基于概率模型的交叉口感应信号控制研究

摘要

考虑多种因素影响下初始绿灯时间和车辆到达服从概率分布特征，提出了1种交叉口感应控制最大绿灯时间优化模型，以交叉口平均延误、停车次数、排队长度为评价指标，利用 Vissim 仿真软件，将该模型与传统感应控制模型进行对比。仿真结果表明提出的算法在不同的饱和度下改进效果比较明显，尤其当交通量较大、饱和度较高时，传统感应控制效果有限，采用该模型的改进效果依然显著。%Under the influence of various factors the initial green time and vehicles arrivals obey probability distribu -tion properties .This research proposes a new intersection actuated control model for optimizing maximum green time by using average delay ,number of stops ,and queue length as evaluation indicators .By using the Vissim simulation soft-ware ,the model is compared with the traditional actuated control models .Simulation results show that the proposed algo-rithm shows better improvement under different vehicle saturation levels ,where the traditional models can only have lim-ited success .