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An Operation Optimization for Express Freight Trains Based on Shipper Demands

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  • Yuzhao Zhang
  • Yusong Yan

Abstract

The supreme goal of railway express freight transportation is to meet the various demands of shippers. This paper considers the optimization problem of the operation plan for express freight trains based on shipper demands, including transport volume, service frequency, and transit time. An integer programming model that takes maximum shipper demands as optimized objective is proposed to realize the assignment of trains to candidate paths. In this model, the number of marshalling cars for express freight train is set as a decision variable rather than a constant to better satisfy the demand characteristics. A heuristic solution algorithm based on genetic algorithm is then designed. Finally, a numerical case is applied to verify the feasibility of the model and the algorithm.

Suggested Citation

  • Yuzhao Zhang & Yusong Yan, 2014. "An Operation Optimization for Express Freight Trains Based on Shipper Demands," Discrete Dynamics in Nature and Society, Hindawi, vol. 2014, pages 1-8, January.
    • Handle: RePEc:hin:jnddns:232890
    DOI: 10.1155/2014/232890
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