Vehicle Behavior Of Traffic Accident In Traffic Tunnel Model And Simulation

This thesis presents the development situation of traffic tunnel construction and traffic simulation, and analyses the traffic characters of traffic tunnel from environment and running mode of vehicles. Then, traffic flow model and traffic guidance and control of traffic tunnel are analyzed.This thesis analyses and studies several essential vehicle behavior models in traffic simulation, including stimulating-reaction model, collision avoidance model, action point model, obscured reasoning model, desired spacing model, imperative lane changing model, and selective lane changing model.This thesis analyses and studies the characters of traffic tunnel accidents from space distribution, traffic patterns, and traffic characters. New models of vehicle behavior in traffic tunnel are built, including improved car-following model and improved lane changing model, combining the traffic characters of traffic tunnel. Then, the specific vehicle behaviors of crowed accidents, general traffic accidents and fire accidents are analyzed.This vehicle behavior in traffic tunnel has been realized with Visual C++ 6.0 finally. In the two-hole two-way four-lane about 3 kilometers traffic tunnel, which has three car-crossing channels every 750 meters. Based on built car-following model and lane changing model, combining traffic guidance and control strategies, this model is simulated and tested in the computer. The result is similar with the fact. It proves that the models have practical significance.