2010 DMTI Spatial Inc.
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Defining The Geocoding Path
(cont’d)
Geocoding Precision
Geocoding precision depends on two things:
1) The input data that is being geocoded
2) The level of geocoding precision the user wishes to achieve
First, input data is important to consider when trying to achieve a certain level of geocoding precision
(e.g.: To address). For example, if a user was to select the address geocoder by municipality
– the input record must contain the following address components (unparsed or parsed) in order to geocode:
Address Number
Street Name
Street Type
Street Direction
Municipality
Province
Refer to the geocoding function sections below to obtain more information on what is expected by each geocoding module when they geocode input data.
For those times when the address information is incorrect or missing for the address geocoder to find a match, the GeoPinpoint Suite software allows the users to select functions which will assist in the geocoding process. For example, the record has the address number and street name but is missing the street type
– in this situation, a relax type function may be warranted such as the „Relax on Street type‟ function can be used.
Refer to Input Specifications
– General Geocoding options section for more details.
Secondly, the user may determine that they only need to geocode their data to postal code centroid, as this level of precision satisfies their project data requirements. For example, a user may have a database with address records but only wishes to geocode to postal code. As long, as postal code data exists within the database
– the software will return the user-defined precision to the user.
Note: If all of the geocoding functions are initialized
– GeoPinpoint Suite will follow the geocoding sequence outlined in Appendix 6: Geocoding Sequence.
Each geocoder (address, POI, postal code, segment) module has functions that either geocode to By
Municipality and FSA or By Municipality or By FSA. These types of functions are common to all of the geocoder modules listed below.
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