基于集散效用和运输一体化枢纽布局优化模型

分析了综合运输枢纽规划与综合运网规划相互反馈的互动机制,提出以城市集散节点为主导的综合运输枢纽布局优化思路,并以综合运输集散、衔接综合广义费用最小为目标,建立了枢纽布局选址优化的混合整数规划模型;通过模型求解,从大型综合枢纽建设与综合运输体系构建的关系出发,引入了提高枢纽衔接效率和实现运输一体化的分析思路。分析认为：提出的综合运输枢纽布局优化模型构建、求解简单清晰,容易得到全局最优解,且能够反映枢纽和对外运网适应性密切的互动机制。

Layout optimization model of hub system based on distribution utility and transportation integration

This paper analyzes the recuperative interaction mechanism between comprehensive transportation hub planning and comprehensive transportation networks planning and proposes the layout optimization concept led by distribution nodes city.The layout optimization model of comprehensive transportation hubs is constructed by taking comprehensive distribution and connecting time as object,which is mixed integer optimization model.From the aspect of relation between comprehensive transportation hubs and comprehensive transportation system,the paper introduces the analysis concept of promoting the connecting efficiency and realizing transportation integration.The case proves that the model can be easily constructed and clearly solved,and the global optimal solution of the model can be easily obtained.What’s more,the model can reflect the interaction mechanism between comprehensive transportation hub and external road networks.