基于灵活停站时间的轨道交通网络末班车接续优化

为提高城市轨道交通网络末班车换乘接续效果,以换乘客流时空分布特征及列车运行过程为基础,采用数学规划方法,选取末班车发车时刻及停站时间为决策变量,以有效换乘客流量最大化为目标,构建末班车协同接续优化模型,并利用CPLEX优化软件进行求解.以北京市轨道交通网络为对象进行实证研究,与实际列车运行计划对比分析的结果显示:有效换乘客流量增加12.4%,末班车协同接续数量提高8.2%,表明所构建方法能较好地提高末班车接续效果.

Coordination Optimization of Last Train Connections in Urban Rail Transit Network Based on Dwell Time Adjustment

In order to optimize the coordinated connections of the last train in urban rail transit network, an linear programming model of the last train coordination timetable was proposed based on the temporal and spatial characteristics of transfer passengers and train operation. The model aimed to maximize the number of successful transfer of passengers and reasonably determined the last trains' departure time and dwell time,and the model was established by CPLEX. Finally, a real network of Beijing subway was applied to verify the efficiency and accuracy of the proposed model, and the results indicate that the successful transfers of passengers increase by 12.4%,and the number of coordinated trains is improved by 8.2%. The conclusion suggests that the proposed approach can effectively enhance the last train coordination effects.