A multi-level route-planning algorithm based on real-time traffic information in embedded environment is proposed in this paper,which can avoid some jam-packed roads at some extent in the embedded computing environment with the feature of small memory and low frequency CPU,and meet the requirements of real-time dynamic navigation application using traffic information.

Based on the analysis of vehicle navigation status and vehicle static navigation shortage,and data fusion technology of real-time GPS data and overhead road loop coil detector data,the architecture of real-time traffic information service system of dynamic oriented navigation is presented,which realizes the urban road traffic state estimate.

To utilize real-time traffic information,increase the road network utilization and reduce the traffic jam,a kind of intelligent traffic system RTIC is presented.

the traditional Vehicle Navigation System was not the ability to capture the real time traffic information,this system did not manipulate the suddenly-happened traffic addition.

With probe vehicles using wireless location technology,the real-time traffic information collection was explored.

To offer traffic information services and then to reduce traffic jams,by researching the international real-time information technology,a new kind of real-time traffic information system GPRS-TMC is designed based on the status of road network and communication service,and in the system the traffic message is transported by GPRS.