Product: MapMarker
Version: 6.0
Platform: Not Platform Related
Category: Geocoding Issues
Summary:
Mapmarker 6.0 and questionable Geocoding results.
Question:
In geocoding the table below it is required to geocode records to an S3 or above hit rate, and anything below S3 to be coded to a Z3. All other records may
remain unmatched. When geocoding to street level, MapMarker outputs the zip and zip+4 back to the table as if it found the records, yet it will give them an S1 or S2 georesult code. Why would it do this if a Z3 is more accurate, and if MapMarker supposedly found the zip+4 record?
If Mapmarker outputs zip+4, why would it give only S2 or S1 georesults?
Answer:
MapMarker Data is made from 2 sources: Tiger(the actual Points) and USPS (Street names, Zip codes and the like). When the MapMarker product is created, the two sources are combined but sometimes have a Zip and Zip+4 record with no point(object\coordinate location). This is why MapMarker will return the complete Zip+4 but only a match to Zip centroid or Zip+2 position.
Note: S3 and Z3 are the same accuracy.
Last Modified: 09/05/2000 02:25:06 PM
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