XM said its satellite information service for GPS navigation will add 29 markets.
The cities include New Orleans, Richmond, Tucson, Tulsa and Albany.
It also said it is expanded traffic data coverage in Houston, Sacramento, San Francisco and St. Louis. XM said NavTraffic subscribers now have access to traffic data in 79 North American markets. The service sends data about incidents to a vehicle’s GPS navigation system via the XM feed; alerts show up on the navigation screen. Traffic data is aggregated by NAVTEQ Traffic.
