Geographic determination describes both the spatial relationship between two entities and the degree of confidence in that description. High confidence determinations, based on any level of geocoding (address, ZIP + 4, ZIP + 2, or ZIP Code), are critical for many geographically-sensitive business decisions.
Given a geocoded address, the Geographic Determination module provides a confidence factor and associates it with the geocode so that additional rules may be applied. This confidence factor is either a distance value (between two points or lines), or a percentage representing the amount of overlap between two polygons.
Changing the location of Centrus data files explains how to select a file for processing. Once you have performed these steps, you can specify the search distance and buffer width, assign outputs, and then click Processon the task bar to process the file or configure a different module.
There are two parameters that you can use to enhance your Geographic Determination processing.
| Option | Description |
|---|---|
| Search Distance |
Distance, in feet, that Centrus Desktop looks for a site. The default search distance is 5280. For example, Centrus Desktop finds the distance within 5280 feet of the point and assigns a confidence level. |
| Buffer Width | Distance, in feet, that Centrus Desktop maps the polygon. The default is 100 feet. For example, Centrus Desktop finds the distance within 100 feet of the boundary and creates a polygon around it. |