Geographic Data Technology, Inc., a developer of premier map databases, today announced the release of new versions of its Dynamap® family of street and address products with verified positional accuracy for areas representing more than 50 percent of the U.S. population. GDT has realigned 1.27 million miles of roads throughout the United States to an accuracy level of 5 to 12 1meters. GDT’s positional enhancement efforts augment the database accuracy to better model real-world conditions while still maintaining detailed and complete street and address attribute information. The January releases of GDT’s Dynamap products represent an 83 percent increase in the number of miles of positionally accurate streets and an 11 percent increase in new streets and addresses over the last year. As the industry’s most experienced manager and compiler of geographic data, GDT offers customers detailed, enhanced, coast-to-coast coverage of streets and addresses in the U.S. and Canada for location-based applications such as in-car navigation, personal navigation systems, telematics, and web-based mapping. To verify and test the accuracy of its realignment efforts, GDT uses the National Standard for Spatial Database Accuracy (NSSDA), the standard released by the Federal Geographic Data Committee in 1998 to replace the obsolete National Map Accuracy Standard.