考虑诱导影响的公交优先信号配时模型  

Bus priority signal timing model considering the influence of traffic guidance

作　　者：魏丽英[1] 李鸣君 

机构地区：[1]北京交通大学交通运输学院,北京100044

出　　处：《吉林大学学报（工学版）》2016年第3期777-784,共8页Journal of Jilin University:Engineering and Technology Edition

基　　金：'973'国家重点基础研究发展计划项目(2012CB725403);国家自然科学基金青年基金项目(71101008;61473028);国家留学基金项目

摘　　要：考虑了诱导信息对交叉口小汽车驾驶员路径选择的影响,建立了替换路径概率选择模型和交通状态实时更新模型,共同约束信号配时模型的求解,进而得到交通诱导与公交优先协同作用的交叉口信号配时模型。应用改进遗传算法对优化模型进行求解,求解结果显示模型中考虑诱导信息影响后,乘客总延误、车辆总延误、人均车辆尾气排放降低幅度分别为4.4%、2.8%和1.4%,说明通过合理诱导交通流,可以一定程度上降低路网整体负荷、减少尾气排放。In this paper,aprobability detour path choice model and a traffic state updating model were established,considering the influence of traffic guidance information on car drivers＇ route choice at intersection.These models were considered as two important constraints.Then,an optimal signal timing model was built under the coordination control of traffic guidance and bus priority.An improved genetic algorithm was applied to solve the optimization model.Results show that the total passenger delay,vehicle delay and the exhaust emissions per capita are reduced by 4.1%,2.8% and1.4%respectively after considering the influence of traffic guidance information.It is certified that the goals to reduce the overall traffic network load and vehicle exhaust can be achieved to certain extent by reasonable traffic guidance.

关 键 词：交通运输系统工程 交通诱导信息 公交优先 尾气排放 信号配时 改进遗传算法 

分 类 号：U491.2[交通运输工程—交通运输规划与管理]