Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4923642 | Journal of Rail Transport Planning & Management | 2017 | 17 Pages |
â¢We study a rolling-stock planning problem.â¢We define robustness and indicators to measure robustness for the studied context.â¢We model the robust rolling-stock planning problem as an ILP.â¢We test our method on nine real french interregional passenger transport instances.â¢Our method has been industrialized as part of a planning tool at SNCF.
In this paper, we focus on the problem of robust rolling-stock planning for French passenger trains. First, we characterize robustness and define some indicators for the evaluation of rolling-stock rosters. We take a particular interest in homogenizing turning-times in a roster in order to absorb potential delays. Then, we propose a new approach to solve the problem of robust rolling-stock planning. The SNCF reference tool (PRESTO) calculates a solution to the rolling-stock planning problem. It consists of a multi-step approach to cover demand while minimizing operating costs, and to further add maintenance slots to the roster. We propose an integrated ILP model to add robustness to a roster while maintaining low operating costs compared to PRESTO. We have carried out tests on nine real French regional transport instances, and we use a simulation module to evaluate the results. We observe a significant improvement in robustness indicators while maintaining low operating costs and meeting maintenance requirements.