The research of intelligent timing control system for urban traffic signal light

With the rapid increase of the urban vehicle´s number, the contradiction between the vehicle and road has become increasingly remarkable, and the bottleneck effect of the intersection has become more striking. Practices have proved that reasonable controlling on traffic signal light in the city and designing reasonable signal timing control system can play a significant role in solving the problems such as traffic pollution and traffic energy consumption. Meanwhile, it can contribute to the implementation of the security, speediness and comfort of traffic flow. Based on the characteristics of the urban road traffic flow, this article puts forward an optimization timing plan of the synchronous change of signal lights timing and traffic flow rate in the single intersection, and evaluates the data through computer simulation. The results show that the number of queuing vehicles after being optimized reduces by 30% than that before optimization.