TRAFFIC ANOMALY DETECTION METHOD BASED ON TIME DISTRIBUTION OF TRAVELS

摘要

A traffic anomaly detection method. By using a vehicle-mounted GNSS positioning device of a floating vehicle, spatial position information on different time points can be obtained; and by means of the analysis and excavation of a great quantity of track information of the floating vehicle, a traffic anomaly event of an urban road can be smartly detected. In the method for detecting a traffic anomaly, a traffic state is indicated by using the probability distribution of travel time, a traffic state difference is reflected by using probability distribution difference measurement indictors; compared with the prior art, the present invention has the characteristics: the principle is clear, the implementation is simple and convenient, and the detection rate is high.