Radar based highway safety warning system
Radar/laser detection device with multi-sensing and...
Radio frequency highway management system
Radio frequency identification tag and a method of operating...
Radio linked vehicle communication system
Radio warning system for hazard avoidance
Railroad advance warning system
Rear collision warning system
Rear monitor system triggered by occupant leaving the vehicle
Rear-view monitor for use in vehicles
Rearward obstruction sensing system for automotive vehicle
Receiver for traffic messages
Receiver for use in a remote keyless entry system and for receiv
Recreational vehicle passing warning device
Reflectivity measuring apparatus and method
Relative visibility measuring process and device
Reliable obstacle detecting driving support apparatus
Reliable packet delivery protocol for geocast protocol in...
Remote traffic signal indicator
Retrieving and presenting dynamic traffic information