交通运输系统工程与信息 ›› 2016, Vol. 16 ›› Issue (6): 100-107.

• 系统工程理论与方法 • 上一篇    下一篇

基于单元化物流的铁路快运组织优化

周康a,何世伟*a,宋瑞a, b,黎浩东a   

  1. 北京交通大学a. 交通运输学院;b. 城市交通复杂系统理论与技术教育部重点实验室,北京100044
  • 收稿日期:2016-04-22 修回日期:2016-06-23 出版日期:2016-12-25 发布日期:2016-12-26
  • 作者简介:周康(1983-),男,河北景县人,博士生.
  • 基金资助:

    国家自然科学基金/ National Natural Science Foundation of China(61374202);中央高校基本科研业务费专项资金/ Fundamental Research Funds for the Central Universities(2014YJS071)

Optimization of Railway Express Organization Based on Unitized Logistics

ZHOU Kanga,HE Shi-weia,SONG Ruia, b,LI Hao-donga   

  1. a. School of Traffic and Transportation; b. MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, China
  • Received:2016-04-22 Revised:2016-06-23 Online:2016-12-25 Published:2016-12-26

摘要:

铁路快捷货物运输是适应社会物流发展的必然趋势,合理的快运组织能够提 高运输服务质量及市场竞争力.利用离散时空网络方法构建铁路货物运输初始网络;在传 统货物运输基础上考虑单元化运输对集装器具的需求,以及集装器具使用后所产生的影 响;由于货物在运输过程中存在不确定的货损货差,应用概率论及随机约束描述不同运 输服务下的货物丢失、损坏情况及造成的损失;在满足货运需求的前提下考虑包括运输 成本、装卸成本等总成本最低为目标构建优化模型,同时考虑货运时效性约束对初始网 络进行优化研究.通过将随机约束确定化处理,利用Cplex 优化软件对模型求解;通过算 例验证该模型的可靠性及合理性.

关键词: 铁路运输, 组织优化, 时空网络, 铁路快运, 单元化物流, 随机约束, 正态分布

Abstract:

Railway express is the inevitable trend to adapt to the social logistics development, reasonable express organization can enhance the transport service quality and market competitiveness. Initial network of railway freight transportation is constructed by using discrete time network method. Based on the traditional transportation, the demand for containerization appliances and the effects of using the containerization appliances are considered. Because of the uncertainty of lose and damage of goods during transportation, probability theory and stochastic constraints are applied to describe the damage and lose of goods in different transport service modes. Based on the meeting of freight demand, the minimum total costs of transportation including transport cost, handling cost and other costs are taken as the object to build the optimization model, and the constraint of shipping time is considered to optimize the initial network. Through the treatment of determination for the stochastic constraints, Cplex optimization software is used to solve the model. The reliability and rationality of the method are verified by a case.

Key words: railway transportation, organization optimization, time-space network, railway express, unitized logistics, constrained random, normal distribution

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