Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
286431 | Journal of Rail Transport Planning & Management | 2013 | 9 Pages |
•A vehicle routing model is proposed to schedule periodic rail inspections.•A customized heuristic algorithm is developed to effectively solve the problem.•The proposed algorithm significantly outperforms state-of-art solution approaches.•The modeling framework has been adopted in practice by a Class I railroad.
Railroads use a set of rail inspection teams to periodically examine the status of rail tracks across the railroad network. The rail inspection scheduling problem (RISP) is a large-scale routing and scheduling problem where thousands of inspection tasks are to be scheduled subject to many complex constraints. This paper proposes a vehicle routing problem formulation for RISP and develops a customized heuristic algorithm to effectively solve the problem. Real-world case studies show that the proposed approach significantly outperforms commercial solvers and the state-of-art manual solution approach. The proposed approach has been adopted by a Class I railroad to enhance safety and operational efficiency.