基于乘客均衡候车的轨道交通协同限流建模

Modeling of flow co-control among multi-stations based on passenger equilibrium waiting for urban rail transit

城市轨道交通大客流呈现非均衡、非稳态、非线性特征,直接影响乘客服务水平和列车运行可靠性,是车站客运组织管理中的重要环节.在分析大客流条件下乘客候车延误影响因素的基础上,考虑列车周期性运行特性,并抽象乘客到达规律符合均匀分布,以各站乘客均衡候车为优化目标,构建线路层车站间的单目标多约束协同限流模型,并基于Matlab非线性规划fmincon函数进行求解.算例分析结果表明,该方法能从线路大客流均衡管控的角度缓解运能与运量之间的矛盾,避免局部车站客流积压严重,具有有效性和合理性.

Mass passenger flow in urban rail transit always presents non-balanced,non-steady and non-linear feature. Flow control becomes the main process in passenger organization management since it would directly influence the passenger service level and train operation reliability. According to the train periodic running characteristics and simplifying the arrival of passengers in accordance with the law of uniformity based on analyzing delay influence of passenger waiting time under the condition of mass passenger flow, this paper presents co-passenger flow control model among multi-stations in a single line,aiming to balance the passengers＇ waiting time in each station. The fmincon function provided by Matlab is used to find the optimal value. The result analysis of a simulation case shows that the model is effective and reasonable to alleviate the contradiction between transport capacity and traffic volume from the angle of equal control of mass passenger flow and to avoid some stations of the line having large number of stranded passengers.