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Optimizing the freight train connection service network of a large-scale rail system

机译：优化大型铁路系统的货运连接服务网络

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摘要

This paper presents a formulation and solution for the train connection services (TCSs) problem in a large-scale rail network in order to determine the optimal freight train services, the frequency of services, and the distribution of classification workload among yards. TCS problem is modeled as a bi-level programming problem. The upper-level is intended to find an optimal train connection service, and the lower-level is used for assigning each shipment to a sequence of train services and determining the frequency of services. Our model solves the TCS problem of the China railway system, which is one of the largest railway systems in the world. The system consists of 5544 stations, and over 520,000 shipments using this system for a year period. A subnetwork is defined with 127 yards having some minimum level of reclassification resources and 14,440 demands obtained by aggregating 520,000 shipments to the subnetwork. We apply a simulated annealing algorithm to the data for optimal computation after pre-processing and get an excellent result. Comparing our optimal solution with the existing plan result, there are improvements of about 20.8% in the total cost.
机译：本文针对大型铁路网络中的列车连接服务（TCS）问题，提出了一个公式和解决方案，以便确定最佳的货运列车服务，服务频率以及码间分类工作量的分布。 TCS问题被建模为双层编程问题。上层旨在找到最佳的火车接驳服务，下层用于将每批货物分配给一系列火车服务并确定服务频率。我们的模型解决了中国铁路系统（世界上最大的铁路系统之一）的TCS问题。该系统由5544个工作站组成，一年使用该系统的发货量超过520,000。子网定义为127码，具有一些最低级别的重新分类资源，并且通过汇总520,000个发往该子网的货物获得了14,440个需求。我们将模拟退火算法应用于数据，以便在预处理后进行最佳计算，并获得出色的结果。将我们的最佳解决方案与现有计划结果进行比较，总成本可节省约20.8％。

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  • 来源
    《Transportation Research Part B: Methodological》 |2012年第5期|p.649-667|共19页
  • 作者

    Bo-Liang Lin; Zhi-Mei Wang; Li-Jun Ji; Ya-Ming Tian; Guo-Qing Zhou;

  • 作者单位

    School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China,MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing jiaotong University, Beijing 100044, China;

    School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China,State Key Laboratory of Rail Traffic Control and Safely, Beijing Jiaotong University, Beijing 100044, China;

    School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China;

    School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China;

    Department of Civil and Environmental Engineering, Old Dominion University, Norfolk, VA 23529, USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    train connection service; simulated annealing; bilevel programming model; rail network;

    机译：火车接驳服务;模拟退火双层编程模型;铁路网;

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