Self-propelled vehicle safety urging system, self-propelled...

Speed limit control system

Speed limit display in a vehicle

Speed limit enforcer

Speed trap detection and warning system

Surface condition sensing and treatment systems, and...

Surface material and condition sensing system

Surface material and condition sensing system

Surveillance apparatus for a vehicle

System and method for communicating location and direction speci

System and method for electronic road signs with in-car...

System and method for electronic road signs with in-car...

System and method for speed limit enforcement

System and method to wirelessly communicate information...

System for aggregating traveler information

System for providing site-specific, real-time environmental...

System for traffic information acquisition in vehicles

Systems and method for monitoring and controlling a vehicle...