Urban traffic congestion has become one of the problems that plague big cities in China. The congestion of key nodes is more obvious in big cities, such as intersection congestion. In developing countries represented by China, the phenomenon of mixed traffic is very prominent. At intersections, the conflicts among bicycles, pedestrians and motor vehicles are also very significant. This not only leads to the decline of traffic efficiency, traffic jams and other issues, but also affects the safe travel of residents, and is not conducive to the promotion of people-oriented traffic concept. Traditional actuated control is suitable for the intersections with small traffic flow and big stochastic volatility. This paper proposes an improved actuated signal control algorithm based on Intelligent Vehicle Infrastructure Cooperative Systems by the relative theory of delay mechanism of inductive signals control between vehicles and pedestrian, the theory of signals timing while crossing and theory of decision making. Based on classical actuated control, a concept of traffic priority is put forward. Dedicated Short Range Communications (DSRC) technology is used to collect the traffic volume data and queue length and vehicle delay data are calculated by detectors. In order to verify the validity of the method, this paper takes a single intersection as the research object, using the VISSIM traffic simulation software to analyze the traffic signal control indexes of the improved actuated control method and the fixed control method in different stages. Simulation results prove that the improvement of the proposed algorithm is significant, especially when the traffic volume is heavy and the saturation is high, the proposed algorithm is still outstanding comparing with traditional algorithm.

CICTP