基于城市复合网络的出行交通分配组合模型研究  

Research on the Combined Model of Travel Traffic Assignment Based on Urban Composite Network

作　　者：陈玲娟[1] 胡轩 郑小毅 汤文[1] 王竹 徐琳 CHEN Lingjuan;HU Xuan;ZHENG Xiaoyi;TANG Wen;WANG Zhu;XU Lin(School of Automotive and Transportation Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;China Power Construction Group Guiyang Survey,Design and Research Institute Co.,Ltd.,Guiyang 550081,China)

机构地区：[1]武汉科技大学汽车与交通工程学院,湖北武汉430081 [2]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081

出　　处：《物流科技》2024年第19期80-85,共6页Logistics Sci Tech

基　　金：国家社会科学基金项目“智慧出行的方案定制及服务提升策略研究”(20CGL018)。

摘　　要：文章提出了一种交通分配组合模型,解决传统四阶段方法缺乏联系导致误差逐渐放大的问题。文章基于构建的城市复合网络,将交通方式划分和交通分配整合在一起,综合考虑交通方式选择和交通分配的影响。通过基于A*算法的备选路径集查找方法,求解给定OD上的k短路径情况。采用广义费用公式对多方式出行效用进行计算,将费用、时间和换乘行为进行统一量化。最后,建立交通方式划分与交通分配组合模型,采用多层次迭代平衡求解,优化交通方式分担率。算例分析验证了组合模型在流量分配方面的优势,具有更好的路段流量均衡性和较低的阻抗时间。该模型可为城市交通规划和出行预测提供参考。This article proposes a traffic allocation combination model to solve the problem of errors gradually amplifying due to the lack of connection in traditional four stage methods.This model integrates the division of transportation modes and transportation allocation,constructs a composite network,and comprehensively considers the impact of transportation mode selection and transportation allocation.Solve the k-short path situation on a given OD using an alternative path set search method based on the A*algorithm.Using the generalized cost formula to calculate the utility of multimodal travel,the cost,time,and transfer behavior are uniformly quantified.Finally,establish a combination model of traffic mode division and traffic allocation,and use multi-level iterative equilibrium solution to optimize the sharing rate of traffic modes.The example analysis verifies the advantages of the combined model in traffic allocation,with better road flow balance and lower impedance time.This model can provide reference for urban transportation planning and travel prediction.

关 键 词：复合网络 交通方式划分 交通分配组合模型 A~*算法 

分 类 号：F502[经济管理—产业经济]