The invention provides a real-time road condition prediction method and a real-time road condition prediction system. The real-time road condition prediction method comprises the steps of calling road topological structure information and acquiring a vehicle driving speed of a current road at a current moment through a road server, acquiring passing rate, a diverging flow direction matrix and a diverging matrix of the current road in sequence, and iterating the passing rate of the current road at the current moment and the diverging matrix of the current road on the basis of Markov process to obtain passing rate of a prediction road at a predetermined moment. Since the passing rate of the current road at the current moment equals a ratio of the vehicle driving speed of the current road at the current moment to a speed limit of the current road, and the speed limit of each road can be obtained directly through the road topological structure information, the vehicle driving speed of the prediction road at the predetermined moment can be derived through a back-stepping process just by acquiring the passing rate of the prediction road at the predetermined moment, the real-time road condition of the prediction road is obtained directly, the prediction precision is increased, and the real-time road condition prediction method and the real-time road condition prediction system have the advantage of universality.
Real-time road condition prediction method and system
2016-01-13
Patent
Elektronische Ressource
Englisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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