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本文采用改进后的Webster算法对十字交叉路口的信号进行了配时,利用VISSIM软件对十字交叉路口进行了两次仿真,分别是无左转弯待行区时的仿真和有左转弯待行区时的仿真。此外,通过仿真进行了分析,提出了左转弯待行区实施后十字交叉路口的实际运行情况,仿真结果表明设置左转弯待行区对于缓解十字交叉路口的交通拥挤具有一定的缓解作用。对仿真结果分析发现,设置左转弯待行区后,十字交叉路口左转进口道路通行能力平均提高了3.8%到5%。结果表明,十字交叉路口设置左转弯待行区后,在不影响行车安全的情况下,提高了信号交叉口的通行效率,增加了十字交叉路口的车流通过量。
In this paper, the modified Webster algorithm is used to match the signals at the crossroads. Two simulations are carried out on the crossroads with the VISSIM software, which are the simulation without turn left corner and the left turn corner Simulation. In addition, the simulation is carried out to analyze the actual operation of the crossroads after the left turn of the pedestrian zone is implemented. The simulation results show that setting the turn left pedestrian zone can alleviate the traffic congestion at the crossroads. The simulation results show that after setting the left turn pedestrian zone, the traffic capacity of left turn road at crossroads increased by 3.8% to 5% on average. The results show that after setting the left turn waiting area at a crossroad, the traffic efficiency of the signalized intersection is improved without increasing traffic safety, which increases traffic flow at the crossroads.