轴辐式多式联运枢纽网络优化研究

发布时间：2018-04-03 00:12

本文选题：轴辐式网络优化　切入点：多式联运　出处：《北京交通大学》2015年硕士论文

【摘要】：随着经济全球化的不断发展,轴辐式网络逐渐成为整合运输资源、降低运输成本、提高运营效率的有效网络结构。而多式联运以其高效、安全、低成本融合各种运输方式的经济优势,在综合运输体系中发挥的作用越来越大,成为国内外运输服务业竞相发展的运输组织形式。多式联运枢纽作为运输过程中多种运输方式之间的有效衔接点和关键基础设施,它的优化布局的好坏影响着整个网络的服务质量,而多式联运枢纽间的连接路径作为轴辐式网络的重要运输通道,对整个轴辐式多式联运网络的运营产生重大影响。轴辐式多式联运模式既能够聚合运输线路上的小规模货物流,提高运输资源的利用率,又可以降低货物的运输成本,获得更大的经济效益,未来应用前景广阔。因此,对轴辐式多式联运枢纽网络优化的研究就显得尤为重要。本文分析了国内外对轴辐式多式联运枢纽网络研究现状,介绍了轴辐式网络和多式联运的相关基础理论,并分析了多式联运在轴辐式网络中的应用,总结了轴辐式网络优化问题的类型和基本数学模型。本文是在传统运输网络节点布局中的多分配P-Hub中位问题的模型及方法的基础上进行网络的优化,综合考虑枢纽建设的固定成本,运输成本、枢纽中转成本、规模经济效应、服务时间限制、枢纽容量限制等因素,以网络总费用最小为目标函数构建数学模型框架；然后根据问题的实际特点,使用禁忌搜索算法对该模型进行求解,首先利用5节点构成的小规模网络数据对模型和算法进行检验,使用MATLAB软件输出计算结果,对结果进行分析,以验证本文模型算法的合理性和有效性。最后以20节点构成的较大规模的网络为例,对本文提出的轴辐式多式联运枢纽网络优化模型算法进行更加详细的分析。通过对枢纽容量大小、成本折扣系数、服务时间限制等因子设置不同的取值,分析其对网络布局结构和网络总成本的影响,求得的结果可以为轴辐式多式联运枢纽网络的构建及运营提供理论参考依据。
[Abstract]:With the development of economic globalization, axis-spoke network has gradually become an effective network structure to integrate transportation resources, reduce transportation costs and improve operational efficiency.Because of its economic advantages of high efficiency, safety and low cost, multimodal transport plays a more and more important role in the integrated transportation system and becomes a form of transportation organization for the development of domestic and foreign transport services.As an effective connection point and key infrastructure between multiple modes of transport, multimodal transport hub affects the quality of service of the whole network.As an important transportation channel of the axis-spoke network, the connection path between the intermodal hub and the hub has a significant impact on the operation of the whole axis-spoke multimodal transport network.The axis-spoke multimodal transport mode can not only aggregate the small-scale cargo flow on the transportation line, improve the utilization ratio of transportation resources, but also reduce the transportation cost of goods and obtain more economic benefits. The future application prospect is broad.Therefore, it is particularly important to study the optimization of hub network of axis-spoke multimodal transport.This paper analyzes the current situation of research on axle-spoke multimodal transport hub network at home and abroad, introduces the basic theory of axis-spoke network and multimodal transport, and analyzes the application of multimodal transport in axis-spoke network.The types and basic mathematical models of axis-radial network optimization problems are summarized.This paper is based on the model and method of multi-assignment P-Hub median problem in the layout of traditional transportation network nodes, and considers the fixed cost, transportation cost, transit cost and economies of scale effect of hub construction.Taking the minimum network total cost as the objective function to construct the mathematical model frame, the paper uses Tabu search algorithm to solve the model according to the actual characteristics of the problem.First, the model and algorithm are tested by using the data of a small scale network composed of five nodes, and the calculation results are outputted by MATLAB software, and the results are analyzed to verify the rationality and validity of the model algorithm in this paper.Finally, taking the large scale network composed of 20 nodes as an example, the algorithm of the axle-spoke multimodal transport hub network optimization model proposed in this paper is analyzed in more detail.By setting different values to the capacity of the hub, cost discount coefficient, service time limit and so on, this paper analyzes its influence on the network layout structure and the total network cost.The results can provide theoretical reference for the construction and operation of axis-spoke multimodal transport hub network.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U115

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