A set packing inspired method for real-time junction train routing

Lusby, Richard M. and Larsen, Jesper and Ehrgott, Matthias and Ryan, David M. (2013) A set packing inspired method for real-time junction train routing. Computers and Operations Research, 40 (3). pp. 713-724. ISSN 0305-0548

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Abstract

Efficiently coordinating the often large number of interdependent, timetabled train movements on a railway junction, while satisfying a number of operational requirements, is one of the most important problems faced by a railway company. The most critical variant of the problem arises on a daily basis at major railway junctions where disruptions to rail traffic make the planned schedule/routing infeasible and rolling stock planners are forced to re-schedule/re-route trains in order to recover feasibility. The dynamic nature of the problem means that good solutions must be obtained quickly. In this paper we describe a set packing inspired formulation of this problem and develop a branch-and-price based solution approach. A real life test instance arising in Germany and supplied by the major German railway company, Deutsche Bahn, indicates the efficiency of the proposed approach by confirming that practical problems can be solved to within a few percent of optimality in reasonable time.

Item Type:
Journal Article
Journal or Publication Title:
Computers and Operations Research
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1700
Subjects:
ID Code:
64467
Deposited By:
Deposited On:
13 May 2013 10:50
Refereed?:
Yes
Published?:
Published
Last Modified:
08 Jul 2020 03:38