A Multiphase Car-Following Model of Traffic Flow and Numerical Tests
we present in this paper an empirical desired headway model for a single lane car-following theory based on the equation of motion of each vehicle.In this new model,traffic situation is suggested to be divided into car-following and free travel regions,and in car-following area the stimulus is a function of space difference between the current headway and the empirical desired headway with a constant sensitivity.We investigate this model with numerical method and it demonstrates some complex physical features observed in real traffic such as existence of three phases:free,synchronized,and jam flow; spontaneous formation of traffic jams;sudden flow drop in flow- density plane;local cluster effects in synchronized regime;traffic hysteresis in transition between the free and the synchronized flow.Furthermore,the proposed model also predicts that in the synchronized flow regime there exists a unique stable state to relative density,which is insusceptible to noise.
car-following models inter-vehicle spacing traffic flow
Zhipeng Li Fuqiang Liu Yuncai Liu
Department of Information and Communication Engineering Tongji University Shanghai,201804,China Institute of Image Processing and Pattern Recognition Shanghai Jiao Tong University Shanghai,200240,
国际会议
2007 IEEE International Conference on Automation and Lofistics
山东济南
英文
2007-08-18（万方平台首次上网日期，不代表论文的发表时间）