Patent ID: 7026958

Claim:
A system for communicating traffic information to a mobile user, comprising: a traffic information station for aggregating and transmitting aggregated traffic information of segments of a road network; an uplink communicator for transmitting said aggregated traffic information; at least one satellite for receiving said aggregated traffic information from said uplink communicator and transmitting the received aggregated traffic information; a receiver for receiving said transmitted aggregated traffic information from said at least one satellite; a navigation system for receiving said transmitted aggregated traffic information, processing said traffic information and delivering to a driver interface to permit said mobile user to receive the navigation system for reporting traffic congestion information at said segments of said road network; and a system for collecting traffic information in segments of a road network and wireless transmission of the traffic information, the system comprising; a plurality of receiving station spaced apart along said segments of said road network for receiving measured speed and location information and transmitting the measured speed and location information to said traffic information station; a tracking device installed on each of a plurality of probe vehicles for detecting and transmitting measured speed and location information for said each probe vehicle; a transmitter coupled to said tracking device for transmitting said measured speed and location information to a respective one of said plurality of receiving stations of the traffic congestion existing at a particular location; and wherein said traffic information station receives and stores said measured speed and location information from the receiving station.