities Board (PUB) as part of
the Earth Control Measures (ECM) Plan before it can be constructed
on site.
2.2.
Washwater from the wash bays shall be directed into water treatment
plant for treatment.
2.3.
Preventative measures shall be taken to limit the incidence of earth
droppings from earth moving vehicles. In the event that any earth
dropping occurs onto a public road/drain, such earth shall be removed
and the roads / drains washed by the Contractor at his own expense to
the satisfaction of the Engineer.
2.4.
Contractor shall assign personnel and establish a system of checks to
ensure that all vehicles and trucks leaving the worksite do not have the
potential to litter the roads due to its wheels or transportation materials.
2.5.
Where it is foreseeable that water may drain out from a load of soft
marine clay or similar transported wet materials that will contaminate
the road surface, the Contractor shall ensure that specially designed
and constructed watertight trucks are used to transport these
materials.
2.6.
All cement mixer trucks servicing LTA sites must have a containment
system or a flap installed to prevent spillage of cement. Please refer to
schematic drawing and photographs below for the installation of the
flap.
February 2013 Edition
PS-B-68
February 2013 Edition
PS-B-69
February 2013 Edition
PS-B-70
ANNEX A-c
SITE SECURITY
1
GENERAL
1.1
The Contractor is responsible for the security of the sites, works areas,
material storage areas, site offices, facilities and the Works.
1.2
Security for the Site and the Works shall be maintained throughout the
duration of the Contract or the extended period as provided in the
Particular Specification.
1.3
The Contractor is to provide a detailed Security Plan which includes
security proposals for the various phases of the construction of the
Works.
1.4
The security for the various phases of the Works shall include the set
up phase, temporary works phase, structural works phase, E&M works
and architectural works phase as well as the completion phase.
1.5
For each phase, the Contractor shall detail the security measures,
facilities, guards and patrols to be implemented.
1.6
Within 2 months or other specified period from the award of the
Contract, the Contractor shall submit a fully detailed Security Plan
detailing the Contractor’s propose security measures and facilities he
intends to implement throughout the Contract duration. The Security
Plan shall include but not limited to the followings:
(a)
Method of securing all site and works areas; offices and
facilities, etc.;
(b)
The security facilities to be set up and its locations;
(c)
Lightings, alarms, communication
surveillance equipments, etc.;
(d)
Layout and site plans;
(e)
Personnel, manpower and the organisation chart;
(f)
Guards and patrols, numbers, locations and frequency;
(g)
Security for various phases or stages of the Works;
(h)
Controls to be implemented for access by authorised personnel/
contractors/ Construction Equipment/ Plant/ vehicles/ materials;
equipments,
cameras,
February 2013 Edition
PS-B-71
(i)
Control of access points for visitors and their vehicles entering
the Site, issue of entry permits and maintaining records for
every visitor and vehicle into the Site, including their stated
purpose;
(j)
Monthly review and reports;
(k)
Incident report and review;
(l)
Audits; and
(m)
Others.
1.7
The plan shall include a central security post/ office manned at all
times by a competent uniformed supervising security guard and an
assistant from a licensed Security Agency at an agreed location. It
shall be possible to communicate between each of the satellite security
posts/office and the central security post/office.
1.8
The Contractor shall update the Security Plan regularly and when the
Works enters a new phase to ensure that the Site, facilities, and Works
are adequately and sufficiently protected against theft, vandalism,
wilful damages, misdemeanours, and other illegal or undesirable
activities. Sufficient deterrence shall be implemented to be in tandem
with the progress of the Works.
1.9
The Contractor shall be aware that there may be other contractors
employed or engage by the Authority to carry out works within the Site.
Security measures shall cover these works carried out by other
contractors, their site storage and facilities.
1.10
Security audit shall be carried at 6 monthly intervals to detect lapses
and other inadequacies of the Security Plan. Audit reports and
propose corrective actions shall be submitted to the Engineer.
1.11
The Contractor shall improve his site security and or implement other
measures required by the Engineer when he is of the opinion that the
security measure is insufficient or where there are lapses in the
security system.
2
HOARDINGS
2.1
The safety of vehicular movement onto and off Site shall be planned
before the Site hoardings are erected to allow for features to be
incorporated maximising public safety in connection with Site activities.
February 2013 Edition
PS-B-72
2.2
A 2.4 metre high durable metal perimeter hoarding shall be provided
and maintained around the perimeter of the worksite and of all satellite
locations to the acceptance of the Engineer. The hoarding shall be well
designed and secured in place to prevent it being blown over by gusts
of wind and shall be sufficiently robust to deter anyone from removing
or displacing any panels. Regular maintenance shall be carried out.
2.3
At all works areas; suitable and effective gates shall be provided and
shall be locked during non working hours/days. Guard posts shall be
constructed and guards shall be stationed at these posts. It shall be
illuminated to enable the guards to carry out checking at night. The
guard shall check persons, vehicles, materials and other equipment
entering and leaving site. Intercom or other communications shall be
provided and maintained between the guard post and the security
guard office.
2.4
Where it is not practicable to post security guards at gates to satellite
locations as only infrequent access is required then these gates shall
be kept securely padlocked and the key held by nominated
supervisors who shall be held responsible for ensuring that the gates
are locked closed after work has ceased there temporarily and the
workers have left that location. These remote sites shall be secured
and guard-patrolled during non working hours/days at non fixed
intervals.
2.5
At strategic locations along hoardings, entrances, guard posts and
other facilities, spot lights shall be installed.
2.6
There shall be no unauthorised openings in the perimeter hoarding. All
access and egress shall be via gates which are manned by 24-hour
security guards - see Clause 2.7 below.
2.7
If for any reason the Contractor authorises any panels to be moved to
create a temporary opening then a guard must be posted to restrict
access to authorised personnel/ Construction Equipment/ Plant/
vehicles only. It shall permanently close immediately after works is
completed.
2.8
Where it is not practicable to post security guards at gates to satellite
locations as only infrequent access is required then these gates shall
be kept securely padlocked and the key held by nominated supervisors
who shall be held responsible for ensuring that the gates are locked
closed after work has ceased there temporarily and the workers have
left that location.
February 2013 Edition
PS-B-73
2.9
Should there be any risk of materials, tools, waste material or similar
escaping from any part of the Site either as projectiles or falling objects
etc., then an effective extension for the Site hoarding shall be designed
and erected to prevent this. Where a public footpath or pavement runs
alongside the hoarding then overhead protection must be provided
where Site activities pose a foreseeable risk of such occurrences.
3
PERSONNEL ACCESS
3.1
The Contractor shall be responsible for controlling worksite security to
prevent unauthorised access, maintain public safety and minimise
theft, vandalism, wilful damages, arson and other offences.
3.2
The Contractor shall ensure that no illegal workers or unauthorised
persons are allowed on Site. The Contractor shall conduct both internal
and external raids to weed out any illegal workers or unauthorised
persons.
3.3
Security of the Site shall also be maintained to ensure that only those
persons who have the skills and training to work safely on Site and
who are wearing the appropriate personal protective equipment (PPE)
may be admitted.
3.4
At the main Site office, the Contractor shall set up a fully equipped
security guard office at the entrance to the offices. The security guard
office shall be at least 6m x 3m with direct view overlooking the
entrance. A visitor book shall be maintained to record visitors
entering/leaving the site or offices. Workers’ security passes shall also
be issued to all workers entering the Site. Visitor shall be issued with
temporary passes. Ingress and egress of vehicles shall be logged.
3.5
A similar security pass system shall also be operated at the main
entrance to all the sites. This shall preferably incorporate a turnstile /
swipe card reader but any other equally effective means may be
utilised with the prior acceptance of the Engineer.
3.6
Guard posts erected at the main entrances where access is to be so
controlled are to be staffed by trained employees of the Contractor or
employees of a subcontract licence security agency. Sufficient guards
shall be on duty at any one time to give effective 24-hour cover. These
trained guards shall wear uniform to enable easy identifications.
3.7
All guard posts shall be equipped with a telephone / radio
communication system, a panic button and an audible alarm.
February 2013 Edition
PS-B-74
3.8
Two-way communication equipment shall be provided to the guards to
maintain communication between guards at other security posts or on
patrol and the security guard office. A general alarm system shall be
installed for use in emergency. The Engineer’s site offices shall be
installed with intruder alarms, and protection systems. The site offices
surrounding shall be well lit.
3.9
The access control system shall cover all staff, direct employees of the
Contractor, LTA project staff, Interfacing Contractors and service
providers such as canteen workers, cleaning workers and similar as
well as all subcontract staff / workers and those of sub-subcontractors
etc. including operators of rental Construction Equipment / Plant.
3.10
Each security pass shall bear the photograph of the holder and his
NRIC No./ Passport No. and Work Pass / Employment Pass number
as appropriate. It shall be issued after completion of site safety
induction training via a central registry controlled by the Contractor.
Temporary visitor passes may be issued for those personnel on
authorised business, in which case their names must be recorded
together with times of arrival and departure plus signature.
3.11
The Contractor shall issue first time security passes to the Interfacing
Contractors. The cost of subsequent replacement of security passes
will be borne by the Interfacing Contractors.
3.12
Persons not wearing the correct PPE shall not be allowed onto Site,
unless they identify themselves as visiting the Site office only and the
Contractor has provided a designated safe access route to and from
the Site access control point for this purpose.
3.13
Control shall also be exercised over authorised workers entering and
leaving the Site during non working hours / days to prohibit any alcohol
or illegal substances from being brought into the quarters which could
foreseeable lead to fights or to other incidents. Periodic or spot checks
shall be carried out to deter theft, vandalism, damages or illegal
activities.
3.14
An accurate headcount shall be kept of all persons entering the
worksite so that they can all be accounted for in case of an emergency.
February 2013 Edition
PS-B-75
4
VEHICULAR ACCESS
4.1
Effective control shall be exercised over materials entering and leaving
the Site, to check on the suitability / safety of Construction Equipment,
Plant and materials delivered to Site and to prevent theft. For all
materials including waste and salvaged materials, Construction
Equipment and Plants leaving the Site a proper record of
authorisations given by the respective contractors issuing such
removal chits shall be maintained.
4.2
Wherever practicable separate access and egress gates shall be
provided. The control point for access should be located a short
distance inside the main gate to permit a vehicle to pull off the road
before halting to be checked.
4.3
A security post shall be provided at each vehicular access point, sited
so that the checker has a clear view of incoming vehicle registration
plates and any passengers in the cabin.
4.4
The Contractor shall provide the following at all designated site
entrances and exits for vehicular access:i) Illumination of at least 100lux;
ii) Convex mirror (32 inch/ 24 inch) shall be provided at entrances/exit
point adjoining roads; and
iii) Revolving light (complying to BS3143 Part 4 or an approved
equivalent, e.g., Code of Practice for Traffic Control at work zone).
iv) Vehicle lay-by at all site entrances/ exits point where possible.
4.5
Railings or similar should be erected inside the Site to prevent workers
and others on Site from walking into the path of vehicles entering /
leaving the Site.
4.6
To prevent all lifting machines and vehicles from infringing the height
limit of 4.5m in public roads. The Contractor shall install an effective
and robust steel height barriers at ALL vehicular access. The steel
height barrier shall be constructed with a height infringement gauge
that limits the height of lifting machines and vehicles to less than 4.5m
February 2013 Edition
PS-B-76
4.7
Security drop-bars shall be maintained in the closed position at all
vehicular entry and exit points to the Site and every vehicle shall be
stopped outside the barrier. The barrier should only be raised after
authority has been given to the driver of the vehicle to proceed. Hump
shall also be constructed at exit.
4.8
The registration numbers of all vehicles entering and leaving the Site
shall be recorded.
4.9
No goods shall be off-loaded at the Site entrance in a manner that
creates a hazard to other vehicles entering / leaving the Site.
4.10
Vehicles waiting to get onto the Site should be directed to a designated
holding area which minimises obstruction to other road users, and
called forward by a flagman.
4.11
The main gates shall be closed and locked after construction work has
ended for the day.
4.12
The main gates and control points are to be well lit during the hours of
darkness.
5
SITE PATROLS
5.1
Security guards shall patrol the Site regularly during the night, non
working days and public holidays covering all locations within the Site
perimeter to deter, detect and follow up any undesirable event such as
theft, robbery, violence, damage to any property, trespass, etc. The
areas to be covered shall include, but not be limited to Site offices,
Housing quarters, Canteen area, Materials Stockyards and Perimeter
hoarding.
5.2
Clocking points shall be installed to record their presence. Guard
patrols shall visit designated clocking points within the station and the
perimeter of the station site at least 4 times during the night and extra
5 times during the day on non working day. A register is to be kept to
record the guards visits.
February 2013 Edition
PS-B-77
5.3
In addition to the above when the Works are near completion, guards
shall patrol inside the station and clock at pre-determined clocking
points at fixed intervals. Only 1 or 2 access points into the station shall
be used and manned. All persons entering or leaving the station shall
sign in or out and record their works or purpose. All materials and
equipment (including those belonging to the Interfacing Contractors)
brought into or out of the station shall be recorded. No materials or
equipment shall be taken out of the station without authorisation.
5.4
All incidents shall be recorded and reported to the Engineer. In cases
of emergency, the correct persons or appropriate emergency services
shall be notified.
6
Security Guards
6.1
Guards shall wear uniform so that they can be readily identified. They
shall be able bodied, adequately trained, approved by relevant
authorities and shall have no criminal records. Guards on patrol shall
work in pairs.
6.2
Personal Protection Equipment (PPE) shall be provided to the guards
by the Contractor and they shall wear them when patrolling or visiting
the sites areas. They shall also attend the safety induction course.
6.3
Guards shall be fully trained to handle various situations such as
unauthorized site entry, theft, vandalism, fire, accident, etc.
6.4
A full-time guard supervisor/superintendent shall be assigned to
supervise and check on the guards. He shall be trained and well
versed in security procedures, measures and system, including
preparing monthly reports, incident reports, reviews and audits. He
shall conduct security briefing, site security campaign, provide
information to workers on security and other preventive measure or
deterrents.
February 2013 Edition
PS-B-78
ANNEX A-d
CIVIL ENGINEERING/DEEP EXCAVATIONS
1
Deep Excavations
1.1
The Contractor shall appoint sufficient number of banksman to
coordinate excavation activities at the pit and the haulage activities
from the pit to the bank. The banksman shall be appointed in writing
and should have attended Signalman training course approved by
MOM. The banksman shall be properly identified on site, stationed atgrade and have overall control of the excavation works.
1.2
For excavations exceeding 4 metres in depth, the Contractor shall
appoint at least one banksman within 30 metres length of excavation. If
deemed necessary by the Engineer, the Contractor shall appoint
additional banksman. For excavations exceeding 10 metres in depth,
the Contractor shall appoint one banksman for every long-arm or
telescopic excavator at the bank.
1.3
Proper means of communication in the form of walkie-talkie sets
should be established between the banksman and the excavator
operators. No one shall be within any excavator's swing radius. In
addition, all excavators shall be installed with rear view camera that
enables the operator to have a clear view of the back of the machine.
1.4
Long arm excavators shall be provided with an extended reflective
mirror in front of the operator's cabin to enhance operator's visibility
and shall not operate without the presence of the banksman.
1.5
Excavators within the excavation pit shall have suitably reinforced
cabin roofs capable of withstanding impact from falling objects from the
top of the excavation and its movement coordinated by one of its
operator, who shall be appointed as a leader by the Contractor.
1.6
The designated locations at walers and struts used by the
instrumentation contractor for instrumentation reading and monitoring
shall be provided with 2 rows of horizontal rigid guardrails to prevent
persons falling from height. Openings within struts are to be covered.
The vertical distance between the 2 rows of horizontal guardrail shall
be not more than 600mm. Toe boards are to be provided accordingly.
February 2013 Edition
PS-B-79
1.7
An alternative source of power and emergency lighting system shall be
provided to allow emergency securing operations and evacuation
safely in the event of a primary power failure. An adequate number of
lamps shall be located at key points underground.
2
Pipe Jacking
2.1
No person shall enter a pipe jack of less than 1,200mm in diameter.
2.2
All work within a pipe jack shall follow strictly the procedures for work
within a confined space and a permit to enter procedure shall be
followed.
2.3
All persons shall be out of the tunnel when jacking is taking place and
shall not re-enter until the ram is no longer in motion.
3
Hand Driven Tunnels
3.1
Excavation by hand of a full tunnel face shall be from the top
downwards, taking the face out in steps or benches and securing the
top and face as soon as they are exposed. Wherever practicable an
open shield, extended in the crown with a hood, shall be used to
provide initial support and protection unless otherwise acceptable to
the Engineer. Faceboards held in place by hydraulic jacks may be
necessary in soft ground conditions, if applicable.
3.2
Rings of segments shall be installed as close as practicable behind the
working area in a pre-determined sequence by a mechanical erector,
or by hand for smaller diameter drives, and the shield jacked forward
off the completed segment lining.
3.3
Properly designed and installed working platforms shall be provided
close to the face in tunnels over 2 metres in diameter and work
sequence controlled so that workers in the invert are exposed to the
minimum of falls of soil or rock.
3.4
Hand mucking shall be employed at the face, with mechanical means
for muck removal following close behind, where the diameter of the
drive permits.
February 2013 Edition
PS-B-80
4
Emergency Plan
4.1
The Contractor shall identify all possible emergency situations specific
to the contract and submit an emergency plan to the Engineer for
approval.
4.2
The plan shall address the emergencies specifically for the various
locations within the contract in terms of assembly areas, emergency
equipment, access/egress, and etc. Review Levels (Alert Levels and
Work Suspension Levels) from instrumentation monitoring works shall
form part of the emergency evacuation criteria.
4.3
The Contractor shall work with the Singapore Civil Defence Force
(SCDF) to develop the emergency plan. The plan shall be
communicated to all the personnel within the Site.
4.4
The Contractor shall, once every six months, organise table top
emergency exercises based on likely site scenarios in which the key
site personnel work through their emergency response roles. SCDF
shall be included in the emergency drills. The Authority’s Safety
Division shall be invited to this exercise as an observer.
4.5
The Contractor shall conduct in-house emergency exercises and drills
on a quarterly basis and conduct joint emergency exercises and drills
with the SCDF at least twice (2) per year.
5
Escape Staircase and Walkways
5.1
The Contractor shall provide at least two (2) staircases as a minimum.
The staircases shall be positioned in such a manner to facilitate the
evacuation of all personnel within ten (10) minutes from the excavation
area.
5.2
The emergency escape staircases shall comply with the drawings
attached in this annex or otherwise approved by the Engineer.
5.3
At least 2 sets of emergency alarm shall be provided from independent
power source, such that the second emergency alarm can be activated
upon the first alarm failure.
5.4
The Contractor shall provide proper walkways along struts and walers
for access and egress. Walkways shall also be provided on planned
emergency escape routes.
February 2013 Edition
PS-B-81
6
Mancage for Emergency Rescue
6.1
The Contractor shall provide at least one (1) mancage at each
excavation area for emergency rescue operation. The mancage(s)
shall be located at a place accessible or available within five (5)
minutes from any accident location within the excavation area.
7
Instrumentation and Monitoring Meetings
7.1
The Contractor’s Safety and Health Officers shall attend all site
monitoring meetings to be updated with the instrumentation readings of
the Works so that he can advise the Contractor on the appropriate
actions to be taken.
8
Radio Frequency Identification (RFID) Tracking System
8.1
The shall implement a RFID based personnel tracking system for all
deep excavation works, underground stations and tunnels on site. The
system shall track the movement of workers going in and coming out of
these areas.
8.2
The system shall not require the deliberate action of the worker in order
that his presence and movement be sensed, such as close proximity
sensing using high frequency (HF) RFID technology, swiping of
magnetic strip ID cards. The system shall allow bi-directional tracking
at each access point and location tracking with one or more access
points to a location. This shall include the tracking of the worker’s last
known location to facilitate emergency rescue works.
8.3
The system shall also provide instant information update and allow
users to view the information using standard web browser: real-time
count of workers in one or more locations, trace entry and exit timings
of workers at access points, duration of stay at each locations for each
period for individual workers, the total time that is spent by workers of
each trade, additional information such as personnel name, ID, location
and entry time stamp.
February 2013 Edition
PS-B-82
February 2013 Edition
PS-B-83
ANNEX A-e
TEMPORARY HOUSING QUARTERS
1.1
The Contractor shall obtain Engineer’s approval before planning to
house workers within the boundary of the construction site.
1.2
The Contractor’s housing quarters shall comply with
Temporary Housing Quarters on Construction Sites.
1.3
The Contractor shall provide a separate canteen and provide meals for
all his workers on site and ensure that workers do not cook within the
housing quarters.
1.4
The Contractor shall appoint a quarter supervisor and a team of
housekeeping workers to maintain discipline, quarter rules and control
of illegal workers and housekeeping of all facilities including the
washing areas, toilets, bathing facilities, etc.
SS547,
February 2013 Edition
PS-B-84
ANNEX A-f
ENVIRONMENTAL CONSIDERATIONS
1.
GENERAL
1.1.
The Contractor shall be responsible for all impacts on the environment
which result from his construction activities. Such impacts include any
form of pollution and excessive noise affecting those outside the site
boundary.
1.2.
The Contractor shall also be responsible for ensuring the health of the
public who may be affected by his construction activities.
1.3.
The Contractor shall comply with all relevant Acts, Regulations and
Codes of Practice of Singapore including any amendments or reenactment thereto including but not limited to:







1.4.
Code of Practice on Environmental Control Officer;
Code of Practice on Environmental Health;
Code of Practice for Noise Control on Construction and
Demolition Sites
Code of Practice on Pollution Control;
Code of Practice on Surface Water Drainage;
Guide Book on Erosion and Sediment Control at Construction
Sites;
Guide Book on Prevention of Mosquito Breeding
Handbook of Scope of Works for Mosquito Control
The Contractor shall adopt
highlighted in the following:




the
best
environmental practices
Guidebook for Best Environmental Practices: Construction
Waste Management at LTA Sites;
Guidebook for Best Environment Practices: Noise Control at
LTA Sites;
Guidebook for Best Environmental Practices: Vector Control at
LTA Sites; and
Guidebook for Best Environmental Practices: Water Resource
Management at LTA Sites;
All other LTA environmental guidebooks.
February 2013 Edition
PS-B-85
The LTA guidebooks are available for viewing during Tender Stage. A
copy of the guidebooks will be issued to the Contractor upon the award
of the Contract.
1.5.
The Contractor shall also comply with the recommendations in the
Environmental Impact Assessment (EIA) report. In the event of
discrepancy between the EIA report and the other relevant authorities’
requirements, the more onerous requirements shall prevail.
1.6.
The Contractor shall submit site-specific management plans for the
following environmental aspects with reference to the relevant
regulations, CP, LTA environmental guidebooks and recommendations
stated in the EIA report. These management plans shall be submitted
to the Engineer for approval within 6 weeks of contract award:
1.7.
a)
Vector Control (shall include at minimum, requirements of rodent
control and mosquito control stipulated in Clause 7 of Annex A-f)
b)
Noise Control (shall include at minimum, requirements of noise
control stipulated in Clause 9 of Annex A-f)
c)
Water Pollution (shall include at minimum, requirements of ECM
stipulated in Clause 10 of Annex A-f)
The Contractor shall continuously review and revise these
management plans and shall be submitted at least 6 weeks prior to
commencement of work due to:




1.8.
Change in site location,
Change in construction phase,
Change in construction activities, or
As and when necessary.
The Contractor’s environmental team shall comprise of sufficient
workers solely for the purpose of environmental control and
maintenance only, whereby they shall not be employed to work as part
of the construction. These environmental workers shall wear a green
arm band for easy identification. The number of environmental workers
to be appointed on site shall comply with the value stated in the table
below, unless otherwise specified by the Engineer.
February 2013 Edition
PS-B-86
Contract Value
Number of Environmental workers to
be provided
S$20 At least 2
Above S$1 million to
million
Above S$20 million to S$50 At least 4
million
Above S$50 million
At least 6
1.9.
The ECO shall attend professional courses, trainings, workshops or
seminars recommended by the Engineer or published by NEA, PUB,
Institute of Engineers, Singapore (IES), other relevant authorities or
professional bodies. The ECO must ensure that the team of
environmental workers have adequate training and knowledge of their
job scope, and training records of these personnel are to be kept.
1.10.
The Engineer may require additional measures/ resources to be put in
place if current measures/ resources are deemed insufficient.
February 2013 Edition
PS-B-87
2.
SITE OFFICE ENERGY MANAGEMENT
2.1.
The Contractor shall reduce energy consumption of the attached site
offices by using energy-saving appliances and adopting energy
conserving practices.
Electrical Appliances
2.2.
Electrical appliances such as refrigerators and air conditioners shall be
procured from registered suppliers supplying registrable goods 1 affixed
with the Energy Label where the Energy Label shall be affixed only
after the NEA has issued the Certificate of Registration (COR) for the
model purchased.
2.3.
The appliance shall have the maximum amount of four ticks on its
Energy Label or have its energy efficient rating rated “Excellent”.
2.4.
Contractors are to ensure that air conditioners are serviced regularly at
a frequency of at least once a year to ensure the efficient running of
the air conditioner.
2.5.
Energy efficient lightings shall be used.
Water Efficient Products
2.6.
The Contractor is required to install water efficient products based on
the Mandatory Water Efficiency Labelling Scheme (Mandatory WELS)
as well as from the Voluntary Water Efficiency Labelling Scheme
(Voluntary WELS) implemented by PUB.
2.7.
Water efficient products used on site office such as basin taps &
mixers, low capacity flushing cisterns, urinal flush valves and shower
heads shall be rated “Excellent” or have three ticks on its water
efficiency label.
1
Registrable goods refer to goods listed under the Labeling Scheme as specified by NEA Energy
February 2013 Edition
PS-B-88
3.
SUBMISSION OF DATA
3.1.
The Contractor shall submit operating and pollution data for his
proposed plant and equipment when required by the Engineer.
3.2.
The Contractor shall also maintain and make available resource usage
data upon completion of the project. The data shall be in accordance
to the scope of assessment defined in Attachment A-6 or as specified
by the Engineer.
3.3.
The Contractor shall be responsible for the accuracy of the data and
auditable records shall be kept for verification or as requested by the
Engineer.
3.4.
The Contractor shall submit the data as part of the monthly SHE report
in the format stated in Attachment A-2.
4.
CLIMATIC AND TIDAL CONDITIONS
4.1.
In planning the control measures necessary to minimize environmental
pollution the Contractor shall take into account the climatic conditions
in Singapore. Detailed statistics can be obtained from the
Meteorological Service Division, NEA.
4.2.
Where the state of the tide would affect the control measures being
implemented to minimize environmental pollution the Contractor shall
make reference to the tidal information available from the Maritime and
Port Authority of Singapore.
5.
AIR POLLUTION
5.1.
The Contractor is required to include all necessary measures to
prevent and control any atmospheric pollution (in the form of smoke,
fumes, vapours, dust and other pollutants) on site. Accordingly, the
Contractor shall undertake the following but not limited to:
a) Within 6 weeks of contract award, the Contractor shall
submit a detailed proposal for air pollution control in the
format laid out under in Attachment A-7. The proposal shall
include inspection and maintenance regime for all fueloperated vehicles, machineries, power-packs, generators,
February 2013 Edition
PS-B-89
welding sets etc; and a list of dusty operations and their
corresponding control measures.
5.2.
b)
The Contractor shall ensure all air pollution control
requirements such as the concentration and rates of
omission of air pollutants shall be within legal limits.
c)
Adequately shield and/or arrest with water at point of impact
for all dusty operations.
d)
Vehicular access shall be paved with suitable materials such
as concrete, mill waste or hardcore.
e)
Cover all temporary stockpiles with canvas sheet
The Authority reserves the right to request for a newer machine or an
emission control device be installed if any machine or plant is deemed
to be producing excessive smoke.
February 2013 Edition
PS-B-90
6.
WATER AND LAND POLLUTION
6.1.
All activities involving repair, servicing, engine overhaul works etc.
Shall be carried out on a concreted area which shall be bunded or
scupper drains provided to channel all wastewater into the sewerage
system. Oil removers/interceptors shall be provided to treat oil waste
from workshop areas.
6.2.
Diesel drums and chemicals shall be stored under shelter within
concrete bund walls or in storage containers with good ventilation. Spill
trays shall be provided for all drums, plants and machinery and
potential pollutive substances used on site. Spill trays shall be regularly
maintained to prevent rain from washing out the pollutive substances.
6.3.
Emergency spill kits shall be provided on site in the event of any
chemical spillages. Emergency response team shall also be competent
in the use of these spill kits.
6.4.
Use of diesel on site shall also follow Clause 29.5 to 29.8 of Appendix
B.
7.
VECTOR CONTROL
7.1.
The Contractor is required to implement comprehensive vector
surveillance and control at the site, including all necessary measures to
prevent the site from becoming favourable to the breeding and
harbouring of vectors.
7.2.
The Contractor shall submit a Vector Control Plan with the reporting
format as specified in Attachment A-8. Chemicals to be used for
treatment are subject to the Engineer’s approval.
7.3.
The Contractor shall form an in-house pest control team to carry out
the vector surveillance and control work. All relevant trainings for
personnel involved in vector surveillance and control which include but
not limited to:

Joint ITE-NEA Certificate in Pest Management for ECO or inhouse pest control team supervisor;

Joint ITE-NEA Certificate in Pest Control for in-house pest
control team; and

Trainings on understanding vector-borne diseases, identifying
potential vector breeding grounds and measures to prevent the
propagation of vectors for general workers.
February 2013 Edition
PS-B-91
7.4.
The Contractor shall engage external Pest Control Operator (PCO) to
supplement the in-house vector surveillance and control.
7.5.
During the construction period, the Contractor or his hired vector
control company must maintain a site register which gives an up to
date account of surveillance and control work that has been carried
out. This register must be made readily available upon request.
7.6.
Any person found on site to be a carrier of or contracted with the
dengue/dengue haemorrhagic fever, malaria, Chikungunya or any
other vector-borne disease shall be removed from site. The Contractor
shall develop a response plan specifying the measures to be taken in
the event there is any person found on site to be a carrier of or
contracted with any vector-borne disease.
Mosquito Control
7.7.
Source reduction and effective drainage shall be the main forms of
mosquito control. Environmentally friendly applications such as the use
of Bacillus thuringiensis israelensis (Bti) shall be used as far as
possible to supplement source reduction.
7.8.
The in-house pest control team to shall carry out search and destroy
activities of any potential breeding grounds, especially after every
rainfall, using the “zoning method”.
a) The construction site shall be divided into a maximum of 7
zones for vector control particularly for mosquito control.
b) In-house pest control team shall carry out vector surveillance
and control activities in one zone per day.
c) As such, the team will effectively comb through the entire site
in a week, which is also the average time span for mosquito
larvae to turn into adults.
d) The Contractor shall ensure that its sub-contractors are
carrying out proper housekeeping at their individual work
zones to complement the in-house pest control team effort.
7.9.
The Contractor shall monitor the adult mosquito population using
ovitrap/gravitrap. The Contractor shall ensure that the site is in good
housekeeping condition for the ovitrap/gravitrap to be effective. The
results shall be submitted to the relevant agency when requested.
February 2013 Edition
PS-B-92
7.10.
Thermal fogging shall only be carried out when there is high population
of adult mosquitoes and/or when there are dengue outbreaks near the
construction site in accordance to the CP on Environmental Control
Officer.
7.11.
All site offices/containers must have a sloping/pitched roof installed
with the sides adequately shielded from rain. Containers for office or
storage purposes on site shall be sited on concrete paved ground with
perimeter drains for effective surface water drainage.
7.12.
Materials shall be stored under shelter with at least 60cm clearance
above levelled and well compacted ground. The Contractor shall
ensure that no puddles of water shall be formed on the ground by
using appropriate cover such as concrete paved, milled waste or steel
plates.
Rodent and Fly Control
7.13.
Use source reduction as the main form of rodent and fly control. Food
consumption and storage must be strictly restricted to designated
areas where lidded rubbish bins are available.
7.14.
Food must only be stored in rodent-proof storage containers/cabinets
with at least 60cm clearance above ground.
7.15.
Food waste should be contained in plastic bags before disposal into
bins. Food waste should be removed daily and the bins should be
cleaned regularly to prevent fly and rodent infestation.
7.16.
In-house pest control team should also look out for evidences of
rodents and their burrows during their rounds.
February 2013 Edition
PS-B-93
8.
WASTE MANAGEMENT
8.1.
An adequate number of bins of capacity not less than one cubic metre
shall be provided at the site for the storage of all inorganic waste such
as building debris, scrap metal, dust, dirt and litter.
8.2.
An adequate number of bins with air-tight covers of not less than 85
litres shall also be provided for the storage of organic waste on site,
especially at canteens and rest areas.
8.3.
All bins containing the site waste shall be cleared up as often as may
be necessary to prevent build-up in these bins. They shall be removed
from site and replaced / emptied once they have been filled.
8.4.
The Contractor shall carry out effective on-site sorting of construction
and demolition materials. For example, separate skip bins for
construction waste; wood waste; metal waste, etc. (to recover inert,
reusable and/or recycle-able portion shall be provided). These skip
bins shall be properly labeled.
8.5.
The system of on-site sorting and temporary storage of construction
and demolition materials shall include the following:
a) Metals shall be recovered for collection by recycling contractors
b) Cardboards and paper packaging shall be recovered, properly
stockpiled in dry and covered conditions to avoid cross
contamination by other construction and demolition materials.
c) Excavated materials shall be sorted to recover inert portions (e.g.
soil and crushed rocks) for re-use on site or disposal to designated
filling areas.
8.6.
All construction debris shall be disposed of at the gazetted
Government dumping grounds or at such other sites or locations as
shall be directed by NEA. Disposal of domestic refuse may be
arranged with the Environmental Public Health Division (EHD). The
Contractor shall pay all tipping fees at the gazetted dumping grounds.
8.7.
Contractors shall conduct housekeeping at least once a day to ensure
that all litter is cleared from site.
8.8.
Any waste listed in the Environmental Public Health Regulations (i.e.
General Waste and Toxic Waste) shall be disposed of by NEA
licensed waste operator/collector. Records of the disposal of these
wastes shall be kept for audit purposes.
February 2013 Edition
PS-B-94
9.
NOISE
9.1.
The Contractor shall ensure that excessive noise is avoided at all times
to protect nearby residents/ occupants and site personnel.
9.2.
The Contractor shall appoint an acoustic consultant subject to the
Engineer’s approval. The appointed consultant shall prepare on behalf
of the contractor a Noise Management Plan (NMP) which shall adopt
the reporting format as specified in ATTACHMENT A-9.
9.3.
The acoustic consultant shall develop this NMP making reference to
the EIA, where impacts and recommendations are described in the
Noise Impact Assessment, as mentioned in clause 1.5. The NMP shall
be site-specific to the contract in accordance to the respective
construction phases of work and implemented on site once approved.
The proposed NMP shall include but not limited to the required
information as follows:
a) Conduct a baseline survey of noise levels for one week on a
continuous basis to establish the background noise. The
survey period shall include at least a weekday and a
weekend.
b) Conduct a noise simulation of the existing environment.
c) Propose site-specific mitigation measures including but not
limited to acoustic enclosure(s) in accordance to the
respective construction phases.
d) Conduct noise simulation predicting noise levels at the
respective phases after installation of proposed mitigation
measures.
e) Cooperate with contractor to establish a public relation and
feedback management plan.
9.4.
The Noise Management Plan shall be submitted to the Engineer for
acceptance prior to the implementation of mitigation measures
including the use of full acoustic enclosures to the affected worksites.
9.5.
The Contractor shall monitor and measure the effectiveness of the
mitigation measures including full acoustic enclosures throughout the
construction duration of the project. If the noise levels recorded are
found to breach the permissible limits set out by the relevant authority,
the Contractor shall review the mitigation measures and re-submit the
Noise Management Plan to the Engineer for approval.
9.6.
The Contractor shall note that the construction equipment and
methods of work which cause excessive noise will not be allowed to be
used on site. The Engineer has the discretion to require the Contractor
February 2013 Edition
PS-B-95
to take necessary precautions, whether specified herein or not, to
maintain or to repair such construction equipment or to instruct their
removal from site when it is determined that the noise level generated
from the construction works fails to comply with regulations and
standards as stated in this annex. Machinery and equipment shall be
enhanced acoustically as directed by the Engineer.
9.7.
It is the Contractor’s responsibility to ensure that the
machine/equipment is maintained and operating to the standards
indicated in their respective specifications.
9.8.
Sensitive buildings shall be identified and mitigation measures
implemented before work commences. The Contractor shall take all
practicable steps as outlined in this annex as well as SS CP 49 to
reduce noise arising from site activities to the minimum. These steps
shall include, but not limited to:
a) The Contractor shall note that all construction works, which
generate substantial noise, shall not be carried out during the
school examination periods.
b) The Contractor shall note that the Engineer has the right to give
instructions to stop construction work activities temporarily during
school examination periods, near to any educational institutes or
schools.
c)
The Contractor shall obtain an official confirmation of the
examination schedules from the School Administrator including
revision of schedules.
d) The Contractor shall schedule his work programme accordingly so
as to avoid delay. Any claim for extension of time will not be
permitted.
e) The Contractor may be directed by the Engineer to suspend works
immediately due to public feedbacks of noisy activities arising from
the Works. The Contractor shall take adequate measures to
protect all uncompleted works. Where the relevant works are
temporary suspended under this clause, the Contractor shall deem
to have included such incidents in his tender accordingly. The
Contractor shall not be entitled to any extension of time and any
loss and expenses incurred arising from such temporary
suspension of the works.
f)
All machines in intermittent use shall be shut down or throttled
down to a minimum in the intervening periods between works.
February 2013 Edition
PS-B-96
g) Care shall be taken when loading or unloading vehicles,
dismantling scaffolding or moving materials to reduce impact
noises. Access to the working areas shall be such as to ensure a
minimum disturbance to persons in occupied buildings. The
Contractor shall not execute any of the works or carry out
maintenance of construction plant in such a manner as to cause
nuisance unless the work is absolutely necessary for the saving of
life of property or for the safety of the works in which case the
Contractor shall immediately advise the Engineer.
Noise Measurement
9.9.
The Contractor shall provide all necessary competent and qualified
personnel and suitable equipment for all measurements and
recordings of noise levels.
9.10.
Locations of such noise measurements shall be at buildings likely to be
affected by the construction works or as directed by the Engineer.
9.11.
At any time during the contract period as directed by the Engineer and
after the project is completed and opened to traffic, the noise survey or
part of it shall be repeated to establish any change in the noise levels.
9.12.
Noise measurements will be required for buildings within 150m from
the boundary of the construction site. Noise levels at buildings shall be
measured 1m away from the nearest façade of the building facing the
site and readings shall be taken from at least 3 different levels (1 st
storey, intermediate storey and top storey) or as directed by the
Engineer. Noise levels may also be required at locations other than
buildings.
9.13.
Noise measurements are to be taken at least 1.5m above grade
without any obstructions/obstacles in the direction of measurement.
9.14.
The Contractor shall install real time “live” monitoring devices to
monitor the noise levels for the entire construction period. This system
shall be equipped with a SMS “alert” feature when allowable limits are
exceeded. Access to the system shall be made available to the
Engineer.
9.15.
In addition, the Contractor shall monitor the noise levels for the whole
duration of noisy activities, night works and works carried out over the
weekends using portable noise meters. The portable noise meter shall
be made readily available for ad hoc monitoring/ upon request.
February 2013 Edition
PS-B-97
9.16.
All machinery and equipment on site must have both the noise
emission levels of: a) engine noise and b) operational noise under
normal operating conditions, clearly indicated on a weather-proof
sticker pasted at the side of the machinery. Such emission levels
should be measured at source (1m to 3m away)
Noise Control
9.17.
The Contractor shall while preparing the programme for the Works,
take into account the non-working restriction and the site layout in
order to minimise noise as far as possible including but not limited to
considering using materials and other intermediate stages of
construction as noise barriers, etc.
9.18.
While planning for the Works, the Contractor shall review the working
hours and consider the effects of construction noise on personnel
working in or around the site as well as the neighbourhood within
proximity of the site. The Contractor shall take into account the nature
of the land use in the area, duration of works and the effect of
lengthening works period or other nuisances which may affect the
neighbourhood.
9.19.
Only sound-reduced machinery and equipment (as per manufacturer’s
specifications) are allowed to be used on site. Examples include:


All compressors, generators, welding sets etc. shall be of sound
reduced models fitted with properly lined and sealed acoustic
covers which shall be kept closed whenever the machines are in
use and all ancillary pneumatic percussive tools shall be fitted
with mufflers or silencers of the type recommended by the
manufacturer.
All pile driving shall be carried out by a recognised noise
reducing system. Rotary drills and busters actuated by hydraulic
or electrical power shall, where practicable, be used for
excavating hard material. Noisy construction plant such as
cement batching plant, shall be sited as far away as possible
from occupied buildings with noise barriers erected, specifying
the proposed location for the noise barriers.
9.20.
Machinery and equipment deemed to be noisy shall be enhanced
acoustically as directed by the Engineer.
9.21.
The Contractor shall only use power supplied by PowerGrid. Where
this is not possible, the Engineer may direct that sound-reduced
generator sets housed in acoustic sheds be used.
February 2013 Edition
PS-B-98
9.22.
Full length noise barriers must be at least 10m in height or break the
line of sight from receiver to noise source. Such noise barriers must be
erected at site boundaries facing any residential/sensitive premises
before any work commences.
9.23.
Slurry treatment plants must be housed within a full acoustic enclosure
and slurry removal works will only be carried out during daytime.
Where a full enclosure is not possible, an acoustic enclosure with only
one opened face oriented away from any residential/ sensitive
premises can be considered. Pipes transporting bentonite must be
shielded by acoustic materials especially at bends.
9.24.
All launch shafts must be housed within a full acoustic enclosure taking
into considerations all safety and health precautions.
9.25.
Where possible, all permanent work areas must be housed in an
acoustic enclosure with the only opening oriented away from any
residential/sensitive premises. This enclosure must be of sufficient
height to cater for machinery working within the enclosure.
9.26.
The proposed full acoustic enclosures shall achieve noise level
reduction by at least 10 db(A) when measured outside the noise
enclosure and ensure that the noise level generated during
construction works are within the permissible limits set out by the
relevant authority. The full acoustic enclosures shall also be noncombustible and lined with absorptive material.
9.27.
The effectiveness of acoustical performance of the full enclosure is
dependent on the material, orientation, dimensions and shapes, hence
the above factors shall be taken into consideration in the design of full
enclosures so that noise level can be reduced by at least 10 db(A)
when measured outside the noise enclosure. The Contractor shall also
specify details of the above factors in the Noise Management Plan
(Attachment A-9) and submit to the Engineer for acceptance.
9.28.
The Contractor shall take into account during design stage to avoid
holes/gaps, etc. through or beneath the proposed noise barriers or full
acoustic noise enclosures as these will impact on the effectiveness of
acoustic performance. Any damages to the noise barriers or acoustic
enclosures during construction resulting in holes/gaps, etc. shall be
repaired immediately.
9.29.
The full enclosure shall be designed to provide adequate space to
allow for plants and machineries to manoeuvre within the enclosure in
order to facilitate the soil disposal, construction materials delivery and
other construction activities at all times.
February 2013 Edition
PS-B-99
9.30.
Non combustible materials such as steel is preferred for construction of
the full enclosure structure and all construction materials used for the
construction of full enclosures shall comply with requirements stated in
the latest Fire Safety Act and Fire Code issued by Singapore Civil
Defence Force (SCDF) and Fire Safety and Shelter Department
(FSSD).
9.31.
The layout of the full enclosures shall be designed to facilitate easy
means of evacuation during emergencies with exit points clearly
marked.
9.32.
Highly flammable substances shall not be stored within the full
enclosures.
9.33.
No piling works will be allowed from 10pm to 7am unless both
machinery and method are of a quiet nature (as substantiated by
manufacturer’s specifications and measured noise levels from a trial
test where representatives from both contractor and Engineer are
present).
9.34.
Noisy activities must be barricaded with portable acoustic panels.
9.35.
Preparation for traffic diversion work must be carried out during the day
and only the actual diversion will be allowed to carry out at night.
Where activities have to be carried out at night (as approved by the
Engineer), portable acoustic barriers must be set up in advance of
such works. Residents must also be informed in advance of traffic
diversion works.
9.36.
For milling and patching works to be carried out at night, portable
acoustic panels/enclosure must be deployed before commencement of
such works.
9.37.
The Contractor shall commit sufficient resources into public relation
works to establish good rapport with the community. The Contractor
shall engage stakeholders and the community before commencement
of works and regularly throughout the work duration. Such activities
shall be subject to the Engineer’s approval.
9.38.
The Contractor shall notify the Engineer immediately and keep a copy
of all fines/complaints/ stop work orders received.
February 2013 Edition
PS-B-100
10.
EARTH CONTROL MEASURES
GENERAL
10.1.
The Contractor shall be responsible for preventing silt from being
washed into public drains by implementing an Earth Control Measures
(ECM) for the construction site.
10.2.
In his tender submission, the Contractor shall submit his schematic
ECM plans of the construction site for the contract duration taking into
account the different phases of construction activities. He shall also
provide the name of the Qualified Erosion Control Professional (QECP)
who will be endorsing the ECM plan after the tender is awarded.
10.3.
These schematic ECM plans shall make the Contractor aware of the
ECM requirements and the cost to implement an effective ECM.
Notwithstanding the submission of these schematic ECM plans the
Contractor shall deem to have separately price for the ECM in the
contract sum.
10.4.
Before construction works commence on site, the Contractor shall
engage a Qualified Erosion Control Professional (QECP) to plan and
design the ECM, and he shall install the ECM according to the QECP’s
design.
10.5.
The Contractor shall submit the ECM proposal duly endorsed by his
QECP to the Engineer for comments. The comments shall be
addressed before submitting to the relevant Authority for records. The
ECM proposal shall consist and follow the format seen in Attachment
A-10.
10.6.
The Contractor shall also ensure that a Certificate of Clearance is
obtained from PUB and the ECM be installed according to the
endorsed plan before commencement of works.
10.7.
During construction, the Contractor shall ensure the following
measures are implemented on site:
Erosion Control Measures
a) Minimize the formation of bare surfaces;
b)
Sequence and schedule of the earthworks / demolition works in
stages and progressively with the subsequent construction
activities and building works;
February 2013 Edition
PS-B-101
c)
Minimise site disturbance by keeping site clearance works to a
minimum by retaining as much of the existing vegetation as
possible;
d)
Pave up the bare surfaces and all construction access by
concrete or milled waste or other materials deemed suitable by
the Engineer;
e)
Protect the bare slopes with close-turfing, concrete grouting,
erosion control blanket or canvas;
f)
Protect the earth stockpiles with erosion control blanket or
canvas;
g)
Restore ground cover over disturbed areas, which are or have
become bare, as soon as possible;
h)
Trench excavation work shall be carried out in sequence with the
progress of permanent works to minimise impact on the
environment;
i)
The Contractor shall identify the exposed bare surfaces and
slopes for turfing or paving operation before the start of each
phase of the project.
j)
The Contractor shall implement the appropriate covers in order to
minimise the extent of any exposed earth surfaces:
 Vegetation is retained within the site
 Bare surface not covered by vegetation, is covered by erosion
control blanket
 Hardcore used to prevent erosion
 Paving used to prevent erosion
Sediment Control Measures
a) Minimum C7 precast channel or concrete-lined cut-off drains
within the construction sites.
b)
Silt fences shall be erected in front and along the cut-off drain. It
shall be embedded firmly into the ground and constructed from an
approved geotextile filter fabric to capture the sediment from
storm water runoff. The sediment built-up behind the silt fence
must be regularly removed.
c)
Intermediate silt traps of suitable size shall be installed at regular
intervals along the perimeter lined cut-off drain. Within the
February 2013 Edition
PS-B-102
intermediate silt traps, suitable geotextile filter fabric or
equivalents shall be installed across the full depth and width
and/or coagulation-assistance materials shall be placed. Silt traps
relying primarily on hardcore, granite chips or sands for filtration
are not acceptable.
d)
The bio ball filtration system and/or other appropriate methods as
approved by Engineer shall be used as part of the filtration
system to control sediment.
e)
Sedimentation basins or any other sediment filtering or settling
system or storage tanks is to be provided at any point where
storm water leaves the site and enters the public storm water
drainage system. It shall be minimum concrete lined and
designed with a storage capacity to cater for the rainfall intensity
based on design return period of 1 in 5 years storm.
f)
Suitable water treatment systems installed to treat all silty
discharge before the discharge points into public drain.
g)
Water treatment system should be equipped with a CCTV and a
continuous, real-time, “live” monitoring of turbidity and TSS before
any final discharge point. This system should consist of a SMS
"alert" feature when allowable limits are exceeded. The
Contractor shall also submit the monitoring system proposal to
the Engineer for acceptance. Access to the system shall be made
available to the Engineer.
10.8.
In addition, the Contractor shall monitor the TSS value of discharged
water using a portable TSS meter. This reading shall be compared
against the value provided by the sensor of the treatment plant to
determine if it is working properly. The portable TSS meter shall be
made available for ad hoc monitoring/ upon request.
10.9.
The Contractor shall ensure all excavated materials and spoils are
either removed from site by the end of the day.
10.10.
The Contractor shall maintain the ECM for the whole duration of the
contract to ensure that it is effective at all times. Proper records
detailing the maintenance works, supported by dated photographs,
shall be kept by the Contractor for verification.
10.11.
The Contractor shall not remove the ECM until all works are completed
and upon the advice of his QECP.
February 2013 Edition
PS-B-103
11.
TURBIDITY CURTAIN
GENERAL
11.1
For water bodies which are raw water sources for potable water and/or
need for recreational purposes, high turbidity of the water in the water
body will affect the treatment costs for potable water and/or the
recreational use.
11.2
For works in such water bodies, turbidity curtain shall be installed. The
works including the design, fabrication, and installation of the primary
and secondary turbidity curtains shall ensure that the turbidity of water
in the water bodies around the works shall not exceed the pre-existing
levels or 50mg/l, whichever is greater.
11.3
The works in this Specification consists of all construction operations
relating to the turbidity curtain. These construction operations include,
but are not necessarily limited to the following:
(a)
Design, manufacture, install and maintain primary and, if
necessary, secondary turbidity curtain(s) around the areas of
marine construction, either across the water body to enclose the
entire work area, or individual curtains within /around /along the
water body to enclose work areas;
(b)
Curtain(s) shall remain in place during excavation, installation of
piles, foundations etc and backfilling works. Maintain the
curtain(s) in good working condition for the duration of
construction works. The turbidity curtain(s) shall not be removed
until all operations have been completed and the water quality
within the confines of the turbidity curtain meets the standards.
Install as many turbidity curtains as are necessary to meet the
water quality standards; and
(c)
The primary turbidity curtain shall be installed as specified. The
secondary curtain(s) shall be installed as and when necessary
to meet the requirements of these specifications.
February 2013 Edition
PS-B-104
11.4
The purpose of the curtain(s) is to meet the water quality standards by
minimizing the transport of turbidity and other constituents generated
by construction activities in the water body. This includes excavation,
wet recovery of micro tunnel equipment, bentonite slurry use, tremie
concrete operations, backfill and all other construction activities
conducted in or near the water body. The turbidity curtain system shall
provide sufficient residence time to allow soil or bentonite slurry
particles to fall out of suspension, reduce turbidity, and meet the water
quality standards.
11.5
Since it will require time to install additional, secondary turbidity
curtain(s), the contractor shall take turbidity measurements at specified
distances from the edge of each outermost installed curtain to allow
time to install secondary curtain(s) before the turbidity limit is
exceeded.
11.6
Develop a plan to monitor the turbidity throughout the water column at
three distances from the edge of each outermost installed turbidity
curtain. Make initial measurements at a distance of 30m, 60m, and
100m from the edge of the primary curtain with turbidity measured at
four depths in the water column, then adjust distance and depth as
appropriate based on direction of the plume, plume velocity, and the
change in turbidity with distance from the work area. Initial
measurement shall be made three times a week.
11.7
Have the approved design of secondary curtain(s) available before
starting the excavation. Furthermore, for each area surrounded by a
primary turbidity curtain, have at least one secondary curtain available
onsite and ready for installation after the turbidity limit is exceeded at a
distance of 60m from the edge of the installed curtain.
11.8
The above requirements shall be met before construction activities
begin.
SUBMISSION
11.9
Prior to manufacturing the primary and secondary curtain(s), submit
the details of the primary and secondary curtain fabrication including:
(a)
Material certifications and data on physical properties and
ultraviolet resistance of permeable and impermeable curtain
fabrics;
(b)
Shop Drawings for curtain and appurtenances;
February 2013 Edition
PS-B-105
(c)
Design analyses and calculations;
(d)
Installation plan and configuration;
(e)
Flotation and anchoring plan;
(f)
Maintenance plan;
(g)
Methods for providing entry and exit through curtain(s) as
necessary for construction of all offshore work;
(h)
Manufacturer/Supplier qualifications; and
(i)
Profile of water body bed along curtain alignments.
CURTAIN FABRIC
11.10
Primary Turbidity Curtain:
11.10.1
Curtain Section: Curtain shall be a combination of permeable or
impermeable materials. Curtain shall be heavy-weight, flexible, nylonreinforced, polypropylene filter fabric, or flexible nylon reinforced
thermoplastic as necessary to control turbidity created during
construction, sewn into panels, hemmed, and edges finished to
prevent raveling.
11.11
Secondary turbidity curtain(s):
11.11.1
Curtain Section: As hereinbefore specified for primary curtain or as
necessary to control turbidity in the vicinity of the construction.
11.12
Connectors
11.12.1
Provide the curtain with appropriate galvanized steel snap hooks and
rings for connecting load lines.
11.13
Flotation
11.13.1
Provide a sufficient number of expanded polystyrene floats sufficient to
keep the top of the curtain above the water surface with a minimum of
150mm of freeboard at all times.
February 2013 Edition
PS-B-106
11.14
Ballast and Anchorage
11.14.1
Each curtain shall be equipped with a galvanized steel chain integrated
into the bottom of the fabric to keep the curtain vertical and in contact
with bottom of the water body. Each curtain shall also be anchored to
the water body bed to prevent excessive displacement from wind,
waves and currents. The ballast, anchorage, and flotation shall be
designed by the curtain manufacturer for the wind and wave
conditions, bottom profile, and changes in water level. Anchors shall be
spaced as necessary to secure each curtain and keep it stable in all
conditions. Anchorage and/or flotation shall be designed to keep the
top of each curtain above the water surface when subjected to wind or
wave forces.
11.14.2
Design, provide, and install shore anchoring where each curtain is
attached to the shoreline. Design, provide, and install marine
anchorages as necessary to secure each curtain.
11.15
Load Line
11.15.1
Fit the curtain(s) with galvanized wire rope with vinyl coating of
sufficient strength to resist all internal and external loading.
11.16
Oil Booms
11.16.1
Oil booms, skimming devices, and pollution containment devices shall
be provided as and when necessary to prevent contamination of the
water.
11.17
Preinstallation Profile
11.17.1
Prior to manufacturing the curtain(s), develop a profile of the water
body bed for each curtain location. Verify the depth of curtain,
especially if the curtain is to be anchored to the shoreline to confirm
the bottom profile at the exact location of curtain placement.
11.17.2
The curtain manufacturer shall use this information to dimension the
curtain(s) with allowances for water level changes.
11.18
Curtain Design
11.18.1
The curtain and oil boom systems shall consist of a primary
impermeable curtain, plus secondary curtain(s) as necessary to meet
the water quality standards specified.
February 2013 Edition
PS-B-107
11.18.2
Each primary curtain shall have an impervious section that is full depth
and is in contact with the bottom of the water body.
11.18.3
Each secondary curtain, if used, shall consist of an impervious section
that extend up to a height as necessary to control turbidity.
11.18.4
Design each curtain for a useful life of at least the duration of the
project.
11.18.5
Design curtain system for all temperature, wind, wave and current
conditions at the project site as well as the anticipated varying water
levels.
11.18.6
Design curtain system to meet the water quality standards.
11.19
Curtain Fabrication
11.19.1
Each curtain shall be manufactured / supplied by a specialty
subcontractor with experience in turbidity curtain design and
fabrication.
11.19.2
Design curtain to accommodate expected water level variations. If
necessary, provide each curtain with additional longitudinal panels that
can be added when the water level rises and with removable panels
that can be pulled out when the water level drops.
11.19.3
Access Gate: Provide means for movement of equipment or materials
through the curtain as may be required for operations.
11.20
Primary Curtain Installation
11.20.1
The exact locations shall provide sufficient working space compatible
with the construction methods and also within the work limits of the
contract. Install primary curtain before commencement of any works in
or around the water.
11.20.2
Deploy the curtains
recommendations.
11.21
Secondary Curtain Installation
11.21.1
If the turbidity measured 60m from the primary curtain exceeds the
water quality standards, install secondary curtain(s).
in
conformance
with
the
manufacturer's
February 2013 Edition
PS-B-108
11.21.2
Have the assembled curtain materials on site and install secondary
curtain within 2 days of the day the turbidity exceeds the water quality
standard.
11.22
Maintenance
11.22.1
Maintain, repair, and adjust the curtains as necessary throughout all
construction activities.
11.22.2
Visually inspect the turbidity curtain(s) at least weekly. A written copy
of the inspection report shall be submitted.
11.23
Curtain Removal
11.23.1
At the completion of all construction activities remove all turbidity
curtains in their entirety. This includes all anchoring devices.
11.23.2
Do not remove the curtains until the water inside the enclosed area
meets the water quality standard.
11.23.3
Obtain approval before removing curtains.
February 2013 Edition
kWh
Units
kg
5 Pre-Fabricated Concrete (Compulsory to provide in units of kg)
Concrete content
Steel content
6 Steel
Fabric Reinforcement
Bar Reinforcement
e.g: 1:1:6 Cement:Lime:Sand Mix
4 Ready Mixed Concrete
(Indicate Grade below and If cement content are replaced by fly
ash or Blast Furnance Slag, please indicate)
Concrete (Grade 20)
Concrete (Grade 25)
Concrete (Grade 30)
Concrete (Grade 35)
Concrete (Grade 40)
Concrete (Grade 50)
If using grades not listed, please indicate here
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
2 Asphalt
3 Mortar (Indicate mix ratio below)
Litres
Units
Diesel Litres
Biodiesel kg
Biodiesel
Petrol Litres
Diesel Litres
1 Water
If using alternative fuel, please indicate here:
Materials
2 Fuel
1 Grid Electricity
Machineries
If using alternative fuel, please indicate here:
4 Fuel
kg
Litres
2 Water
3 Refrigerant (Indicate type e.g. R-422a)
kWh
Units
1 Grid Electricity
Offices
Jan
Jan
Feb
Feb
Mar
Mar
May
Apr
May
OPERATION
Apr
ADMINISTRATION
Jun
Jun
Jul
Jul
Aug
Aug
Sep
Sep
Oct
Oct
Nov
Nov
Dec
Dec
Comments
Comments
PS-B-109
ATTACHMENT A-6
Carbon Assets Inventory Form
February 2013 Edition
PS-B-110
ATTACHMENT A-7
(Page 1 of 2)
Air Pollution Control Plan
The Contractor shall follow the following reporting format for the submission of the
Air Pollution Control Plan. The proposed plan shall include but not limited to the
required information as follows.
1
Project Information
 Project title and description
2
Air Sensitive Receivers
This section shall include a map highlighting the locations and proximity of
potential air sensitive receivers to the sources of air pollution from site.
3
Air Pollution Sources & Controls
a. List of all diesel-powered machineries including generators, cranes, piling
machines etc., and the respective numbers used on site.
b. List of all vehicles including dump trucks, lorry cranes etc., and the
respective numbers used on site.
c. List of all other air pollutants and dust producing activities such as welding,
vehicles travelling on site, operation of STP, stockpiling, boring and
hacking activities etc.
d. Describe air pollution control measures for the above mentioned
machineries, vehicles and activities. Control measures shall be provided
and implemented with the following order of hierarchy:

Elimination method (shall be used whenever possible)

Substitution

Engineering
February 2013 Edition
PS-B-111
ATTACHMENT A-7
(Page 2 of 2)

Administrative (shall be used only when the above methods are not
reasonably practicable to implement or used in existence with the
above methods)
e. Include specifications, where applicable, for engineering methods
recommended. For example, type and size of dust netting, dust eating
machines etc.
February 2013 Edition
PS-B-112
ATTACHMENT A-8
(Page 1 of 2)
Vector Control Plan
The Contractor shall follow the following reporting format for the submission of the
Vector Control Plan. The proposed plan shall include but not limited to the required
information as follows.
1
2
3
Revision Page

List of revision

Summary of revision
Project Information

Project title and description

Project location and area

Additional information on whether the site is located in a dengue cluster or
Malaria Receptive Area (MRA)
Site Layout Plan (with “zoning method”)
a. Indicate vulnerable or potential breeding grounds with some descriptions
b. Indicate breeding grounds found with some descriptions
4
Vector Control Personnel
a. In-house pest control team
 Organisation chart
 Duty roster for surveillance and control activities which specifies day,
time, zone, assigned worker and activities to be carried out
b. Pest Control Operator
 Details of Pest Control Company
 Pest Control Company track record
 Valid NEA license and certificate
5
Vector Surveillance and Control
 This section shall include, at minimum, the surveillance and control
measures as specified in Clause 4 of Annex A-f.
 Vector surveillance and control checklist.
The Contractor may use the relevant form or checklist found in the Guide
Book on Prevention of Mosquito Breeding.
February 2013 Edition
PS-B-113
ATTACHMENT A-8
(Page 2 of 2)
6
Response Plan
 This section shall specify the measures to be taken in the event there is
any person found on site to be a carrier of or contracted with any vectorborne disease.
7
Training
a. All relevant trainings for personnel involved in vector surveillance and
control which include but not limited to:
 Joint ITE-NEA Certificate in Pest Management for ECO or in-house
pest control team supervisor;
 Joint ITE-NEA Certificate in Pest Control for in-house pest control team;
and
 Trainings on understanding vector-borne diseases, identifying potential
vector breeding grounds and measures to prevent the propagation of
vectors for general workers.
b. Dengue awareness or other vector awareness campaign to be conducted
on site (indicating the proposed date)
February 2013 Edition
PS-B-114
ATTACHMENT A-9
(Page 1 of 5)
Noise Management Plan
The Contractor shall follow the following reporting format for the submission of the
Noise Management Plan. The proposed plan shall include but not limited to the
required information as follows.
1
Revision Page
 List of revision
 Summary of revision
2
Project Information



3
Provide a brief write up on the contract: locations of station (top down/bottom
up construction), alignment of tunnel (TBM/cut and cover) and locations of
launch shafts/escape shafts
Attach a map indicating site location, tunnel alignment and the surrounding
buildings at least within 150m from the boundary of the construction site
Provide information on the types of buildings (whether residential/noise
sensitive/business etc) and their height (2 storey shop houses/ 20 storey
office buildings/ 12 storey apartment)
Work Schedule

4
Provide a project work schedule (e.g. Gantt chart) including a breakdown on
the various construction phases and their commencement date
Background





Attach results of the pre-construction noise readings carried out continuously
over 1 full week using charts for easy reference
Charts of the relevant Leqs should be shown separately
The actual readings can be attached in the appendix
Using the above, the recommended Leqs readings for various time zones
should be stated for approval as the ambient noise levels. Kindly note that the
Leqs readings should be those that appear most frequently during the
particular time zone and not the highest Leq recorded.
The time zones should be: 7am to 7pm (1 recommended ambient noise
level); 7pm to 10pm (1 recommended ambient noise level); 10pm to 12am (1
recommended noise level); 12am to 2am (1 recommended noise level); 2am
to 7am (at least 1 recommended noise level), therefore at least 5 ambient
noise levels should be recommended for every 24 hours
February 2013 Edition
PS-B-115
ATTACHMENT A-9
(Page 2 of 5)
5
Noise Simulation


6
Present and discuss noise simulation results in accordance to the respective
construction phases
Results should be presented in the form of noise simulation maps
Locations of Noise meters


7
Attach a map with photos of the noise meters showing its fixed location and
the orientation of the microphones
Attached calibration certificates of the noise meters used
Noise Mitigation Measures for Machinery and Equipment







List the machinery and equipment to be brought on site to be used
Evidence that machinery and equipment to be used are sound-reduced
models/ or operating using a quieter method from the manufacturers
For all machinery and equipment on site, clearly indicate the noise emission
levels of the machinery’s engine noise and operating noise measured at
source (1m to 3m away).
Using the worst case scenario (machinery and equipment at the shortest
possible distance from the nearest affected building), calculate and indicate
the estimated noise levels at the receiver’s end using the formula in the SS
CP49- Code of Practice for Noise Control on Construction and Demolition
Sites.
Specify noise mitigation measures (with details such as material, orientation,
dimensions and shapes of acoustic enclosures) for each machinery and
equipment that are likely to cause excessive noise at the receiver’s end
according to the respective construction phases.
After implementation of noise mitigation measures, clearly indicate again the
noise emission levels of the machinery’s noise and operating noise measured
at source
Example of entry under this section:
February 2013 Edition
PS-B-116
ATTACHMENT A-9
(Page 3 of 5)
Machinery/
Plant/
Equipment
Sound
Reduc
ed?
Remark
s
Noise
emission
levels
at
source
(engine/op
erational)
dBA
Bored
piling
Model
XXX
N
No
sound
reduce
d model
availabl
e
80/100
Shorte
st Dist
to
receive
r (worst
case
scenari
o)
30
N
No
sound
reduce
d model
availabl
e
83/104
30
Generator
set
(PowerGri
d supply
not ready
for now)
Y
55
30
Hacking
tool model
YYY
N
Yes,
please
see
appendi
x
for
manufa
cturer’s
specific
ations
No
sound
reduce
d
equipm
ent
availabl
e
120
30
Bored
Piling
Model
YYY
rig
rig
Estimated
noise levels
at receiver’s
end
Mitigation
required?
Measures
Final Noise
Emission
Levels
at
source
(engine/oper
ational) dBA
Yes, acoustic panels
will be used to
enclose the engine. In
addition,
portable
noise barriers will be
set up to shield the
operation. Please see
Appendix for photos
of
mitigation
measures.
Yes, acoustic panels
will be used to
enclose the engine. In
addition,
coring
bucket of the rig will
be modified to refrain
from
“shaking”:
Please see Appendix
for
photos
of
mitigation measures.
No but low humming
noise may be irritating
to residents at night
so generator set will
be enclosed within a
noise
enclosure.
Please see Appendix
for
photo
of
enclosure.
Hacking to be carried
out
within
an
enclosure.
No
hacking works will be
allowed during the
evenings onwards till
the next morning and
during weekends.
February 2013 Edition
PS-B-117
ATTACHMENT A-9
(Page 4 of 5)
8
Noise Mitigation Measures for Noisy Areas/Processes



Attach site layout indicating locations of permanent acoustic enclosures (for
slurry treatment plant, launch shafts, permanent work areas) and locations of
noise barriers, incorporating recommendations by the appointed acoustic
consultant.
Site layout should also indicate locations of site offices/ canteen, silo, wash
bay, workers’ rest area, rebar fabrication area and location of vehicular
access.
Example of entry under this section:
Work
Processes
/
Noisy
area
Likely to cause
nuisance
to
nearby residents?
Noise
emission
levels
at
source
if
applicable
(dBA)
Dist to
receive
r
Rebar
fabrication
yard
Yes,
especially
during handling of
rebar
76-78
50
Permanen
t
Works
Area
Yes, machinery
movement
80-83
30
Washing
Bay
Yes,
especially
during the night
70-72
30
Slurry
Treatment
Plant
Yes, desanding
operation is noisy
85-90
40
Estimated
noise levels
at receiver’s
end
Mitigation Measures
Final Noise
Emission
Levels
at
source
(engine/oper
ational) dBA
To be sited at the
furthest end from
residences,
please
refer to site layout
To be enclosed within
an acoustic enclosure
as specified in LTA’s
GS.
Please
see
Appendix for photos
of
acoustic
enclosures
Noise barriers to be
installed on hoarding
next to the washing
bay.
Please
see
Appendix for photo of
noise
barrier
at
washing bay
To be situated within
a full acoustic barrier
as per LTA’s GS.
Please
refer
to
Appendix for photo.
February 2013 Edition
PS-B-118
ATTACHMENT A-9
(Page 5 of 5)
9
Public Relation Efforts




10
Indicate names and contact details of Public Relations Officer and list of
Personnel that will manage feedback and investigative works
Attach samples of circulars/publications/notice that will be distributed to
residents/stakeholders
Indicate frequency of meet-the-residents sessions with specific dates,
venues, invited guests and the target audience
Describe the intended proceedings for each of these session
Feedback Management


Upon receiving feedback, contractor shall provide information with regards to
works carried out during the period of time where the complaint was lodged.
This information shall be disseminated to the Engineer as well as to Safety
Division
PRO shall follow up with complainant and the outcome of the engagement
shall be reported back to the Engineer as well as to Safety Division
February 2013 Edition
PS-B-119
ATTACHMENT A-10
(Page 1 of 3)
Earth Control Measures Plan
The Contractor shall follow the following reporting format for the submission of the
Earth Control Measures Plan. The proposed plan shall include but not limited to the
required information as follows:
1
2
Revision Page

List of revision

Summary of revision
Project Information

Name and address of site occupier;

Name and address of QECP for the project;

Name of QECP and ECO;

Project title and description;

Site area and project duration;

Sequence of work, type and duration for each phase of construction
activities.
February 2013 Edition
PS-B-120
ATTACHMENT A-10
(Page 2 of 3)
3
Detailed Information for ECM Plan
This section shall concisely provide the erosion and sediment control measures
to be used, taking into consideration of all potential controls described in ANNEX
A-F Clause 10.7. It should provide a layout plan showing the following
information:

Key/location plan showing the proposed site in relation to main roads and
including any special landmarks or features;

Boundary line of proposed development;

Proposed phasing of work;

Proposed outlet discharge points, CCTVs, TSS monitoring systems;

Direction of surface runoffs into the proposed internal temporary drains;

Direction of flow for all existing and proposed drains;

Direction of flow for runoffs upstream and adjacent to the site and clearly
indicate how they are effectively drained or diverted away

Description and location of each proposed erosion and sediment control
measures, including silt fence, bund walls, perimeter drains, internal drains,
sedimentation tanks, treatment system, CCTVs, TSS monitoring system,
stockpile area, vehicle access route, washbays etc. Specifications and
catalogs must be submitted.

The area of bare earth surfaces, where the surface runoff is expected, shall
be indicated in m2 on the plan. Areas where bare earth surfaces are covered
with concrete, milled waste, erosion control blankets, etc. shall be indicated in
m2 on the plan as well.
February 2013 Edition
PS-B-121
ATTACHMENT A-10
(Page 3 of 3)
4
ECM Calculations

Calculations of soil loss/ sediment yield;

Hydraulic calculations for the proposed temporary drainage system, silt traps,
sedimentation tanks and size/capacity of storage ponds/tanks;

Calculations for the required and designed capacity of treatment units;
5
Inspection, Maintenance and Monitoring of ECM

Inspection schedule, checklist and maintenance schedule to be carried out by
Contractor for all proposed erosion and sediment control measures.
February 2013 Edition
PS-B-122
ANNEX A-g
BIODIVERSITY
1. This section is only applicable to contracts with a Biodiversity Impact
Assessment (BIA) conducted during the A/E stage for their construction work.
2. The Contractor shall adhere to and implement the recommended mitigation
measures outlined in the BIA.
3. Contractor shall submit a Biodiversity Monitoring and Management Plan as
specified in the BIA and submitted to the Engineer for approval within 60 days of
contract award.
4. During construction, the contractor shall also ensure the following measures are
implemented on site:
(a) Use environmentally-friendly methods for vector control such as Bacillus
Thuringiensis Israelensis (BTI) and search & destroy operation etc. instead
of anti-mosquito (AM) oil, chemical larvicides or fogging.
(b) Use sound reduced machines prior to entering the site.
(c) Barricade noisy activities with portable sound barriers or panels.
(d) Lightings would affect nocturnal animals. When lighting has to be used,
refrain from pointing the glare towards habitats. Lightings shall be directed
downwards where work is carried out.
(e) Site utilization plans shall consider preservation and protection of native
trees as far as possible. Tree or shrubs that can be preserved and
protected shall be identified with methods to prevent harm to the tree,
branches and roots. (Refer to NParks Conservation of Trees and Plants
Guideline for reference).
(f)
Preventive measures to ensure no chemical, diesel or silt discharges into
nearby waterbodies. (Refer to Annex A-f Section 6 and 10 for more details).
February 2013 Edition
PS-B-123
ANNEX A-h
FLOODING
1
General
1.1
The Contractor has to take into consideration of possible flooding to
the Works during construction stage. This shall include provision of
flooding protection measures for existing underground Rapid Transit
System (RTS) and/ or existing underground road tunnels before any
opening is made into the existing RTS below the specified flood
protection level. The Contractor shall consider the risks of flooding due
to nature or arising from the construction activities.
1.2
The Contractor shall submit, within two (2) months of the award of the
Contract a comprehensive flood protection plan for the whole of his
Works.
In preparing this plan, he shall carefully examine the
surrounding topography to determine the probable nature and extent of
any flooding. Where relevant the Contractor shall also consider in his
plan the possible adverse effects of wind and tides and the risk from
adjacent tunnel contracts.
1.3
The plan shall identify the areas that are at risk from flooding. The plan
shall examine the potential consequences of any flooding and shall
make proposals to prevent flooding.
1.4
The flood protection measures provided shall comply with the
requirements of “Code of Practice on Surface Water Drainage” for
“Flood Protection of Underground Rapid Transit System” issued by the
PUB (Drainage) Department. When considering rainfall intensity the
Contractor shall use a storm return period of not less than 100 years.
A suitable Runoff Coefficient shall use a storm return period of not less
than 100 years. A suitable Runoff Coefficient shall be used but shall
not be less than 0.90 (urban areas fully and closely built up) without
the written acceptance of the Engineer.
1.5
When pumping is proposed, the Contractor shall address the following:

operating procedures

provision of a secure power supply and back-up

automation and/or reaction time required to start the pumps

method and arrangement of discharge
February 2013 Edition
PS-B-124
1.6
Shafts shall be surrounded by topography sloping away from shaft to
direct rain water to a drainage channel. Shafts shall be equipped with a
minimum of 2 dewatering lines per shaft to ensure effective drainage in
case of blockage.
2
Flooding Evacuation and Rescue Procedure
2.1
The Contractor must make adequate safety provisions in the event of
flooding whether it is due to inclement weather or the river bank
bursting in order to minimise the loss of life and property damage,
where practicable.
2.2
The safety provisions to be put in place shall not be limited to providing
of an emergency evacuation and rescue plan, trained rescue teams
and water rescue aid or equipment. The trained rescue team and
emergency procedure shall be in place before the start of any work.
The number of trained rescue teams and water rescue aid or
equipment shall be increase when deem necessary by the Engineer or
his representatives. The water rescue aids or equipment shall be
properly maintained throughout the lifetime of the project.
2.3
Emergency drills shall be conducted every six months with the
involvement of Singapore Civil Defence Force where necessary.
February 2013 Edition
PS-B-125
ANNEX A-i
MARINE WORKS
1
General
1.1
Marine structure is defined as any temporary or permanent structure
constructed in open water, on the foreshore or in rivers where some
part or all of the structure is exposed to the water. Marine work is work
on or within a marine structure either during its construction or
installation or thereafter.
1.2
The Contractor shall ensure that all relevant requirements of marine
safety legislation are complied with and shall liaise with the appropriate
officers of the Maritime and Port Authority of Singapore (MPA) for
necessary permissions for work being carried out in waters which
come under their jurisdiction.
1.3
The Contractor shall liaise with the Building and Construction Authority
(BCA) with respect to the impact of building materials.
1.4
The Contractor shall also ensure that all relevant requirements of
environmental legislation are complied with and shall liaise with the
appropriate departments of National Environment Agency (NEA).
1.5
Navigational aids (inclusive of lights and beacons) shall be fitted at
appropriate positions as required by marine safety legislation and they
shall be maintained in efficient working order. Navigational and other
warning lights shall function throughout all hours of darkness or of
reduced visibility.
1.6
Pre and post condition sonar surveys with runs at 5.0 metre intervals or
closer shall be carried out by a hydrographic surveyor approved by
MPA. Results of the survey shall be submitted to the Engineer and
MPA. Any high spots, levels or sunken object found in the post
condition sonar surveys that were not observed in the pre condition
sonar survey shall be removed to the satisfaction of the MPA.
1.7
Before starting of any marine works and upon its completion, the
Contractor shall ensure appropriate notices to mariners and other port
users are issued by the Port Master’s Department of the MPA including
the payment of necessary fees.
February 2013 Edition
PS-B-126
1.8
The Contractor shall ensure that lifting machines inclusive of barge
mounted cranes, lifting appliances and lifting gears on board of any
vessel used for lifting operations in connection with this Contract shall
comply with the “lifting operation” annex of this general specification.
1.9
All floating barge / pontoon mounted plant shall be secured against
accidental displacement and the barge / pontoon anchored to minimise
movement due to the drag of the current etc.
1.10
At night the waters surrounding any barge / pontoon in which any form
of work is being carried out shall be effectively illuminated to a surface
distance of 10 metres away.
1.11
All reasonable measures shall be taken by the Contractor to prevent
workers from falling into the water. All persons working near the edge
of docks, wharves or similar structures, or on board a vessel or barge
mounted crane shall be provided with and shall wear a suitable life
jacket.
1.12
Where any work is being carried out on or near water suitable life
buoys with sufficient length of life line shall be placed at strategic
points for rescue purposes. The Contractor shall provide a standby
emergency boat at a location approved by the Engineer.
1.13
The Contractor shall ensure that vertical ladders which afford a means
of escape for a person from the water to a safe place are fixed to the
outer surface of any marine structure or vessel on which work is being
carried out and maintained in an acceptable condition.
2
Design, Installation and Dismantling of Marine Structures
2.1
The design of the marine structure shall take into account the
maximum possible tidal range and flow, effects of flooding or other
works upriver if appropriate, the wash caused by passing vessels and
predicted wave height in the worst foreseeable weather conditions. In
determining these maximum water levels the Contractor shall consult
relevant tidal charts and tables for the intended location of the marine
structure.
2.2
The design of marine structures should also take into account the
impact load due to the berthing force of vessels, barges, etc.
February 2013 Edition
PS-B-127
2.3
The Contractor shall ensure that the marine structure is designed by a
PE and such design shall be subject to approval by both NEA and
MPA. The PE shall supervise its construction and certify the structure
as being in compliance with his design and calculations before the
marine structure is first taken into use.
2.4
The PE shall specify the method by which the marine structure is to be
located in position, if it is pre-fabricated, and shall supervise closely its
being placed there. This work shall be carried out by persons having
adequate previous experience of similar work, or by persons under the
close control of supervisors who have such experience. The marine
works shall be supervised by a dedicated and qualified supervisor.
2.5
If assembled in-situ, only competent workers are to be used, and
appropriate precautions must be taken to ensure the safety of those
persons engaged in such work.
2.6
Alterations or modifications proposed to the marine structure shall be
planned and designed by a PE subject to the approval of the Engineer.
The PE shall subsequently certify that such works have been carried
out in accordance with his designs and calculations before being taken
back into use.
2.7
A method statement containing relevant safety requirements shall be
generated by a PE together with a risk assessment for the installation,
dismantling and subsequent removal from site of the marine structure
and this shall be approved by the Engineer before any such work takes
place.
2.8
All temporary marine structures erected shall be dismantled and
removed on completion of the works.
3
Working Platforms
3.1
Where a person is required to work above water, proper working
platforms in compliance with Scaffold Regulations shall be provided.
They shall be maintained in position along all open sides of the
platforms and any associated means of access except the parts where
it is necessary for this edge protection to be removed for the work in
progress.
3.2
If required by the Engineer safety nets shall be placed under any
working platform over water, at a sufficient height to prevent a person
coming into contact with the water taking into account the maximum
tidal range.
February 2013 Edition
PS-B-128
3.3
No-one shall carry out any work over water from a temporary work
platform unless he is wearing a safety harness which is secured by a
lanyard to a fixed point or lifeline which has first been inspected and
authorised by a Safety Supervisor as safe for use. Such authorisation
shall be recorded in writing in a register kept for that purpose.
3.4
Barges and pontoons and similar which are used as working platforms
shall be properly constructed and sufficiently stable to avoid tipping. All
persons working on them shall wear appropriate buoyancy aids and be
instructed in what action to take in the case of any capsize or man
overboard. Each shall have an appropriately stocked first aid box on
board.
4
Water Transport
4.1
Persons may only be transported across water to their work locations
only in vessels certified by MPA. All persons carried on board as
passengers must be seated throughout the crossing and the vessel
may only carry the approved number of passengers. If materials are
carried in addition to passengers, the vessel must not be overloaded.
Operators of these vessels shall hold a valid MPA license to operate.
4.2
The vessel must be equipped with the scheduled number of suitable
life-saving appliances according to its capacity and these should be
maintained in a satisfactory condition.
4.3
No smoking shall be permitted on board the vessel.
4.4
The embarkation and disembarkation points for passengers at the land
side and at the work location shall be fitted with hand rails and mid rails
and shall be designed to make access safe during all tidal and weather
conditions. Grab ropes shall be fitted near the waterline at all such
locations and lifebelts provided and maintained close to the edge.
4.5
When not engaged in the transportation of passengers the vessel shall
be on standby for rescue and other emergency purposes.
4.6
The Contractor shall make available a vessel together with operator
with a seating capacity of not less than six passengers to enable LTA
site staff to carry out inspections of the marine works at any time
during the working hours of the Contract.
February 2013 Edition
PS-B-129
4.7
All barges, pontoons, vessels and similar used for transporting
materials to the work locations for whatever reasons shall be certified
by MPA. All persons who work on board shall be subject to the site
rules and regulations of the Contractor and shall take part in such
safety activities, co-ordination meetings and briefings as are required
under the Contractor’s Safety Management System.
4.8
All sunken vessels, barges, pontoons that may have sunk during the
project shall be salvaged and removed.
5
Inspection and Remedial Works
5.1
The marine structure shall be inspected by a competent person before
any person carries out work in it at the start of any shift or, of
continuous working is undertaken, at least once in every period of 12
hours. The results of such inspection shall be recorded in writing and
the entry countersigned by the Project Manager or his nominated
representative on a daily basis.
5.2
The marine structure shall also be inspected by a competent person
after any incident which may have affected its strength or structural
integrity.
5.3
If any remedial works are found to be necessary all workers not
involved in such work shall be removed to a safe place on land before
such work is commenced.
5.4
Any remedial works shall be designed by a PE and approved by the
Engineer.
6
Diving
6.1
All diving works shall comply with “SS 511, Diving at Work”. Prior to the
commencement of any dive, the Contractor shall submit a dive plan in
accordance to SS 511 for the Engineer’s approval.
7
Emergency Procedures
7.1
The Contractor shall draw up emergency plans to cover all foreseeable
contingencies and these shall be approved by the Engineer before any
marine work takes place. They shall include provision for the setting up
of an emergency control centre and management team to co-ordinate
the rescue procedure or other response.
February 2013 Edition
PS-B-130
7.2
The Contractor shall ensure that all persons including those who are
not employees of the Contractor or of his sub-contractors who work on
or over water for whatever reason are briefed in these procedures, in
appropriate languages which they understand, before commencing
work.
7.3
A desk top exercise shall be held for the worst case emergency
scenario involving the marine structures within 3 months of the
permanent works commencing thereon.
February 2013 Edition
PS-B-131
ANNEX A-j
CONTAMINATED GROUND
1
General
1.1
Soil samples at appropriate depths and spacing shall be taken for
testing by a competent person to identify any contaminant present as
well as monitoring of airborne contaminants through air sampling. Soil
contaminants to consider shall include, but not limited to, heavy metals
and their derivatives, hydrocarbon compounds and asbestos. Airborne
contaminants to consider shall include, but not limited, methane (CH4)
and other flammable gases.
1.2
The Contractor must take all necessary precautions to prevent any
person from being exposed to the risk posed by the contaminants.
1.3
It shall be noted that contamination can be caused by a range of
different hazardous materials and by a mixture of concentrations and
distributions. Contaminants can also migrate to adjacent areas via
ground water.
(a)
Measures shall be taken in the design to alleviate the risks and
describe those hazards that are not reasonably practicable to
remove by design but must be controlled by the Contractor and
any other relevant party.
(b)
The Contractor shall ensure that sufficient information is
provided on the nature, extent and level of contamination and
that all personnel entering the site shall be informed of the
hazards and the precautions needed.
(c)
All permissible exposure limits shall be established and
communicated.
2
Site Layout
2.1
The perimeter of the site shall be hoarded and suitable warning signs
posted. Access into and out of the site shall be controlled via one
entrance with washing and changing facilities for personnel and a
wash-bay for vehicles leaving the site.
2.2
The main site office shall be located in a “clean” area as recommended
by the Environmental, Safety and Health Specialist, and may include a
canteen for personnel to take their meals.
February 2013 Edition
PS-B-132
2.3
Security shall be provided to prevent unauthorised access onto the
site.
2.4
Established thoroughfares and alternative routes across the site shall
be clearly defined and maintained.
3
Hygiene
3.1
A high standard of personal hygiene shall be practised and enforced at
all times.
3.2
The consumption of food and drinks shall be confined to the canteen
area. No smoking is allowed on site.
3.3
The washing and changing facilities shall include storage for
contaminated clothing, footwear etc. and arrangements shall be made
for the washing and drying of these.
3.4
Appropriate Personal Protective Equipment (PPE), which may include
but not limited to waterproof safety boots and gloves when handling
wet material, shall be provided for all personnel working on site.
3.5
A boot wash shall be situated immediately outside the entrance to the
washing and changing facilities, and this shall include running water
and either fixed or hand brushes to remove contaminated soils.
4
Health and Safety
4.1
An Industrial Hygiene Specialist shall be engaged by the Contractor to
carry out the risk assessment for the affected area. He/she may not
necessary be on site at all times, however he/she is to be available on
site whenever the need for professional advice arises.
The
appointment of such a specialist shall be subjected to the acceptance
of the Engineer.
4.2
A Designated Workplace Doctor shall be engaged to attend to the
health of the workers exposed to contaminated materials while working
on site. He/She need not be stationed on site but prior arrangements
must be made to enable him/her to attend to the workers when the
need arises. Periodic medical examination and monitoring of workers
are to be carried out at the advice of the Designated Factory Doctor.
4.3
Adequate first aid provisions shall be made available on site with a first
aid station located next to the washing facilities.
February 2013 Edition
PS-B-133
4.4
Practical measures shall be implemented to control dust generation on
site that may pose a possible hazard to those working on-site as well
as the public.
4.5
Air quality on site shall be monitored on a frequency deemed
appropriate by the site engineer or as advised by the Industrial
Hygiene Specialist. Gases to be monitored include, but not limited to,
methane (CH4) and other flammable and toxic gases, with emergency
plans prepared in the event permissible limits are breached. A record
of the daily monitoring is to be submitted to the Engineer weekly.
4.6
Work in excavations deeper than 1 metre as well as confined spaces
are to be controlled via a Permit-To-Work system. And all works in
confined spaces are to comply with SS568 Confined Spaces.
4.7
Excavation greater than 2m in depth shall be designated a restricted
area and worker shall not work alone and shall have a watcher at the
surface. This is in addition to the need for a Permit-To-Work.
4.8
Facemasks shall be worn by personnel working over borehole while it
is being advanced through the waste and before the temporary casing
is installed down to natural ground.
5
Operational Regime
5.1
On-site speed limits shall be applied as a mandatory standard and due
diligence shall be given to any operations which are likely to create a
dust nuisance.
5.2
Arrangements shall be made for dewatering of excavations.
leachate shall be regarded as hazardous.
5.3
Discharge of extracted leachate shall be to an area approved for such
disposal by the National Environment Agency.
5.4
Excavation and compaction work shall be carried out by use of track
driven hydraulic excavators. Waste dumping and compaction shall be
carried out by tracked or steel-wheeled plant.
5.5
All machinery/plant/vehicle used on site shall have enclosed airconditioned cabs.
5.6
All site plant and machinery shall be thoroughly washed down before
leaving the site.
Site
February 2013 Edition
PS-B-134
6
Disposal of Dumping Ground Material
6.1
The Contractor shall comply with all the statutory requirements as laid
down by the National Environment Agency with regards to the disposal
of contaminated waste material.
6.2
The Contractor shall transport waste material directly from the
excavation to the approved dumping ground and shall discharge the
waste directly into position. No stockpiles of waste are allowed on site.
February 2013 Edition
PS-B-135
ANNEX A-k
D&B RAIL PROJECTS
CIVIL DESIGN SAFETY SUBMISSIONS
1
Introduction
1.1
The Contractor shall be required to prepare and submit risk
assessment reports for the following project life cycle:
(i)
Design stages: Pre-Final Design and Final Design
(ii)
Pre-construction
(iii)
Project handover
1.2
The risk assessment reports to be submitted at the Pre-Final Design
Stage shall be the Civil Design Pre-Final Safety Submissions and at
the Final Design Stage shall be the Civil Design Safety Submission
(Civil DSS).
1.3
The Civil Design Pre-Final Safety Submissions shall be submitted one
(1) month after pre-final design submission and the Civil Design Safety
Submissions (Civil DSS) shall be submitted one (1) month after the
final design submission.
1.4
After the completion of the Civil DSS, the Contractor shall use it as a
base for the preparation of the Civil Construction Safety Submissions
(Civil CNSS). The CNSS can be submitted in accordance to structural
packages and shall be submitted to the Engineer two (2) months
before application for permit to excavate.
1.5
The Contractor shall also prepare and submit a Civil Handover Safety
Submission (Civil HSS). The Civil HSS shall be submitted four (4)
months before the completion of system test running or handling over
of project to the Operator for trial run, whichever is earlier.
1.6
The Accident Frequency, Accident Severity and Risk Index for the risk
assessment and Hazard Register Structure for the Civil DSS, CNSS
and the HSS shall be in compliance with Clause 4 of this Annex.
1.7
The Civil DSS, CNSS and HSS shall be subjected to the acceptance of
the Engineer. The Contractor shall make amendments and revise the
Safety Submissions in accordance with the Engineer’s comments.
February 2013 Edition
PS-B-136
2
Safety Submissions
2.1
Civil Design Safety Submissions (CIVIL DSS)
2.1.1
The objectives of the Safety Submissions at the Pre-Final and Final
design stages is to demonstrate that the design concept of the
permanent works and the proposed construction methodologies and
measures under the specific contract has addressed the relevant
identified preliminary hazards and newly identified construction and
maintenance hazards.
2.1.2
The fundamental information to be provided in the Civil Design Safety
Submissions shall include but not limited to the following:
(i)
(ii)
Background Information
(a)
An executive summary highlighting the major areas of
concern and the required mitigation measures including
the status of findings
(b)
Brief description of the Civil Contract and its scope (the
number of stations, tunnel/viaduct/at grade trackway,
stations descriptions, alignment and etc.)
(c)
Environment (On adjacent buildings, utilities, water
bodies)
(d)
Proposed Method of Construction
(e)
Details of key milestone schedules of the Contract
Identification of Major Hazards and Mitigation
(a)
Relevant hazards identified in the Civil Concept Safety
Submissions (furnished by the Authority)
(b)
Impact To Utilities
(c)
Impact To Buildings and Adjacent Structures
(d)
Impact To Existing and Future Rapid Transit System
(e)
Flooding (to public and own works)
(f)
Surface/Ground Settlement
February 2013 Edition
PS-B-137
(iii)
(g)
Environmental Impact
(h)
Demolition of Buildings and Structures
(i)
Underpinning of Buildings and Structures
(j)
Construction near high risks areas, e.g. petrol stations,
ammunition stores, power plants, dump sites and etc.
(k)
Risk associated with future provisions
(l)
Risk associated with known future provisions
(m)
Highlight hazards that cannot be eliminated through
design of permanent structures and requires mitigation
measures during construction
(n)
Highlight maintenance hazards and their proposed
operation measures
(o)
Major risk to workers and public
(p)
Specific compliance requirements during construction for
safety and health
Hazard and Risk Management Process
(a)
A description on the roles and responsibilities in the
review and acceptance of the mitigation measures
(b)
The hazard and risk mitigation process shall demonstrate
that the high- level hazards have been assessed and that
there is no hazard with residual “Intolerable” risk
categorisation after the proposed mitigation measures.
2.2
Civil Construction Safety Submission (CIVIL CNSS)
2.2.1
The objective of the Civil CNSS is to demonstrate that the residual
hazards transferred from the Civil DSS have been mitigated during
construction phase in the specific contract and that the Contractor has
in place the necessary arrangement for managing safety risks.
2.2.2
The fundamental information to be provided in the Civil CNSS is the
construction health and safety plan that shall include but not limited to
the following areas:
February 2013 Edition
PS-B-138
(i)
An executive summary report highlighting the major areas of
concerns and the status of findings.
(ii)
Description of contract work and scope:
(iii)
(iv)
(iv)

Major work description and scope;

Programme details; and

Brief details of subcontractors and other consultants.
Communication and management of the work:

Contractor’s Safety Management System prepared
according to the guideline of CP 79. The element on
emergency preparedness shall include a flood protection
plan, a fire safety plan, etc;

Arrangement for monitoring and review of health and safety
performance; and

Arrangement for the exchange of design information
between the developer, designer and contractors.
Hazard management covering:

Proposed mitigation measures
transferred from the Civil DSS;

Temporary works design such as temporary support
structure, false work system, design of decking for support of
road traffic, etc;

Further major hazards identified by the Contractor (besides
residual hazards transferred from Civil DSS) and proposed
mitigation measures for these identified “new” hazards. The
information shall highlight the major construction hazards
that are specific to the contract locality; and

Other envisaged significant health & safety risk during the
construction process and its mitigation measures.
of
the
residual
risk
Environmental control plan (in compliance with ISO 14000).
February 2013 Edition
PS-B-139
2.2.3
The Civil CNSS shall not focus on common construction work activities
such as heavy lifting, hot works, form work erection and etc. These
routine construction work activities shall be addressed through method
statements.
2.3
Civil Handover Safety Submission (Civil HSS)
2.3.1
The objective of the Civil HSS is to provide the operator/maintenance
agencies the necessary information on maintenance hazards and
those residual hazards or information that are relevant to the health
and safety of any future construction work, which includes cleaning,
maintenance, alterations, refurbishment and demolition.
2.3.2
The fundamental information to be provided in the HSS is the Health
and Safety File that shall include but not limited to the following areas:
(i)
An executive summary report highlighting the major areas of
concerns and status of findings.
(ii)
Summary list of information and final as-built drawings of the
structure, including safe working loads for floors and roofs.
(iii)
Key structural principles incorporated in the design of the
structure.
(iv)
Schedule of hazardous substances and location of where they
are used, if any.
(v)
Information on:
(vi)

Maintenance hazards, including hazardous areas;

Specialist manuals for operating and maintenance and
replacement purposes; and

Fragile materials that maintainer must exercise additional
precautions.
Hazards that should be considered during future construction
work on or nearby the premises.
February 2013 Edition
PS-B-140
3
Risk Management Facilitator For The Hazard Identification and
Risk Management Process
3.1
The Contractor shall engaged a professional with at least 10 years
experienced in construction industry and 5 years experience in
construction management, preferably with some design experience
and must be trained in hazard identification and risk assessment
methodology. The Risk Management Facilitator shall be subjected to
the Authority’s acceptance.
3.2
The Risk Management Facilitator shall facilitate the hazard
identification and risk management sessions for the preparations of the
Safety Submissions. The Authority shall be invited to attend these
sessions as observers. The Authority may send representative(s) to
attend if deemed necessary.
3.3
The Risk Management Facilitator shall be the appointed person incharge of the preparation and submission of the Safety Submissions.
The hazard registers are live documents. He shall add new hazards
identified, monitor and update the hazards in the register to ensure all
hazards are mitigated and closed.
3.4
The Risk Management Facilitator shall attend the Engineer’s Project
Safety Committee Meetings and any other risk management meetings
directed by the Engineer.
4
Risk Matrix, Hazard Register Structure and Hazard Action
Form(HAF)
4.1
The Contractor shall prepare the Safety Submissions using the risk
matrix given:
Table 1 :
Likelihood
Frequent
Probable
Occasional
Remote
Improbable
Rating
I
II
III
IV
V
Accident Frequency
Description
Likely to occur 12 times or more per year
Likely to occur 4 times per year
Likely to occur once a year
Likely to occur once in 5 year project period
Unlikely, but may exceptionally occur
February 2013 Edition
PS-B-141
Table 2 - Accident Severity
No Consequence Rating
Description(*)

1
Catastrophic
I



2
Critical
II



3
Marginal
III



4
Negligible
IV


Single or Multiple loss of life from injury or
occupational disease, immediately or
delayed; and/or
Loss of whole production for greater than 3
days and/or
Total loss in excess of $1 million.
Reportable major injury1, occupational
disease1 or dangerous occurrence; and/or
Damaged to works or plants causing delays
of up to 3 days; and/or
Total loss in excess of $250,000 but up to $1
million.
Reportable injury2, occupational disease2 ;
and/or
Damage to works or plants causing delays
of up to 1 day; and/or,
Total loss in excess of $25,000 but up to
$250,000.
Minor injury3, no lost time or person involved
returns to work during the shift after
treatment; and/or
Damage to works or plants does not cause
significant delays; and/or
Total loss of up to $25,000.
Note:
(*) If more than one of the descriptions occurs, the severity rating would be
increased to the next higher level. Applicable to item numbers 2 and 3 only.
1
For man-days lost greater than 7 days.
For man-days lost between 4 to 7 days.
3
For man-days lost between 1 to 3 days.
2
February 2013 Edition
PS-B-142
Table 3: Risk Index Matrix
Risk Category
I
II
III
IV
V
Accident
Frequency
Category
Frequent
Probable
Occasional
Remote
Improbable
Accident Severity Category
I
II
III
IV
Catastrophic Critical Marginal Negligible
A
A
A
B
A
A
B
C
A
B
C
C
B
C
C
D
C
C
D
D
The definitions of the risk indices determined from the Risk Index
Assessment Matrix are presented in the table 4.
Table 4:
Risk Index
Description
A
Intolerable
B
Undesirable
C
Tolerable
D
Acceptable
4.2
Definition of Risk Index
Definition
Risk shall be reduced by whatever means
possible.
Risk shall only be accepted if further risk
reduction is not practicable.
Risk shall be accepted subject to demonstration
that the level of risk is as low as reasonably
practicable.
Risk is acceptable.
For hazards relating to operation and maintenance, the Accident
Frequency, Accident Severity and the Risk Category shall be in
accordance to the definitions given in Table 5, 6, 7 and 8.
Table 5: Accident Frequency
Category
* Definition
Frequency Guide
(Operating hour)
acc = accident
1 Frequent
Likely to occur frequently. The
hazard will be continually
experienced.
≥ 1 acc per 100 hrs
2 Probable
Will occur several times. The
hazard can be expected to occur
often.
1x102 hrs < 1 acc ≤ 1x104 hrs
February 2013 Edition
PS-B-143
Category
Frequency Guide
(Operating hour)
acc = accident
* Definition
Likely to occur several times. The
3 Occasional hazard can be expected to occur
several times.
4 Remote
Likely to occur some time in the
system’s life cycle. The hazard can
reasonably be expected to occur.
1x104 hrs < 1 acc ≤ 1x105 hrs
1x105 hrs < 1 acc ≤1x 106 hrs
Unlikely to occur but possible. It can
6
8
5 Improbable be assumed that the hazard may
1x10 hrs < 1 acc ≤ 1x10 hrs
exceptionally occur.
6 Incredible
Extremely unlikely to occur. It can
be assumed that the hazard may
not occur.
1x108 hrs < 1 acc ≤ 1x1010
hrs
* Source: European Standard EN 50126
Table 6: Accident Severity
Category
* Definition
I
Catastrophic
Fatalities and/or multiple severe injuries and/or major
damage to the environment.
II
Critical
Single fatality and/or severe injury and/or significant damage
to the environment.
III
Marginal
Minor injury and/or significant threat to the environment.
IV
Insignificant
Possible minor injury.
Source: European Standard EN 50126
February 2013 Edition
PS-B-144
Table 7: Risk Category
Accident Severity Category
Risk Category*
I
II
III
IV
Catastrophic
Critical
Marginal
Insignificant
Frequent
Intolerable
Intolerable
Intolerable
Undesirable
Probable
Intolerable
Intolerable
Undesirable
Tolerable
Intolerable
Undesirable
Undesirable
Tolerable
Undesirable
Undesirable
Tolerable
Negligible
Improbable
Tolerable
Tolerable
Negligible
Negligible
Incredible
Negligible
Negligible
Negligible
Negligible
Accident Occasional
Frequency
Category Remote

Source: European Standard EN 50126
Table 8: Definition of Risk Categories
Risk Category
Definition
Intolerable
Risk that shall be reduced by whatever means possible.
Undesirable
Risk that shall only be accepted if further risk reduction is not
practicable.
Tolerable
Risk that shall be accepted subject to it being reduced so far as
is reasonably practicable.
Negligible
Risk that shall be accepted subject to endorsement of the safety
submission.
February 2013 Edition
PS-B-145
HAZARD REGISTER STRUCTURE
1
2
Hazard
Code
4
Previous Work
Hazard
Hazard ID Activity
Risk ID
Hazard
No.
3
Running
Number
5
Hazard
Cause
6
7
Initial Risk
Impact Category
Ri
F S Ri
8
Mitigation
Measures
9
10
Future
Residual Risk
Actions
Category
Rr
F
S
Rr
11
Risk
Owner
12
Action
Owner
13
Due Date
By
14
15
16
Risk Exposure
Period
Target Risk
Rating
Status
17
Remark
Definitions of Terms in the Hazard Log
Column
1.
2.
3.
4.
5.
6.
7.
8.
9.
Field Name
Risk ID
Previous ID
Work Activity
Hazard
Hazard Cause
Impact
Initial Risk Category
(Ri)
Mitigation Measures
10.
11.
Residual Risk
Category (Rr)
Future Actions
Risk Owner
12.
13.
14.
15.
16.
Action Owner
Due Date By
Risk Exposure Period
Target Risk Rating
Status
17.
Remark
Description
Numbering system will be advised by the Engineer upon award of contract. Hazard Code refer to the list attached in next page.
The hazard number that was previously assigned to the particular hazard before it was transferred to the current hazard register.
Describes the construction activity that may have risks.
A situation or circumstance in which there is a potential for an accident to occur that may cause injury or fatality to personnel, or damage to system or environment. For example, toxic
fumes are a potential hazard. In many cases, the hazard may be continuously present under normal conditions, referred to as an intrinsic hazard. Note that the hazard is distinct from
the accident, but is rather the circumstances in which the accident may occur.
The events, circumstances or conditions that result in the creation of the hazard.
The result of such hazard i.e. type of accident or incident that may happen if this hazard occurs.
The initial risk assessed prior to mitigation measures is implemented. This is dependent on the frequency (F) rating and severity (S) rating.
Provision of safeguards/control measures for considerations. The risks should be re-assessed to see if either probability or severity rate has been reduced by the proposed mitigation
measures.
The risk assessed when the proposed mitigation measures are in place. This is dependent on the frequency (F) rating and severity (S) rating.
These are additional mitigation measures identified but yet to be implemented.
The person who carries the responsibility for ensuring that the risk is monitored and, where appropriate, effectively managed. They might not be the person who has to do the
necessary actions, but they must continuously aware of the risk and closing-out status.
This is assigned to the person who is best able to control the risk mitigation on site.
Timescale when mitigation measures are to be implemented.
The period the risk will be active for work activity described.
Mitigation rating to be achieved.
Description of current status for the risk, which also include the implementation status for proposed mitigation measures. The status shall be reviewed monthly. Closed-out date shall
be recorded against the status.
Any further comments pertaining to the risks.
**Where the hazards are deleted, the reason for deletion shall be stated clearly in the Hazard Register.
February 2013 Edition
PS-B-146
Hazard Classification Reference Codes
Ref
Category
100
101
102
103
104
105
Earth Retaining Supporting Structures (ERSS)
Temporary Structures
Diaphragm Walling/Piling
Permanent Structures
Ground Conditions
Adjacent Structures or buildings
106
Existing Utilities
107
Existing RTS Stations, Tunnels and Viaducts
108
109
110
111
Existing Road Tunnels and Viaducts
Obstructions
Interface with adjacent contracts
Interface with adjacent developments
112
113
114
Future developments or Addition & Alteration
works
Tunneling
Underpinning Works
115
Demolition Works
116
117
118
119
120
121
122
123
124
125
999
Blasting Works
Construction Methodology
Ground Improvements
Instrumentation
Hazardous Materials
Fire & Explosions
Flooding
Confined Space
Architectural/Glazing Works
Maintenance
Others
February 2013 Edition
PS-B-147
HAZARD ACTION FORM
Hazard Action
Form No:
Hazard No:
Date
Issued
Response
Date Due
Part 1
Actionee / Hazard
Owner :
Additional
Actionee / Hazard
Owner :
Hazard
Hazard Cause
Accident Potential
Initial Accident
Risk
Severity:
Accident Frequency:
Risk Class:
Part 2 – Hazard
Owner(s)
Description Of Action Needed :
Actionee(s) Response :
Name :
Signature :
Date :
Residual Accident
Risk
Name :
Severity:
Accident Frequency:
Signature :
Subsequent Action Raised :  Yes  Action No. :
No
Part 3
Action Review & Status
Decision/Comments On Part 2 :
Risk Class:
Date :

February 2013 Edition
PS-B-148
ANNEX A-l
BUILD ONLY RAIL PROJECTS
CIVIL DESIGN SAFETY SUBMISSIONS
1
Introduction
1.1
The Contractor shall be required to prepare and submit risk
assessment reports for the following stages of the project life cycle:
(i)
Pre-construction Stage
(ii)
Project Handover
1.2
The Contractor shall be given a copy of a Civil Design Safety
Submission prepared by the Authority or its Consultant. The Contractor
shall use it as a base for the preparation of the Civil Construction
Safety Submissions (Civil CNSS). The CNSS can be submitted in
accordance to structural packages and shall be submitted to the
Engineer two (2) months before application for permit to excavate or
two (2) months before making structural submission to the Building and
Construction Authority (BCA) for temporary works. The final timing for
the submission of the CNSS shall be decided by the Engineer.
1.3
The Contractor shall also prepare and submit a Civil Handover Safety
Submission (Civil HSS). The Civil HSS shall be submitted four (4)
months before the completion of system test running or handling over
of project to the Operator for trial run, whichever is earlier.
1.4
The Accident Frequency, Accident Severity and Risk Index for the risk
assessment and Hazard Register Structure for the Civil DSS, CNSS
and the HSS shall be in compliance with Clause 4 of this Annex.
1.5
The Civil CNSS and HSS shall be subjected to the acceptance of the
Engineer. The Contractor shall make amendments and revise the
Safety Submissions in accordance with the Engineer’s instructions.
2
Safety Submissions
2.1
Civil Construction Safety Submission (CIVIL CNSS)
2.1.1
The objective of the Civil CNSS is to demonstrate that the residual
hazards transferred from the Civil DSS have been mitigated during
construction phase in the specific contract and that the Contractor has
in place the necessary arrangement for managing safety risks.
February 2013 Edition
PS-B-149
2.1.2
The fundamental information to be provided in the Civil CNSS is the
construction health and safety plan that shall include but not limited to
the following areas:
(i)
An executive summary report highlighting the major areas of
concerns and the status of findings.
(ii)
Description of contract work and scope:
(iii)
(iv)
(v)

Major work description and scope;

Programme details; and

Brief details of subcontractors and other consultants.
Communication and management of the work:

Contractor’s Safety Management System prepared
according to the guideline of CP 79. The element on
emergency preparedness shall include a flood protection
plan, a fire safety plan, etc;

Arrangement for monitoring and review of health and safety
performance; and

Arrangement for the exchange of design information
between the developer, designer and contractors.
Hazard management covering:

Proposed mitigation measures
transferred from the Civil DSS;

Temporary works design such as temporary support
structure, false work system, design of decking for support of
road traffic, etc;

Further major hazards identified by the Contractor (besides
residual hazards transferred from Civil DSS) and proposed
mitigation measures for these identified “new” hazards. The
information shall highlight the major construction hazards
that are specific to the contract locality; and

Other envisaged significant health & safety risk during the
construction process and its mitigation measures.
of
the
residual
risk
Environmental control plan (in compliance with ISO 14000).
February 2013 Edition
PS-B-150
2.1.3
The Civil CNSS shall not focus on common construction work activities
such as heavy lifting, hot works, form work erection and etc. These
routine construction work activities shall be addressed through method
statements.
2.2
Civil Handover Safety Submission (Civil HSS)
2.2.1
The objective of the Civil HSS is to provide the operator/maintenance
agencies the necessary information on maintenance hazards and
those residual hazards or information that are relevant to the health
and safety of any future construction work, which includes cleaning,
maintenance, alterations, refurbishment and demolition.
2.2.2
The fundamental information to be provided in the HSS is the Health
and Safety File that shall include but not limited to the following areas:
(i)
An executive summary report highlighting the major areas of
concerns and status of findings.
(ii)
Summary list of information and final as-built drawings of the
structure, including safe working loads for floors and roofs.
(iii)
Key structural principles incorporated in the design of the
structure.
(iv)
Schedule of hazardous substances and location of where they
are used, if any.
(v)
Information on:
(vi)

Maintenance hazards, including hazardous areas;

Specialist manuals for operating and maintenance and
replacement purposes; and

Fragile materials that maintainer must exercise additional
precautions.
Hazards that should be considered during future construction
work on or nearby the premises.
February 2013 Edition
PS-B-151
3
Risk Management Facilitator For The Hazard Identification and
Risk Management Process
3.1
The Contractor shall engaged a professional with at least 10 years
experienced in construction industry and 5 years experience in
construction management, preferably with some design experience
and must be trained in hazard identification and risk assessment
methodology. The Risk Management Facilitator shall be subjected to
the Authority’s acceptance.
3.2
The Risk Management Facilitator shall facilitate the hazard
identification and risk management sessions for the preparations of the
Safety Submissions. The Authority shall be invited to attend these
sessions as observers. The Authority may send representative(s) to
attend if deemed necessary.
3.3
The Risk Management Facilitator shall be the appointed person incharge of the preparation and submission of the Safety Submissions.
The hazard registers are live documents. He shall add new hazards
identified, monitor and update the status of hazards in the register to
ensure that all hazards identified are mitigated and closed.
3.4
The Risk Management Facilitator shall attend the Engineer’s Project
Safety Committee Meetings and any other risk management meetings
directed by the Engineer.
4
Risk Matrix, Hazard Register Structure and Hazard Action
Form(HAF)
4.1
The Contractor shall prepare the Safety Submissions using the risk
matrix given:
Table 1 :
Accident Frequency
Likelihood
Rating
Description
Frequent
I
Likely to occur 12 times or more per year
Probable
II
Likely to occur 4 times per year
Occasional
III
Likely to occur once a year
Remote
IV
Likely to occur once in 5 year project period
Improbable
V
Unlikely, but may exceptionally occur
February 2013 Edition
PS-B-152
Table 2 - Accident Severity
No Consequence Rating
Description(*)

1
Catastrophic
I



2
II
Critical



3
III
Marginal



4
Negligible
IV


Single or Multiple loss of life from injury or
occupational disease, immediately or
delayed; and/or
Loss of whole production for greater than
3 days and/or
Total loss in excess of $1 million.
Reportable major injury1, occupational
disease1 or dangerous occurrence; and/or
Damaged to works or plants causing delays
of up to 3 days; and/or
Total loss in excess of $250,000 but up to
$1 million.
Reportable injury2, occupational disease2 ;
and/or
Damage to works or plants causing delays
of up to 1 day; and/or,
Total loss in excess of $25,000 but up to
$250,000.
Minor injury3, no lost time or person
involved returns to work during the shift
after treatment; and/or
Damage to works or plants does not
cause significant delays; and/or
Total loss of up to $25,000.
Note:
(*) If more than one of the descriptions occurs, the severity rating would be
increased to the next higher level. Applicable to item numbers 2 and 3 only.
1
For man-days lost greater than 7 days.
For man-days lost between 4 to 7 days.
3
For man-days lost between 1 to 3 days.
2
Table 3: Risk Index Matrix
Risk Category
Accident
Frequency
Category
I
II
III
IV
V
Frequent
Probable
Occasional
Remote
Improbable
Accident Severity Category
I
II
III
IV
Catastrophic
Critical
Marginal
Negligible
A
A
A
B
C
A
A
B
C
C
A
B
C
C
D
B
C
C
D
D
February 2013 Edition
PS-B-153
The definitions of the risk indices determined from the Risk Index Assessment
Matrix are presented in the table 4.
TABLE 4:
Risk Index Description
A
Intolerable
B
Undesirable
C
Tolerable
D
Acceptable
4.2
Definition of Risk Index
Definition
Risk shall be reduced by whatever means possible.
Risk shall only be accepted if further risk reduction is
not practicable.
Risk shall be accepted subject to demonstration that
the level of risk is as low as reasonably practicable.
Risk is acceptable.
For hazards relating to operation and maintenance, the Accident
Frequency, Accident Severity and the Risk Category shall be in
accordance to the definitions given in Table 5, 6, 7 and 8.
Table 5: Accident Frequency
Category
* Definition
Frequency Guide
(Operating hour)
acc = accident
1 Frequent
Likely to occur frequently. The hazard
will be continually experienced.
≥ 1 acc per 100 hrs
2 Probable
Will occur several times. The hazard
can be expected to occur often.
1x102 hrs < 1 acc ≤ 1x104
hrs
3 Occasional
Likely to occur several times. The
hazard can be expected to occur
several times.
1x104 hrs < 1 acc ≤ 1x105
hrs
4 Remote
Likely to occur some time in the
system’s life cycle. The hazard can
reasonably be expected to occur.
1x105 hrs < 1 acc ≤1x 106
hrs
Unlikely to occur but possible. It can be
1x106 hrs < 1 acc ≤
5 Improbable assumed that the hazard may
1x108 hrs
exceptionally occur.
6 Incredible
Extremely unlikely to occur. It can be
assumed that the hazard may not
occur.
1x108 hrs < 1 acc ≤
1x1010 hrs
* Source: European Standard EN 50126
February 2013 Edition
PS-B-154
Table 6: Accident Severity
Category
* Definition
I
Catastrophic
Fatalities and/or multiple severe injuries and/or major
damage to the environment.
II
Critical
Single fatality and/or severe injury and/or significant
damage to the environment.
III
Marginal
Minor injury and/or significant threat to the environment.
IV
Insignificant
Possible minor injury.
Source: European Standard EN 50126
Table 7: Risk Category
Accident Severity Category
Risk Category*
I
II
III
IV
Catastrophic
Critical
Marginal
Insignificant
Frequent
Intolerable
Intolerable
Intolerable
Undesirable
Probable
Intolerable
Intolerable
Undesirable
Tolerable
Intolerable
Undesirable
Undesirable
Tolerable
Undesirable
Undesirable
Tolerable
Negligible
Improbable
Tolerable
Tolerable
Negligible
Negligible
Incredible
Negligible
Negligible
Negligible
Negligible
Accident Occasional
Frequency
Category Remote
Source: European Standard EN 50126
Table 8: Definition of Risk Categories
Risk Category
Intolerable
Undesirable
Tolerable
Negligible
Definition
Risk that shall be reduced by whatever means possible.
Risk that shall only be accepted if further risk reduction is not
practicable.
Risk that shall be accepted subject to it being reduced so far as
is reasonably practicable.
Risk that shall be accepted subject to endorsement of the safety
submission.
February 2013 Edition
PS-B-155
HAZARD REGISTER STRUCTURE
1
2
Hazard
Code
4
Previous Work
Hazard
Hazard ID Activity
Risk ID
Hazard
No.
3
Running
Number
5
Hazard
Cause
6
7
Initial Risk
Impact Category
Ri
F S Ri
8
Mitigation
Measures
9
10
Future
Residual Risk
Actions
Category
Rr
F
S
Rr
11
Risk
Owner
12
Action
Owner
13
Due Date
By
14
15
16
Risk Exposure
Period
Target Risk
Rating
Status
17
Remark
Definitions of Terms in the Hazard Log
Column
1.
2.
3.
4.
5.
6.
7.
8.
9.
Field Name
Risk ID
Previous ID
Work Activity
Hazard
Hazard Cause
Impact
Initial Risk Category
(Ri)
Mitigation Measures
10.
11.
Residual Risk
Category (Rr)
Future Actions
Risk Owner
12.
13.
14.
15.
16.
Action Owner
Due Date By
Risk Exposure Period
Target Risk Rating
Status
17.
Remark
Description
Numbering system will be advised by the Engineer upon award of contract. Hazard Code refer to the list attached in next page.
The hazard number that was previously assigned to the particular hazard before it was transferred to the current hazard register.
Describes the construction activity that may have risks.
A situation or circumstance in which there is a potential for an accident to occur that may cause injury or fatality to personnel, or damage to system or environment. For example, toxic
fumes are a potential hazard. In many cases, the hazard may be continuously present under normal conditions, referred to as an intrinsic hazard. Note that the hazard is distinct from
the accident, but is rather the circumstances in which the accident may occur.
The events, circumstances or conditions that result in the creation of the hazard.
The result of such hazard i.e. type of accident or incident that may happen if this hazard occurs.
The initial risk assessed prior to mitigation measures is implemented. This is dependent on the frequency (F) rating and severity (S) rating.
Provision of safeguards/control measures for considerations. The risks should be re-assessed to see if either probability or severity rate has been reduced by the proposed mitigation
measures.
The risk assessed when the proposed mitigation measures are in place. This is dependent on the frequency (F) rating and severity (S) rating.
These are additional mitigation measures identified but yet to be implemented.
The person who carries the responsibility for ensuring that the risk is monitored and, where appropriate, effectively managed. They might not be the person who has to do the
necessary actions, but they must continuously aware of the risk and closing-out status.
This is assigned to the person who is best able to control the risk mitigation on site.
Timescale when mitigation measures are to be implemented.
The period the risk will be active for work activity described.
Mitigation rating to be achieved.
Description of current status for the risk, which also include the implementation status for proposed mitigation measures. The status shall be reviewed monthly. Closed-out date shall
be recorded against the status.
Any further comments pertaining to the risks.
**Where the hazards are deleted, the reason for deletion shall be stated clearly in the Hazard Register.
February 2013 Edition
PS-B-156
Hazard Classification Reference Codes
Ref
Category
100
101
102
103
104
105
Earth Retaining Supporting Structures (ERSS)
Temporary Structures
Diaphragm Walling/Piling
Permanent Structures
Ground Conditions
Adjacent Structures or buildings
106
Existing Utilities
107
Existing RTS Stations, Tunnels and Viaducts
108
109
110
111
Existing Road Tunnels and Viaducts
Obstructions
Interface with adjacent contracts
Interface with adjacent developments
112
113
114
Future developments or Addition & Alteration
works
Tunneling
Underpinning Works
115
Demolition Works
116
117
118
119
120
121
122
123
124
125
999
Blasting Works
Construction Methodology
Ground Improvements
Instrumentation
Hazardous Materials
Fire & Explosions
Flooding
Confined Space
Architectural/Glazing Works
Maintenance
Others
February 2013 Edition
PS-B-157
HAZARD ACTION FORM
Hazard Action
Form No:
Hazard No:
Date
Issued
Response
Date Due
Part 1
Actionee / Hazard
Owner :
Additional
Actionee / Hazard
Owner :
Hazard
Hazard Cause
Accident Potential
Initial Accident
Risk
Severity:
Accident Frequency:
Risk Class:
Part 2 – Hazard
Owner(s)
Description Of Action Needed :
Actionee(s) Response :
Name :
Signature :
Date :
Residual Accident
Risk
Name :
Severity:
Accident Frequency:
Signature :
Subsequent Action Raised:  Yes  Action No. :
No
Risk Class:
Part 3
Action Review & Status
Decision/Comments On Part 2 :
Date :

February 2013 Edition
PS-B-158
ANNEX A-m
D&B ROAD PROJECTS
CIVIL DESIGN SAFETY SUBMISSIONS
1
Introduction
1.1
The Contractor shall be required to prepare and submit risk
assessment reports for the following project life cycle:
(i)
Design stages: Pre-Final Design and Final Design
(ii)
Pre-construction
(iii)
Project handover
1.2
The risk assessment reports to be submitted at the Pre-Final Design
Stage shall be the Civil Design Pre-Final Safety Submissions and at
the Final Design Stage shall be the Civil Design Safety Submission
(Civil DSS).
1.3
The Civil Design Pre-Final Safety Submissions shall be submitted one
(1) month after pre-final design submission and the Civil Design Safety
Submissions (Civil DSS) shall be submitted one (1) month after the
final design submission.
1.4
After the completion of the Civil DSS, the Contractor shall use it as a
base for the preparation of the Civil Construction Safety Submissions
(Civil CNSS). The CNSS can be submitted in accordance to structural
packages and shall be submitted to the Engineer two (2) months
before application for permit to excavate.
1.5
The Contractor shall also prepare and submit a Civil Handover Safety
Submission (Civil HSS). The Civil HSS shall be submitted four (4)
months before the end of the defects liability period (DLP) of the
contract.
1.6
The Accident Frequency, Accident Severity and Risk Index for the risk
assessment and Hazard Register Structure for the Civil DSS, CNSS
and the HSS shall be in compliance with Clause 4 of this Annex.
1.7
The Civil DSS, CNSS and HSS shall be subjected to the acceptance of
the Engineer. The Contractor shall make amendments and revise the
Safety Submissions in accordance with the Engineer’s instructions.
February 2013 Edition
PS-B-159
2
Safety Submissions
2.1
Civil Design Safety Submissions (CIVIL DSS)
2.1.1
The objectives of the Safety Submissions at the Pre-Final and Final
design stages is to demonstrate that the design concept of the
permanent works and the proposed construction methodologies and
measures under the specific contract has addressed the relevant
identified preliminary hazards and newly identified construction and
maintenance hazards.
2.1.2
The fundamental information to be provided in the Civil Design Safety
Submissions shall include but not limited to the following:
(i)
(ii)
Background Information
(a)
An executive summary highlighting the major areas of
concern and the required mitigation measures including
the status of findings
(b)
Brief description of the Civil Contract and its scope (the
number of stations, tunnel/viaduct/at grade trackway,
stations descriptions, alignment and etc.)
(c)
Environment (On adjacent buildings, utilities, water
bodies)
(d)
Proposed Method of Construction
(e)
Details of key milestone schedules of the Contract
Identification of Major Hazards and Mitigation
(a)
Relevant hazards identified in the Civil Concept Safety
Submissions (furnished by the Authority)
(b)
Impact To Utilities
(c)
Impact To Buildings and Adjacent Structures
(d)
Impact To Existing and Future Rapid Transit System
(e)
Flooding (to public and own works)
February 2013 Edition
PS-B-160
(iii)
(f)
Surface/Ground Settlement
(g)
Environmental Impact
(h)
Demolition of Buildings and Structures
(i)
Underpinning of Buildings and Structures
(j)
Construction near high risks areas, e.g. petrol stations,
ammunition stores, power plants, dump sites and etc.
(k)
Risk associated with future provisions
(l)
Risk associated with known future provisions
(m)
Highlight hazards that cannot be eliminated through
design of permanent structures and requires mitigation
measures during construction
(n)
Highlight maintenance hazards and their proposed
operation measures
(o)
Major risk to workers and public
(p)
Specific compliance requirements during construction for
safety and health
Hazard and Risk Management Process
(a)
A description on the roles and responsibilities in the
review and acceptance of the mitigation measures
(b)
The hazard and risk mitigation process shall demonstrate
that the high- level hazards have been assessed and that
there is no hazard with residual “Intolerable” risk
categorisation after the proposed mitigation measures.
2.2
Civil Construction Safety Submission (CIVIL CNSS)
2.2.1
The objective of the Civil CNSS is to demonstrate that the residual
hazards transferred from the Civil DSS have been mitigated during
construction phase in the specific contract and that the Contractor has
in place the necessary arrangement for managing safety risks.
February 2013 Edition
PS-B-161
2.2.2
The fundamental information to be provided in the Civil CNSS is the
construction health and safety plan that shall include but not limited to
the following areas:
(i)
An executive summary report highlighting the major areas of
concerns and the status of findings.
(ii)
Description of contract work and scope:
(iii)
(iv)
(v)

Major work description and scope;

Programme details; and

Brief details of subcontractors and other consultants.
Communication and management of the work:

Contractor’s Safety Management System prepared
according to the guideline of CP 79. The element on
emergency preparedness shall include a flood protection
plan, a fire safety plan, etc;

Arrangement for monitoring and review of health and safety
performance; and

Arrangement for the exchange of design information
between the developer, designer and contractors.
Hazard management covering:

Proposed mitigation measures
transferred from the Civil DSS;

Temporary works design such as temporary support
structure, false work system, design of decking for support of
road traffic, etc;

Further major hazards identified by the Contractor (besides
residual hazards transferred from Civil DSS) and proposed
mitigation measures for these identified “new” hazards. The
information shall highlight the major construction hazards
that are specific to the contract locality; and

Other envisaged significant health & safety risk during the
construction process and its mitigation measures.
of
the
residual
risk
Environmental control plan (in compliance with ISO 14000).
February 2013 Edition
PS-B-162
2.2.3
The Civil CNSS shall not focus on common construction work activities
such as heavy lifting, hot works, form work erection and etc. These
routine construction work activities shall be addressed through method
statements.
2.3
Civil Handover Safety Submission (Civil HSS)
2.3.1
The objective of the Civil HSS is to provide the operator/maintenance
agencies the necessary information on maintenance hazards and
those residual hazards or information that are relevant to the health
and safety of any future construction work, which includes cleaning,
maintenance, alterations, refurbishment and demolition.
2.3.2
The fundamental information to be provided in the HSS is the Health
and Safety File that shall include but not limited to the following areas:
(i)
An executive summary report highlighting the major areas of
concerns and status of findings.
(ii)
Summary list of information and final as-built drawings of the
structure, including safe working loads for floors and roofs.
(iii)
Key structural principles incorporated in the design of the
structure.
(iv)
Schedule of hazardous substances and location of where they
are used, if any.
(v)
Information on:
(vi)

Maintenance hazards, including hazardous areas;

Specialist manuals for operating and maintenance and
replacement purposes; and

Fragile materials that maintainer must exercise additional
precautions.
Hazards that should be considered during future construction
work on or nearby the premises.
February 2013 Edition
PS-B-163
3
Risk Management Facilitator for The Hazard Identification and
Risk Management Process
3.1
The Contractor shall engaged a professional with at least 10 years
experienced in construction industry and 5 years experience in
construction management, preferably with some design experience
and must be trained in hazard identification and risk assessment
methodology. The Risk Management Facilitator shall be subjected to
the Authority’s acceptance.
3.2
The Risk Management Facilitator shall facilitate the hazard
identification and risk management sessions for the preparations of the
Safety Submissions. The Authority shall be invited to attend these
sessions as observers. The Authority may send representative(s) to
attend if deemed necessary.
3.3
The Risk Management Facilitator shall be the appointed person incharge of the preparation and submission of the Safety Submissions.
The hazard registers are live documents. He shall add new hazards
identified, monitor and update the status of hazards in the register to
ensure that all hazards identified are mitigated and closed.
3.4
The Risk Management Facilitator shall attend the Engineer’s Project
Safety Committee Meetings and any other risk management meetings
as directed by the Engineer.
4
Risk Matrix, Hazard Register Structure and Hazard Action
Form(HAF)
4.1
The Contractor shall prepare the Safety Submissions using the risk
matrix given:
Table 1 :
Accident Frequency
Likelihood
Rating
Description
Frequent
I
Likely to occur 12 times or more per year
Probable
II
Likely to occur 4 times per year
Occasional
III
Likely to occur once a year
Remote
IV
Likely to occur once in 5 year project period
Improbable
V
Unlikely, but may exceptionally occur
February 2013 Edition
PS-B-164
Table 2 - Accident Severity
No Consequence Rating
Description(*)

1
Catastrophic
I



2
Critical
II



3
Marginal
III



4
Negligible
IV


Single or Multiple loss of life from injury or
occupational disease, immediately or
delayed; and/or
Loss of whole production for greater than
3 man-days and/or
Total loss in excess of $1 million.
Reportable major injury1, occupational
disease1 or dangerous occurrence; and/or
Damaged to works or plants causing delays
of up to 3 man-days; and/or
Total loss in excess of $250,000 but up to
$1 million.
Reportable injury2, occupational disease2 ;
and/or
Damage to works or plants causing delays
of up to 1 man-day; and/or,
Total loss in excess of $25,000 but up to
$250,000.
Minor injury3, no lost time or person
involved returns to work during the shift
after treatment; and/or
Damage to works or plants does not
cause significant delays; and/or
Total loss of up to $25,000.
Note:
(*) If more than one of the descriptions occurs, the severity rating would be
increased to the next higher level. Applicable to item numbers 2 and 3 only.
1
For man-days lost greater than 7 days.
For man-days lost between 4 to 7 days.
3
For man-days lost between 1 to 3 days.
2
February 2013 Edition
PS-B-165
Table 3: Risk Index Matrix
I
Risk Category
Accident
Frequency
Category
I
II
III
IV
V
Frequent
Probable
Occasional
Remote
Improbable
Accident Severity Category
II
III
IV
Catastrophic
Critical
Marginal
Negligible
A
A
A
B
C
A
A
B
C
C
A
B
C
C
D
B
C
C
D
D
The definitions of the risk indices determined from the Risk Index Assessment Matrix
are presented in the table 4.
TABLE 4:
Risk Index Description
A
Intolerable
4.2
B
Undesirable
C
Tolerable
D
Acceptable
Definition of Risk Index
Definition
Risk shall be reduced by whatever means possible.
Risk shall only be accepted if further risk reduction is
not practicable.
Risk shall be accepted subject to demonstration that
the level of risk is as low as reasonably practicable.
Risk is acceptable.
For hazards relating to operation and maintenance, the Accident
Frequency, Accident Severity and the Risk Category shall be in
accordance to the definitions given in Table 5, 6, 7 and 8.
February 2013 Edition
PS-B-166
Table 5: Accident Frequency
Category
Definition
Frequency Guide
Frequent
Likely to occur often
10 times per year or more
Occasional
Likely to occur several
times
Less than 10 times per year
but more than once per year
Remote
Likely to occur sometime
during the system's
operational life
Less than once per year but
more than once every 10
years
Improbable
Unlikely to occur but
possible
Less than once every 10
years but more than once
every 100 years
Incredible
Unlikely to occur
Once every 100 years or less
Table 6: Accident Severity
Category
Definition
HIGH
Multiple fatalities and/or severe injuries
MEDIUM
Single fatality or severe injury, with possible other minor
injuries
LOW
Minor injuries or property damage only
NEGLIGIBLE
Property damage only
February 2013 Edition
PS-B-167
Table 7: Risk Category
Risk Category
Accident
Frequency
Category
Accident Severity Category
Negligible
Low
Medium
High
Frequent
B
A
A
A
Occasional
C
B
A
A
Remote
D
C
B
A
Improbable
D
D
C
B
Incredible
D
D
D
C
Table 8: Definition of Risk Categories
Risk
Category
Description
Definition
A
Intolerable
Risk shall be reduced by whatever
means possible.
B
Undesirable
Risk shall only be accepted by LTA if
further risk reduction is not practicable.
C
Tolerable
Risk shall be accepted by LTA subject
to endorsement by the PSR Committee
(Roads).
D
Acceptable
Risk shall be accepted by LTA.
February 2013 Edition
PS-B-168
HAZARD REGISTER STRUCTURE
1
2
Hazard
Code
4
Previous Work
Hazard
Hazard ID Activity
Risk ID
Hazard
No.
3
Running
Number
5
Hazard
Cause
6
7
Initial Risk
Impact Category
Ri
F S Ri
8
Mitigation
Measures
9
10
Future
Residual Risk
Actions
Category
Rr
F
S
Rr
11
Risk
Owner
12
Action
Owner
13
Due Date
By
14
15
16
Risk Exposure
Period
Target Risk
Rating
Status
17
Remark
Definitions of Terms in the Hazard Log
Column
1.
2.
3.
4.
5.
6.
7.
8.
9.
Field Name
Risk ID
Previous ID
Work Activity
Hazard
Hazard Cause
Impact
Initial Risk Category
(Ri)
Mitigation Measures
10.
11.
Residual Risk
Category (Rr)
Future Actions
Risk Owner
12.
13.
14.
15.
16.
Action Owner
Due Date By
Risk Exposure Period
Target Risk Rating
Status
17.
Remark
Description
Numbering system will be advised by the Engineer upon award of contract. Hazard Code refer to the list attached in next page.
The hazard number that was previously assigned to the particular hazard before it was transferred to the current hazard register.
Describes the construction activity that may have risks.
A situation or circumstance in which there is a potential for an accident to occur that may cause injury or fatality to personnel, or damage to system or environment. For example, toxic
fumes are a potential hazard. In many cases, the hazard may be continuously present under normal conditions, referred to as an intrinsic hazard. Note that the hazard is distinct from
the accident, but is rather the circumstances in which the accident may occur.
The events, circumstances or conditions that result in the creation of the hazard.
The result of such hazard i.e. type of accident or incident that may happen if this hazard occurs.
The initial risk assessed prior to mitigation measures is implemented. This is dependent on the frequency (F) rating and severity (S) rating.
Provision of safeguards/control measures for considerations. The risks should be re-assessed to see if either probability or severity rate has been reduced by the proposed mitigation
measures.
The risk assessed when the proposed mitigation measures are in place. This is dependent on the frequency (F) rating and severity (S) rating.
These are additional mitigation measures identified but yet to be implemented.
The person who carries the responsibility for ensuring that the risk is monitored and, where appropriate, effectively managed. They might not be the person who has to do the
necessary actions, but they must continuously aware of the risk and closing-out status.
This is assigned to the person who is best able to control the risk mitigation on site.
Timescale when mitigation measures are to be implemented.
The period the risk will be active for work activity described.
Mitigation rating to be achieved.
Description of current status for the risk, which also include the implementation status for proposed mitigation measures. The status shall be reviewed monthly. Closed-out date shall
be recorded against the status.
Any further comments pertaining to the risks.
**Where the hazards are deleted, the reason for deletion shall be stated clearly in the Hazard Register.
February 2013 Edition
PS-B-169
Hazard Classification Reference Codes
Ref
Category
100
101
102
103
104
105
Earth Retaining Supporting Structures (ERSS)
Temporary Structures
Diaphragm Walling/Piling
Permanent Structures
Ground Conditions
Adjacent Structures or buildings
106
Existing Utilities
107
Existing RTS Stations, Tunnels and Viaducts
108
109
110
111
Existing Road Tunnels and Viaducts
Obstructions
Interface with adjacent contracts
Interface with adjacent developments
112
113
114
Future developments or Addition & Alteration
works
Tunneling
Underpinning Works
115
Demolition Works
116
117
118
119
120
121
122
123
124
125
999
Blasting Works
Construction Methodology
Ground Improvements
Instrumentation
Hazardous Materials
Fire & Explosions
Flooding
Confined Space
Architectural/Glazing Works
Maintenance
Others
February 2013 Edition
PS-B-170
HAZARD ACTION FORM
Hazard Action
Form No:
Hazard No:
Date
Issued
Response
Date Due
Part 1
Actionee / Hazard
Owner :
Additional
Actionee / Hazard
Owner :
Hazard
Hazard Cause
Accident Potential
Initial Accident
Risk
Severity:
Accident Frequency:
Risk Class:
Part 2 – Hazard
Owner(s)
Description Of Action Needed :
Actionee(s) Response :
Name :
Signature :
Date :
Residual Accident
Risk
Name :
Severity:
Accident Frequency:
Signature :
Subsequent Action Raised :  Yes  Action No. :
No
Part 3
Action Review & Status
Decision/Comments On Part 2 :
Risk Class:
Date :

February 2013 Edition
PS-B-171
ANNEX A-n
BUILD ONLY ROAD PROJECTS
CIVIL DESIGN SAFETY SUBMISSIONS
1
Introduction
1.1
The Contractor shall be required to prepare and submit risk
assessment reports for the following stages of the project life cycle:
(i)
Pre-construction Stage
(ii)
Project Handover
1.2
The Contractor shall be given a copy of a Civil Design Safety
Submission prepared by the Authority or its Consultant. The Contractor
shall use it as a base for the preparation of the Civil Construction
Safety Submissions (Civil CNSS). The CNSS can be submitted in
accordance to structural packages and shall be submitted to the
Engineer two (2) months before application for permit to excavate; or
two (2) months before making structural submission to the Building and
Construction Authority (BCA) for temporary works. The Engineer shall
decide on the final timing for the CNSS submission.
1.3
The Contractor shall also prepare and submit a Civil Handover Safety
Submission (Civil HSS). The Civil HSS shall be submitted four (4)
months before the end of the defects liability period (DLP) of the
contract.
1.4
The Accident Frequency, Accident Severity and Risk Index for the risk
assessment and Hazard Register Structure for the Civil DSS, CNSS
and the HSS shall be in compliance with Clause 4 of this Annex.
1.5
The Civil CNSS and HSS shall be subjected to the acceptance of the
Engineer. The Contractor shall make amendments and revise the
Safety Submissions in accordance with the Engineer’s instructions.
2
Safety Submissions
2.1
Civil Construction Safety Submission (CIVIL CNSS)
2.1.1
The objective of the Civil CNSS is to demonstrate that the residual
hazards transferred from the Civil DSS have been mitigated during
construction phase in the specific contract and that the Contractor has
in place the necessary arrangement for managing safety risks.
February 2013 Edition
PS-B-172
2.1.2
The fundamental information to be provided in the Civil CNSS is the
construction health and safety plan that shall include but not limited to
the following areas:
(i)
An executive summary report highlighting the major areas of
concerns and the status of findings.
(ii)
Description of contract work and scope:
(iii)
(iv)
(v)

Major work description and scope;

Programme details; and

Brief details of subcontractors and other consultants.
Communication and management of the work:

Contractor’s Safety Management System prepared
according to the guideline of CP 79. The element on
emergency preparedness shall include a flood protection
plan, a fire safety plan, etc;

Arrangement for monitoring and review of health and safety
performance; and

Arrangement for the exchange of design information
between the developer, designer and contractors.
Hazard management covering:

Proposed mitigation measures
transferred from the Civil DSS;

Temporary works design such as temporary support
structure, false work system, design of decking for support of
road traffic, etc;

Further major hazards identified by the Contractor (besides
residual hazards transferred from Civil DSS) and proposed
mitigation measures for these identified “new” hazards. The
information shall highlight the major construction hazards
that are specific to the contract locality; and

Other envisaged significant health & safety risk during the
construction process and its mitigation measures.
of
the
residual
risk
Environmental control plan (in compliance with ISO 14000).
February 2013 Edition
PS-B-173
2.1.3
The Civil CNSS shall not focus on common construction work activities
such as heavy lifting, hot works, form work erection and etc. These
routine construction work activities shall be addressed through method
statements.
2.2
Civil Handover Safety Submission (Civil HSS)
2.2.1
The objective of the Civil HSS is to provide the operator/maintenance
agencies the necessary information on maintenance hazards and
those residual hazards or information that are relevant to the health
and safety of any future construction work, which includes cleaning,
maintenance, alterations, refurbishment and demolition.
2.2.2
The fundamental information to be provided in the HSS is the Health
and Safety File that shall include but not limited to the following areas:
(i)
An executive summary report highlighting the major areas of
concerns and status of findings.
(ii)
Summary list of information and final as-built drawings of the
structure, including safe working loads for floors and roofs.
(iii)
Key structural principles incorporated in the design of the
structure.
(iv)
Schedule of hazardous substances and location of where they
are used, if any.
(v)
Information on:
(vi)

Maintenance hazards, including hazardous areas;

Specialist manuals for operating and maintenance and
replacement purposes; and

Fragile materials that maintainer must exercise additional
precautions.
Hazards that should be considered during future construction
work on or nearby the premises.
February 2013 Edition
PS-B-174
3
Risk Management Facilitator For The Hazard Identification and
Risk Management Process
3.1
The Contractor shall engaged a professional with at least 10 years
experienced in construction industry and 5 years experience in
construction management, preferably with some design experience
and must be trained in hazard identification and risk assessment
methodology. The Risk Management Facilitator shall be subjected to
the Authority’s acceptance.
3.2
The Risk Management Facilitator shall facilitate the hazard
identification and risk management sessions for the preparations of the
Safety Submissions. The Authority shall be invited to attend these
sessions as observers. The Authority may send representative(s) to
attend if deemed necessary.
3.3
The Risk Management Facilitator shall be the appointed person incharge of the preparation and submission of the Safety Submissions.
The hazard registers are live documents. He shall add new hazards
identified, monitor and update the status of hazards in the register to
ensure that all hazards identified are mitigated and closed.
3.4
The Risk Management Facilitator shall attend the Engineer’s Project
Safety Committee Meetings and any other risk management meetings
as directed by the Engineer.
4
Risk Matrix, Hazard Register Structure and Hazard Action Form
(HAF)
4.1
The Contractor shall prepare the Safety Submissions using the risk
matrix given:
Table 1 :
Likeliho
od
Frequent
Probable
Occasion
al
Remote
Improbab
le
Rating
Accident Frequency
Description
I
Likely to occur 12 times or more per year
II
Likely to occur 4 times per year
III
Likely to occur once a year
IV
Likely to occur once in 5 year project period
V
Unlikely, but may exceptionally occur
February 2013 Edition
PS-B-175
Table 2 - Accident Severity
No Consequence Rating

1
Catastrophic
I



2
Critical
II



3
Marginal
III



4
Negligible
IV


Description(*)
Single or Multiple loss of life from injury or
occupational disease, immediately or delayed;
and/or
Loss of whole production for greater than 3
days and/or
Total loss in excess of $1 million.
Reportable major injury1, occupational disease1
or dangerous occurrence; and/or
Damaged to works or plants causing delays of
up to 3 days; and/or
Total loss in excess of $250,000 but up to $1
million.
Reportable injury2, occupational disease2 ;
and/or
Damage to works or plants causing delays of
up to 1 day; and/or,
Total loss in excess of $25,000 but up to
$250,000.
Minor injury3, no lost time or person involved
returns to work during the shift after treatment;
and/or
Damage to works or plants does not cause
significant delays; and/or
Total loss of up to $25,000.
Note:
(*) If more than one of the descriptions occurs, the severity rating would be
increased to the next higher level. Applicable to item numbers 2 and 3 only.
1
For man-days lost greater than 7 days.
2
For man-days lost between 4 to 7 days.
3
For man-days lost between 1 to 3 days.
Risk Category
Accident
Frequency
Category
Table 3: Risk Index Matrix
Accident Severity Category
I
II
III
Catastrophic
Critical
Marginal
IV
Negligible
I
Frequent
A
A
A
B
II
Probable
A
A
B
C
III
Occasional
A
B
C
C
IV Remote
B
C
C
D
V
Improbable
C
C
D
D
The definitions of the risk indices determined from the Risk Index
Assessment Matrix are presented in the table 4.
February 2013 Edition
PS-B-176
TABLE 4:
Risk Index Description
A
Intolerable
B
Undesirable
C
Tolerable
D
Acceptable
4.2
Definition of Risk Index
Definition
Risk shall be reduced by whatever means possible.
Risk shall only be accepted if further risk reduction is
not practicable.
Risk shall be accepted subject to demonstration that
the level of risk is as low as reasonably practicable.
Risk is acceptable.
For hazards relating to operation and maintenance, the Accident
Frequency, Accident Severity and the Risk Category shall be in
accordance to the definitions given in Table 5, 6, 7 and 8.
Table 5: Accident Frequency
Category
Definition
Frequency Guide
Frequent
Likely to occur often
10 times per year or more
Occasional
Likely to occur several
times
Less than 10 times per year but
more than once per year
Remote
Likely to occur sometime
during the system's
operational life
Less than once per year but
more than once every 10 years
Improbable
Unlikely to occur but
possible
Less than once every 10 years
but more than once every 100
years
Incredible
Unlikely to occur
Once every 100 years or less
February 2013 Edition
PS-B-177
Table 6: Accident Severity
Category
Definition
HIGH
Multiple fatalities and/or severe injuries
MEDIUM
Single fatality or severe injury, with possible other minor
injuries
LOW
Minor injuries or property damage only
NEGLIGIBLE
Property damage only
Table 7: Risk Category
Risk Category
Accident Severity Category
Negligible Low
Accident
Frequency
Category
Medium
High
Frequent
B
A
A
A
Occasional
C
B
A
A
Remote
D
C
B
A
Improbable
D
D
C
B
Incredible
D
D
D
C
Table 8: Definition of Risk Categories
Risk
Category
A
Description
Intolerable
B
Undesirable
C
Tolerable
D
Acceptable
Definition
Risk shall be reduced by whatever
means possible.
Risk shall only be accepted by LTA
if further risk reduction is not
practicable.
Risk shall be accepted by LTA
subject to endorsement by the PSR
Committee (Roads).
Risk shall be accepted by LTA.
February 2013 Edition
PS-B-178
HAZARD REGISTER STRUCTURE
1
2
Hazard
Code
4
Previous Work
Hazard
Hazard ID Activity
Risk ID
Hazard
No.
3
Running
Number
5
Hazard
Cause
6
7
Initial Risk
Impact Category
Ri
F S Ri
8
Mitigation
Measures
9
10
Future
Residual Risk
Actions
Category
Rr
F
S
Rr
11
Risk
Owner
12
Action
Owner
13
Due Date
By
14
15
16
Risk Exposure
Period
Target Risk
Rating
Status
17
Remark
Definitions of Terms in the Hazard Log
Column
1.
2.
3.
4.
5.
6.
7.
8.
9.
Field Name
Risk ID
Previous ID
Work Activity
Hazard
Hazard Cause
Impact
Initial Risk Category
(Ri)
Mitigation Measures
10.
11.
Residual Risk
Category (Rr)
Future Actions
Risk Owner
12.
13.
14.
15.
16.
Action Owner
Due Date By
Risk Exposure Period
Target Risk Rating
Status
17.
Remark
Description
Numbering system will be advised by the Engineer upon award of contract. Hazard Code refer to the list attached in next page.
The hazard number that was previously assigned to the particular hazard before it was transferred to the current hazard register.
Describes the construction activity that may have risks.
A situation or circumstance in which there is a potential for an accident to occur that may cause injury or fatality to personnel, or damage to system or environment. For example, toxic
fumes are a potential hazard. In many cases, the hazard may be continuously present under normal conditions, referred to as an intrinsic hazard. Note that the hazard is distinct from
the accident, but is rather the circumstances in which the accident may occur.
The events, circumstances or conditions that result in the creation of the hazard.
The result of such hazard i.e. type of accident or incident that may happen if this hazard occurs.
The initial risk assessed prior to mitigation measures is implemented. This is dependent on the frequency (F) rating and severity (S) rating.
Provision of safeguards/control measures for considerations. The risks should be re-assessed to see if either probability or severity rate has been reduced by the proposed mitigation
measures.
The risk assessed when the proposed mitigation measures are in place. This is dependent on the frequency (F) rating and severity (S) rating.
These are additional mitigation measures identified but yet to be implemented.
The person who carries the responsibility for ensuring that the risk is monitored and, where appropriate, effectively managed. They might not be the person who has to do the
necessary actions, but they must continuously aware of the risk and closing-out status.
This is assigned to the person who is best able to control the risk mitigation on site.
Timescale when mitigation measures are to be implemented.
The period the risk will be active for work activity described.
Mitigation rating to be achieved.
Description of current status for the risk, which also include the implementation status for proposed mitigation measures. The status shall be reviewed monthly. Closed-out date shall
be recorded against the status.
Any further comments pertaining to the risks.
**Where the hazards are deleted, the reason for deletion shall be stated clearly in the Hazard Register.
February 2013 Edition
PS-B-179
Hazard Classification Reference Codes
Ref
Category
100
101
102
103
104
105
Earth Retaining Supporting Structures (ERSS)
Temporary Structures
Diaphragm Walling/Piling
Permanent Structures
Ground Conditions
Adjacent Structures or buildings
106
Existing Utilities
107
Existing RTS Stations, Tunnels and Viaducts
108
109
110
111
Existing Road Tunnels and Viaducts
Obstructions
Interface with adjacent contracts
Interface with adjacent developments
112
113
114
Future developments or Addition & Alteration
works
Tunneling
Underpinning Works
115
Demolition Works
116
117
118
119
120
121
122
123
124
125
999
Blasting Works
Construction Methodology
Ground Improvements
Instrumentation
Hazardous Materials
Fire & Explosions
Flooding
Confined Space
Architectural/Glazing Works
Maintenance
Others
February 2013 Edition
PS-B-180
HAZARD ACTION FORM
Hazard Action
Form No:
Hazard No:
Date Issued
Response
Date Due
Part 1
Actionee / Hazard
Owner :
Additional
Actionee / Hazard
Owner :
Hazard
Hazard Cause
Accident Potential
Initial Accident
Risk
Severity:
Accident Frequency:
Risk Class:
Part 2 – Hazard
Owner(s)
Description Of Action Needed :
Actionee(s) Response :
Name :
Signature :
Date :
Residual Accident
Risk
Name :
Severity:
Accident Frequency:
Signature :
Subsequent Action Raised :  Yes  Action No. :
No
Part 3
Action Review & Status
Decision/Comments On Part 2 :
Risk Class:
Date :

February 2013 Edition
PS-B-181
Annex A-o
PROTECTION OF SLAB OPENINGS
1.0
Classification of Openings
1.1
The Contractor shall note that the slab openings on site have varying sizes from very
small to very large and they are categorised into three (3) groups.
1.2
Group 1: 300mm wide x any length:
Too narrow for a person to fall through, but wider than their foot and therefore
possible to fall into with potential injuries to shin, knee, thigh or hip.
1.3
Group 2: 300mm – 1000mm wide x any length:
Big enough to fall through, with potentially serious consequences, but too small to
be of use as a service opening. Sumps, pits and future access hatches are excluded
from this group and shall be treated as Group 3 openings.
1.4
Group 3: Greater than 1000mm x any length:
Stairwells, air shafts and service openings are the most common in this category.
2.0
Treatment of Openings
2.1
For each of the groups of openings, the Contractor shall comply with the ‘standard’
solution stipulated in this Section.
2.2
Group1: 300mm wide x any length:
A plywood cover (12 or 18mm thick) bolted or nailed down. Cover to be painted in a
distinctive colour or pattern.
February 2013 Edition
PS-B-182
Note: Yellow was chosen because is distinctive, but any colour or pattern can be
adopted.
2.3
Group 2: 300mm – 1000mm wide x any length:
A13 mesh, fixed to the top steel and cast into the slab. After casting, a plywood
cover can be fitted and secured to prevent debris from falling through.
February 2013 Edition
PS-B-183
A13 Mesh Cast into Slab
Mesh cast with slab provides immediate protection against fall and cannot be
accidentally removed.
Design load on A13 mesh has to be taken as 1.5KN. This is a commonly
used load in ‘Dead and Live Load Tables’ for human traffic.
Mesh is capable of spanning 1200mm under 1.5KN, but has been limited to
1000mm.
Mesh to be hot dipped galvanised.
Embedment length to be 425mm in short span direction.
Plywood Cover
February 2013 Edition
PS-B-184
Cover fitted to prevent debris and materials from falling through. If cover is
removed or becomes damaged the opening is still secure. Cover should be
cut to fit inside the opening thus reducing the trip hazard and also allowing
other works to pass over it.
2.4
Group 3: Greater than 1000mm x any length:
Standard method of railings, toeboards and netting to be provided. Height of
railings to be at least 1.1m high.
Barricade shown above is meant to protect against people. It is not
appropriate for use where vehicle movement is expected. A properly designed
steel structure is recommended in such situations.
3.0
Removal of Mesh
3.1
The Contractor shall note that the Stop-end below the mesh should be
removed during striking of formwork. Stop-end above the mesh can be
removed at the same time or left to serve as a stop-end for future screeding
works (if any). Plywood cover can be cut to suit.
3.2
Removal of mesh shall be undertaken by the Contractor only when the
opening is required by the relevant owner. As the relevant owner is usually a
SWC it is intended that the mesh be removed only when requested by them.
It should not be removed during room handover.
3.3
After removing the mesh, the Contractor should grind the remnant steel flush
February 2013 Edition
PS-B-185
to the opening and make good to the exposed ends using an acceptable anticorrosion treatment (e.g. cold galvanised paint, epoxy paint, etc).
February 2013 Edition
PS-B-186
ANNEX A-p
Photographs Highlighting
Good SHE Practices
February 2013 Edition
PS-B-187
Steel staircase with unobstructed headroom and netting wrapped around
handrail and underneath of steps to prevent loose material from falling through
Handrails (top
and intermediate)
Proper handrails provided at designated site access and walkways.
Toe board and netting are added to prevent loose material from falling over
February 2013 Edition
PS-B-188
Handrails (top
and intermediate)
Proper handrails provided at designated site access and walkways.
Toe board are added to prevent loose material from falling over.
Netting added to prevent loose material from falling down
Platform with handrails provided for signalman to stand on strut
to co-ordinate lifting operation
February 2013 Edition
PS-B-189
Floor opening cover is flushed and secured against moving
Lifting activity is cordoned off and warning signage is placed to
warn personnel against entering the area
February 2013 Edition
PS-B-190
Lifting activity is cordoned off and warning signage is placed
to warn personnel against entering the area
Steel plate
Crane access lined with closely decked steel plates to ensure
stability of crane
February 2013 Edition
PS-B-191
Steel plate
Crane access lined with closely decked steel plates to ensure stability of crane
Lifting gears properly stored and maintained in good condition
February 2013 Edition
PS-B-192
Colour code system implemented to ensure lifting gear is check
thoroughly every month before use
Ventilation fan with fixed mechanical guard to prevent fingers from
coming into contact the moving fan blades
February 2013 Edition
PS-B-193
Sticker label to indicate that powered tool has been checked regularly by LEW
Drill with ATC safety feature has an
electronic device to sense the jamming
of the drill bit and disconnect motor
axle from gear
Powered drill with Active Torque Control (ATC) safety feature (or equivalent)
to prevent uncontrolled spinning of drill when drill bit gets jammed. The
uncontrolled spinning can cause injury to operator
February 2013 Edition
PS-B-194
cable hangers
Proper cable hangers use to hang up cables
Flammable substance stored at designated storage area with warning
signage. Area is locked to prevent unauthorized removal of substance
February 2013 Edition
PS-B-195
Gas cylinders secured in a cylinder trolley to prevent toppling
Fire fighting and first aid equipment readily available at strategic locations
February 2013 Edition
PS-B-196
Height Limit Gantry installed at site entrance/exit to ensure the
total height of the vehicle does not exceed 4.5m
Revolving light
Convex mirror
Site entrance equipped with revolving light and convex mirror to
enhance pedestrian safety. Full-time banksman deployed to guide
vehicles exiting the worksite
February 2013 Edition
PS-B-197
Overhead shelter provided when work is carried out near hoarding
to protect the public from any falling objects
“See through fencing” allows pedestrian to check and ensure
vehicles has stopped before crossing at traffic junction
February 2013 Edition
PS-B-198
Concrete barriers use to protect workers against the possibility
of vehicles crashing into site boundary
Good housekeeping around worksite
February 2013 Edition
PS-B-199
Delineating area
for storage and walkway
Good housekeeping at worksite with designated areas for
storage and walkway
Delineating area
for storage and walkway
Good housekeeping at worksite with designated areas for
storage and walkway
February 2013 Edition
PS-B-200
Delineating area
for storage and walkway
Good housekeeping at worksite with designated areas for
storage and walkway
Good housekeeping. Material storage area separate from
walkway
February 2013 Edition
PS-B-201
Tunnel is well illuminated
Walkway
Continuous walkway with guardrail provided along the tunnel
February 2013 Edition
PS-B-202
Telephone provided at regular
Fire hose reel provided at regular
interval along tunnel to notify of any interval along tunnel for fire fighting
emergency
purpose
Red and Green signal light to regulate locomotive movement in the tunnel
February 2013 Edition
PS-B-203
Locomotive equip with camera to monitor rear view
Light Signals & Headlights
CCTV Camera
CCTV Monitor
Locomotive equip with camera and monitor for rear view.
February 2013 Edition
PS-B-204
Good illumination and housekeeping maintained underneath TBM
Back-up gantry cars
Manchester gate
Manchester gate installed to regulate movement of locomotive in tunnel
February 2013 Edition
PS-B-205
Proper First Aid room equipped with standard first aid items, stretcher and bed
Proper rest areas with tables and chairs provided
February 2013 Edition
PS-B-206
Proper rest areas with tables and chairs provided
Proper rest areas with tables and chairs provided
February 2013 Edition
PS-B-207
Water cooler provided at worksite
Stage provided for safety promotional events
February 2013 Edition
PS-B-208
Safety promotion corner – Display of exhibits to communicate
safety requirements
Coloured Safety posters/articles displayed to communicate safety requirements
February 2013 Edition
PS-B-209
Scanner
Security Guard
Message on computer monitor
Identification
pass
Electronic scanner use to keep track of personnel entering and leaving worksite
Access control to Tunnel using finger print. This method eliminate
the problem of forgetting to bring or loss of identification tags
February 2013 Edition
PS-B-210
Kerb
Security pass exchange area separated from vehicle access to prevent
vehicles driving too near and injuring workers reporting at the security post
Roller gate
Roller gate at the entrance has an advantage over hinged gate as it eliminates the
accidental swinging of gate that can result in hitting man or vehicle
February 2013 Edition
PS-B-211
Use of bund wall to protect silty runoff from
entering the public drain
Adequate use of turbidity curtain for works near waterbodies / waterways
February 2013 Edition
PS-B-212
Full acoustic enclosures used for permanent work areas
(For e.g. launch shafts)
Full acoustic enclosures designed with air ventilation system and
adequate space for plants and machineries to manoeuvre
February 2013 Edition
PS-B-213
Large acoustic enclosures on slurry treatment plants
Large acoustic enclosures on desanding plants
February 2013 Edition
PS-B-214
Large acoustic enclosures used for noisy activities/
machineries (For e.g. excavation activities, launch shaft)
conducted near noise sensitive receivers)
Use of noise enclosures for noisy machineries
(For e.g. power-pack generator)
February 2013 Edition
PS-B-215
Noise enclosure on D-wall cutter machine
Total noise enclosure on crane
February 2013 Edition
PS-B-216
Noise enclosure on boring rigs
Noise enclosure on D-wall cutter for ventilation fans
February 2013 Edition
PS-B-217
Use of sound-reduced machinery
Use of silent-piling machine (for suitable soil conditions)
February 2013 Edition
PS-B-218
Use of modified auger bucket (suitable for sticky soil conditions)
Modification of auger bucket involves:
•
Introducing a sliding steel plate separator
•
Creating two separate chambers with associated cutter
•
With this modification, soil discharge can be done simply using spinning
action alone
Sliding steel plate separator will drop like a trap door, pulling down stuck soil
by gravity and allow the use of centrifugal force to spin out the soil, instead of
using inertia in the usual spin and lock method to discharge soil in the
standard auger bucket. This thus results in a reduction of the high-pitched
intermittent “metal-clanking” noise level from 97dB (5m from the source) to
83dB.
February 2013 Edition
PS-B-219
Top opening of treatment plant (that is temporarily not in
use) is covered with anti-mosquito netting
Provision of adequate and sheltered bins for containment
of wastes
February 2013 Edition
PS-B-220
Valve
Use of valve during diesel refill
By having this valve, diesel refill can be done in a more
controllable manner thus preventing spillage.
February 2013 Edition
PS-B-221
Arresting of dust at source using recycled water
Use of ‘green’ hoardings to beautify the site and to reduce the
impact from traffic carbon emissions
February 2013 Edition
PS-B-222
ANNEX A-q
Good Housekeeping
Photographs
February 2013 Edition
PS-B-223
1. Well organised site with proper hoardings and barricades
2. Opening is covered with netting when not in use
3. Separate area for material handling and access for workmen
PHOTOGRAPH 1
1. Proper hoardings and entrance barricade
2. Roadway and pedestrian walkway are well maintained and
separated from good barricades
3. Warning lights are provided on hoardings abutting roadway
PHOTOGRAPH 2
February 2013 Edition
PS-B-224
1. Proper hoardings and barricades
2. Materials are neatly stored within worksite
PHOTOGRAPH 3
1. Well organised site
2. Proper barricades separating works area, roadway and pedestrian
walkway
3. Materials are neatly stored within the works area
PHOTOGRAPH 4
February 2013 Edition
PS-B-225
1. Well organised pedestrian crossing
2. Traffic controller with proper attire and light baton
PHOTOGRAPH 5
1. Prominent directional signs at walkway within site
PHOTOGRAPH 6
February 2013 Edition
PS-B-226
1. Proper staircases, walkway and barricades
2. Sufficient lighting
3. Proper warning signs and directional signs
PHOTOGRAPH 7
1. Proper warning signs
2. Proper protection against potential hazards
PHOTOGRAPH 8
February 2013 Edition
PS-B-227
1. Proper directional sign
2. Warning light and emergency light at escape route
PHOTOGRAPH 9
1. Barricade around high voltage equipment
2. Proper warning signs
PHOTOGRAPH 10
February 2013 Edition
PS-B-228
1. Proper storage of hazardous material
2. Proper warning signs
PHOTOGRAPH 11
1. Barricade for rail bound tunnelling support equipment
2. Proper refuse container
PHOTOGRAPH 12
February 2013 Edition
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement