An Improved Algorithm for the Periodic Timetabling Problem
- We consider the computation of periodic timetables, which is a key task in the service design process of public transportation companies. We propose a new approach for solving the periodic timetable optimisation problem. It consists of a (partially) heuristic network aggregation to reduce the problem size and make it accessible to standard mixed-integer programming (MIP) solvers. We alternate the invocation of a MIP solver with the well-known problem specific modulo network simplex heuristic (ModSim). This iterative approach helps the ModSim-method to overcome local minima efficiently, and provides the MIP solver with better initial solutions. Our computational experiments are based on the 16 railway instances of the PESPlib, which is the only currently available collection of periodic event scheduling problem instances. For each of these instances, we are able to reduce the objective values of previously best known solutions by at least 10.0%, and up to 22.8% with our iterative combined method.
| URN: | urn:nbn:de:kobv:526-opus4-9899 |
|---|---|
| Publisher DOI: | https://doi.org/10.4230/OASIcs.ATMOS.2017.12 |
| Author: | Goerigk Marc, Christian LiebchenORCiDGND |
| ISBN: | 978-3-95977-042-2 |
| Parent Title (English): | 17th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2017) |
| Document Type: | Part of a Book |
| Language: | English |
| Year of Publication: | 2017 |
| First Page: | 12:1 |
| Last Page: | 12:14 |
| Publisher: | Schloss Dagstuhl / Leibniz-Zentrum für Informatik |
| Place of publication: | Dagstuhl |
| Faculties an central facilities: | Fachbereich Ingenieur- und Naturwissenschaften |
| Editor: | Gianlorenzo D'Angelo, Twan Dollevoet |
| Publishing Institution: | Technische Hochschule Wildau |
| Tag: | modulo network simplex; periodic event scheduling problem; periodic timetabling; railway optimisation |
| Source: | Goerigk, M., & Liebchen, C. (2017). An Improved Algorithm for the Periodic Timetabling Problem. In Gianlorenzo D’Angelo, & Twan Dollevoet (Eds.), 17th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2017). (pp. 12:1-12:14). Dagstuhl, Germany: Schloss Dagstuhl / Leibniz-Zentrum für Informatik. |
| Dewey Decimal Classification: | 0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 005 Computerprogrammierung, Programme, Daten |
| 3 Sozialwissenschaften / 38 Handel, Kommunikation, Verkehr / 385 Schienenverkehr | |
| Licence (German): | Creative Commons - CC BY 3.0 - Namensnennung 3.0 Unported |
| Release Date: | 2017/09/14 |



