> Industrial News > News   Navteq Release New Historic Road Speed Database for North America   NAVTEQ today has announced the availability of NAVTEQ Traffic Patterns North America v3.0, an updated historic database which includes typical traffic speeds on nearly one million miles of primary and secondary roads across the United States, Puerto Rico and Canada. This database is created using historical observations from GPS probe and sensor data which is aggregated, verified and then matched to traffic location codes in the NAVTEQ Map database. "NAVTEQ Traffic Patterns v.3.0 demonstrates up to 33% improvement in travel time accuracy when compared with typical speeds and posted speed limits on freeways and surface roadways," commented NAVTEQ official. This new version also integrates a holiday traffic appendix featuring historical traffic patterns for national holidays in the U.S. and Canada.   Time:2008-06-04 Source:NaviForum Shanghai News Center Relative