I found another on line geocoding service (http://www.geocode.com/) that seems to have reasonable rates and is run by TeleAtlas. TeleAtlas is one of the premiere geocoding data sources in the US. This is the data set most of the on line mapping systems use to resolve address information to a set of coordinates. As I have mentioned in other emails, the accuracy and quality of the results will be greatly affected by the standardizations of your street address information as compared to the official USPS recognized address database (and RR address information is very hard to deal with, if you can add zip+4 it will work better). With their desktop software tool they will return the census tract and block information as part of the results. The tool will attempt to standardize the address information.
TeleAtlas publishes a very nice document that shows the output formats and describes the address geocoding methods and the specific details on standardization of street address data. Well worth a read for those interested in cleaning up their customer address databases for more successful mailings and/or mapping of their customer locations. http://www.geocode.com/documentation/USA_Geo_002.pdf Thank You, Brian Webster -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
