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有专左相位信号控制交叉口拓宽车道长度研究
Research on the Length of Widening Lane with Left-Turn Signal of Signal Controlled Intersection
【摘要】 通过对交通量、饱和流率、平均车头间距交通流参数的数理分析,定量地研究了有专左相位的左转专用拓宽车道长度。建立了数学模型,开发了计算软件,得出不同拓宽长度下的通行能力损失系数。经比选,得出车道长度的优化值。实例分析,运用vissim仿真对优化前后进行对比,验证了模型的正确性、可操作性。
【Abstract】 Through mathematical analysis of traffic flow parameters(volume,saturation flow rate,spacing),quantitive research of the length of widening lane with left-turn signal is carried out.Furthermore,the mathematical model is founded,and the computing software is also developed.The reduction factors of capacity at different widening lengths are obtained.vissim simulation is adopted to compare the results before and after optimization,which is verified the correctness and feasibility of the model.
【关键词】 拓宽车道；
左转专用车道长度；
通行能力损失系数；
vissim仿真；
【Key words】 widened intersection； left-turn lane； reduction factor of capacity； vissim simulation；
【Key words】 widened intersection； left-turn lane； reduction factor of capacity； vissim simulation；
- 【文献出处】 重庆交通大学学报(自然科学版) ,Journal of Chongqing Jiaotong University(Natural Science) , 编辑部邮箱 ,2010年03期
- 【分类号】U491.23
- 【被引频次】6
- 【下载频次】189