基于多种运输组织模式的铁路快捷物流网络货流分配问题研究  

Railway Express Logistics Network Cargo Flow Distribution Based on Multiple Transportation Organization Modes

作　　者：陈星瀚 海雨之霖 郎茂祥[1] 于雪峤 李雨菲 CHEN Xinghan;HAI Yuzhilin;LANG Maoxiang;YU Xueqiao;LI Yufei(School of Traffic and Transportation,Beijing Jiaotong University,Beijing 100044,China;Transportation&Economics Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Wuhu Train Operation Depot,China Railway Shanghai Group Co.,Ltd.,Wuhu 241000,Anhui,China)

机构地区：[1]北京交通大学交通运输学院,北京100044 [2]中国铁道科学研究院集团有限公司运输及经济研究所,北京100081 [3]中国铁路上海局集团有限公司芜湖车务段,安徽芜湖241000

出　　处：《铁道运输与经济》2024年第12期1-9,共9页Railway Transport and Economy

基　　金：中国国家铁路集团有限公司科技研究开发计划课题(P2023X014)。

摘　　要：针对铁路快捷物流网络的货运能力资源分配与既有运输组织模式间集约利用水平较低的问题,综合考虑快捷物流城市节点间的货运需求,结合特快货物班列、快速货物班列、普速货物班列和旅客列车行李车4种运输组织模式特点,以各OD对间不同运输组织模式对应的列车数量为主要决策变量,以铁路快捷物流运营成本最小为优化目标,构建铁路快捷物流网络货流分配混合整数规划模型,并设计两阶段混合算法进行求解,第一阶段确定各货流OD下每类列车的开行数量,第二阶段进一步确定列车的走行路径。以10个国家级流通节点城市组成的铁路快捷物流网络为案例进行实验,采用Python语言编写遗传算法并调用Gurobi优化软件进行求解。案例结果表明,该方法能够均衡分配铁路快捷物流网络需求,并有效地降低运营成本。In response to the underutilization of freight capacity resources in the railway express logistics network and existing transportation organization modes,this paper took into account the transportation demands of express goods between cities with express nodes.A mixed-integer programming model of railway express logistics network cargo flow distribution was constructed,which incorporated the characteristics of four transportation organization modes:special express freight trains,fast-speed express freight trains,conventional express freight trains,and luggage compartments on passenger trains.The main decision variables are the quantities of different types of freight trains between each origin-destination(OD)pair under the different types of transportation organization modes.The objective was to minimize the operational costs of railway express logistics.A two-stage hybrid algorithm was designed to solve the model,where the first stage determines the number of each type of train operating under each cargo flow OD,and the second stage further determines the train’s routing path.The railway express logistics network composed of 10 national distribution node cities is used as a case for experiments,and the genetic algorithm was coded in Python and using Gurobi optimization software to solve the problem.The results show that the method can equilibrium allocate the demand for the railway express logistics network and effectively reduce the operation cost.

关 键 词：铁路运输 快捷物流 运输组织模式 货流分配 混合整数规划 

分 类 号：U294.1[交通运输工程—交通运输规划与管理]