Last train timetable optimization for metro network to maximize the passenger accessibility over the end-of-service period  

作　　者：Fang Wen Yun Bai Xin Zhang Yao Chen Ninghai Li 

机构地区：[1]Key Laboratory of Transport Industry of Big Data Application Technologies for Comprehensive Transport,School of Traffic and Transportation,Beijing Jiaotong University,Beijing,China [2]Government Service Center of Beijing Municipal Transport Commission,Beijing Boats Inspection Center,Beijing,China

出　　处：《Railway Sciences》2023年第2期273-288,共16页铁道科学（英文）

基　　金：supported by Talents Funds for Basic Scientific Research Business Expenses of Central Colleges and Universities (Grant No.2021RC228);Special Funds for Basic Scientific Research Business Expenses of Central Colleges and Universities (Grant No.2021YJS103).

摘　　要：Purpose-This study aims to improve the passenger accessibility of passenger demands in the end-ofoperation period.Design/methodology/approach-A mixed integer nonlinear programming model for last train timetable optimization of the metro was proposed considering the constraints such as the maximum headway,the minimum headway and the latest end-of-operation time.The objective of the model is to maximize the number of reachable passengers in the end-of-operation period.A solution method based on a preset train service is proposed,which significantly reduces the variables of deciding train services in the original model and reformulates it into a mixed integer linear programming model.Findings-The results of the case study of Wuhan Metro show that the solution method can obtain highquality solutions in a shorter time;and the shorter the time interval of passenger flow data,the more obvious the advantage of solution speed;after optimization,the number of passengers reaching the destination among the passengers who need to take the last train during the end-of-operation period can be increased by 10%.Originality/value-Existing research results only consider the passengers who take the last train.Compared with previous research,considering the overall passenger demand during the end-of-operation period can make more passengers arrive at their destination.Appropriately delaying the end-of-operation time can increase the proportion of passengers who can reach the destination in the metro network,but due to the decrease in passenger demand,postponing the end-of-operation time has a bottleneck in increasing the proportion of passengers who can reach the destination.

关 键 词：Urban rail transit Last train of metro Timetable optimization End-of-operation period Passenger demand OD reachability 

分 类 号：U292[交通运输工程—交通运输规划与管理]