Geo-variance Buffer Generation - geographicdeterminationlibrary - 2024.00

Geographic Determination Library Reference for Windows and z/OS

Product type
Software
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Product family
GeoStan Geocoding Suite
Product
GeoStan Geocoding Suite > Geographic Determination Library
Version
2024.00
Language
English
Product name
GeoStan Geocoding Suite
Title
Geographic Determination Library Reference for Windows and z/OS
Topic type
Reference
Copyright
2024
First publish date
1994
ft:lastEdition
2024-05-09
ft:lastPublication
2024-05-09T00:55:21.277227

GeoStan performs geocoding based on address data. A geocode, i.e., the latitude/longitude coordinates associated with an address, can have one of four basic levels of quality associated with it. This quality level is determined by the address information provided and the data available in a data look-up table.

GDL uses this quality level to create a polygon or geo-variance buffer around the geocoded point. This polygon describes the maximum probable geographic variance that point may have. For example, an address level geocode may have a variance of +/- 165 feet East/West and +/-50 feet North/South. The geo-variance polygon outlines the boundary of this 33,000 square foot area. Once this buffer has been calculated, it can be compared to other spatial objects for accurate determinations.