Fuzzy Controller of Single Intersection Based on Video Traffic Detection System

Currently, intelligent transportation system has been becoming the focus of the society. The video traffic detection system discussed in the paper plays an important part in the ITS, and the image processing technique is used in this system to obtain all the information that is needed in the traffic signal control. On the basis of a new fuzzy control method, the article analyses the problem of traffic signal control in single intersections, proposes the multiple phase fuzzy control algorithm and designs fuzzy controller which takes motorcade´s lengh and the next phase difference of motorcade lengh as the fuzzy control variable, thereby creating a real-time, accurate, highly effective and comprehensive transportation system. The simulation result indicated that this plan approaches human´s decision-making process, surpassed the timed control, can effectively alleviate the jam of intersection.