Intersection Traffic System Simulation Based on Hybrid CPN Model

Intersection traffic network in city is a hybrid dynamic system, which combines discrete factor with continuous behaviors. Characterized by dynamics,concurrence and synchronization, it is hard to simulate accurately. A modeling method based on farraginous CPN(colored petri net) is constructed in this paper. Objects of traffic system are classifying with coloration, and granting-time mechanism is introduced to enhance real-time performance. A petri net with two floors inside and outside,which is originally created, connects discrete and continuous events of crossway traffic system. Finally, on the basis of the CPN model, further research will be carried out smoothly.