Traffic guide simulation system with four intersections

The urban road traffic jam mainly occures at some representive intersections.The paper brings forward the traffic guiding simulation system model framework in which four intersections are taken into account as the objects.The factors that affect the choosing of intersection are discussed.If the traffic flow at each intersection is regarded as queue affair, the conflict should take place between the traffic flows at different intersections.The expert system polls the traffic flow queue affairs at the intersections one by one by combing the event driven state transfer with expert system technology to resolve the affairs conflicts.Meanwhile, the objectives and functions of simulation system modeling, and system state such as intersections, lanes, phases and cycle length are described.