Multi-objective periodic railway timetabling on dense heterogeneous railway corridors

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

This paper proposes a new multi-objective periodic railway timetabling (MOPRT)problem with four objectives to be minimized: train journey time, timetable regularity deviation, timetable vulnerability and the number of overtakings. The aim is to find an efficient, regular and robust timetable that utilizes the infrastructure capacity as good as possible. Based on the Periodic Event Scheduling Problem, we formulate the MOPRT problem as a Mixed Integer Linear Program (MILP). The ε-constraint method is applied to deal with the multi-objective property, and algorithms are designed to efficiently create the Pareto frontier. By solving the problem for different values of ε, the four-dimensional Pareto frontier is explored to uncover the trade-offs among the four objectives. The optimal solution is obtained from the Pareto-optimal set by using standardized Euclidean distance, while capacity utilization is used as an additional indicator to chose between close solutions. Computational experiments are performed on a theoretical instance and a real instance in one direction of a Dutch railway corridor, demonstrating the efficiency of the model and approach.

Details

Original languageEnglish
Pages (from-to)52-75
Number of pages24
JournalTransportation Research Part B: Methodological
Volume125
Publication statusPublished - Jul 2019
Peer-reviewedYes

External IDs

ORCID /0000-0003-4111-2255/work/142246326

Keywords

Keywords

  • Flexible overtaking, Multi-objective optimization, Periodic timetable, Timetable robustness, ε-constraint