基于换乘重要度的轨道交通网络运营计划协调优化

Stepwise Coordination Optimization of Urban Rail Transit Operation Schedule Based on Importance of Transfer Nodes

为提高城市轨道交通整体网络运营效率,提升客运服务水平,以轨道交通乘客出行需求为导向,提出换乘关系综合重要度的衡量指标,以此为依据建立网络运营计划分步协调优化模型及算法,旨在减少乘客换乘候车时间,实现提高换乘站内乘客换乘便利性目的。以某市线网为例进行协调优化,验证模型算法的有效性。算例分析表明,经分步协调后全网平均换乘候车时间缩减了12.42%,乘客单次换乘候车平均节省0.39 min,能够有效地缩减乘客的换乘候车时间,优化网络运营计划衔接状态,提升线网换乘效率。

In order to improve the overall network operation efficiency of urban rail transit and its service,an index which measures the integrated importance of transfer nodes is put forward. Based on this,a coordinated optimization model and algorithm of network operation schedule are established with the consideration of passenger demand. This model aims at reducing the passenger transfer waiting time and facilitating the transfer of passengers in the transfer station. Finally,the proposed method and algorithm are applied in a real rail transit to validate the effectiveness. The results show that after the coordination step by step,the average waiting time of the whole network has been reduced by 12.42%,saving 0.39 minutes for passengers. It proves that the model and algorithm can effectively reduce passenger transfer waiting time,optimize the coordination of network operation schedule,and improve the transfer efficiency of the whole network.