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- Title
Multiperiod Transfer Synchronization for Cross-Platform Transfer in an Urban Rail Transit System.
- Authors
Cao, Nan; Tang, Tao; Gao, Chunhai
- Abstract
Transfer synchronization is an important issue in timetable scheduling for an urban rail transit system, especially a cross-platform transfer. In this paper, we aim to optimize the performance of transfer throughout the daily operation of an urban rail transit system. The daily operation is divided into multiple time periods and each time period has a specific headway to fulfill time varied passenger demand. At the same time, the turn-back process of trains should also be considered for a real operation. Therefore, our work enhances the base of the transfer synchronization model taking into account time-dependent passenger demand and utilization of trains. A mixed integer programming model is developed to obtain an optimal timetable, providing a smooth transfer for cross-transfer platform and minimizing the transfer waiting time for all transfer passengers from different directions with consideration of timetable symmetry. By adjusting the departure time of trains based on a predetermined timetable, this transfer optimization model is solved through a genetic algorithm. The proposed model and algorithm are utilized for a real transfer problem in Beijing and the results demonstrate a significant reduction in transfer waiting time.
- Subjects
BEIJING (China); URBAN transit systems; TRAIN schedules; SYNCHRONIZATION; INTEGER programming; TIME measurements; GENETIC algorithms; TECHNOLOGY transfer
- Publication
Symmetry (20738994), 2020, Vol 12, Issue 10, p1665
- ISSN
2073-8994
- Publication type
Article
- DOI
10.3390/sym12101665