铁道运输与经济2024，Vol.46Issue(12)：1-9,9.DOI:10.16668/j.cnki.issn.1003-1421.2024.12.01
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
摘要
Abstract
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Key words
Railway Transportation/Express Logistics/Transportation Organization Mode/Cargo Flow Distribution/Mixed-integer Programming分类
交通工程引用本文复制引用
陈星瀚,海雨之霖,郎茂祥,于雪峤,李雨菲..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[J].铁道运输与经济,2024,46(12):1-9,9.基金项目
中国国家铁路集团有限公司科技研究开发计划课题(P2023X014) （P2023X014）
