Print Email Facebook Twitter Optimization models for high-speed train unit routing problems Title Optimization models for high-speed train unit routing problems Author Wang, Ying (Beijing Jiaotong University) Gao, Yuan (Beijing Jiaotong University) Yu, Xiaoyuan (Beijing Jiaotong University) Hansen, I.A. (TU Delft Transport and Planning) Miao, Jianrui (Beijing Jiaotong University) Date 2019 Abstract Train unit routing problem determines the number of train units needed to carry out involved trips, which is a significant part of railway operation cost. In this paper, we focus on high-speed train unit routing problems, in which maintenance resource constraints both on time and distance are taken into account. Based on a connection network, this paper first proposes a general train unit routing model. Then, the general model is specialized to meet the circulation and maintenance conditions of high-speed train units in China, which is based on a special connection network with a two-day time horizon. A strategy is proposed to reduce the scale of the connection network, which improves the model's solvability. Furthermore, an extension on multi-depot train unit routing problem is discussed. Finally, numerical experiments based on the real data of Chinese high-speed railway are carried out to verify the effectiveness and efficiency of the proposed mode and method. Subject High-speed railwayInteger programmingMaintenanceTrain unit routing problem To reference this document use: http://resolver.tudelft.nl/uuid:2e2cd06e-41e7-4e5e-bc2a-81b8c2389b5c DOI https://doi.org/10.1016/j.cie.2018.02.039 Embargo date 2021-06-30 ISSN 0360-8352 Source Computers & Industrial Engineering, 127, 1273-1281 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2019 Ying Wang, Yuan Gao, Xiaoyuan Yu, I.A. Hansen, Jianrui Miao Files PDF Optimization_models_for_h ... oblems.pdf 480.06 KB Close viewer /islandora/object/uuid:2e2cd06e-41e7-4e5e-bc2a-81b8c2389b5c/datastream/OBJ/view