转向概率对H型元胞自动机的交通流特性研究

H型路口在城区窄车道处非常易见，以N-S元胞自动机模型为基础，在开放边界条件下，交叉口处车辆转向概率会对交通流产生一定的干扰作用，以此建立H型元胞自动机模型。通过研究转向概率和红绿灯设置对交通流的特性影响，指出量变点的位置与转向概率大小，平均速度有密切联系，红绿灯配时差异减少转向车辆干扰，增加交通流量，同时分析临界转向概率对交通流控制的意义。

Traffic flow characteristics research of redirecting probability to H-type cellular automata

H-type crossroads in urban areas of narrow lanes place are very easy to see, this paper sets up N-S cellular automata model as the foundation, in the open boundary conditions, the traffic vehicle redirecting probability produces certain effect to interference with intersection, and so as to  build up the H-type cellular automata model. Through the research to redirecting probability and characteristics influence of traffic lights setting to traffic flow, it points out that among the influence of phase change point position and redirecting probability and the average velocity is closely related, traffic lights timing differences can reduce vehicle interference to increase traffic flow, at the same time, it analyzes the critical redirecting probability of traffic flow in controlling significance.