考虑交通需求空间不平衡影响的交通指数  

Traffic index considering the impact of spatial imbalance in traffic demand

作　　者：荆毅 林航飞[2] JING Yi;LIN Hangfei(Shanghai Urban Construction Design and Research Institute(Group)Co.,Ltd.,Shanghai 200125,China;School of Transportation Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]上海市城市建设设计研究总院(集团)有限公司,上海200125 [2]同济大学交通运输工程学院,上海201804

出　　处：《交通科学与工程》2024年第2期138-145,共8页Journal of Transport Science and Engineering

摘　　要：为精确反映整个区域或路网的实际交通运行状况,本研究先通过实例分析验证交通需求空间不平衡对区域交通运行的不利影响,再提出“延误等价”原则,以此作为评价区域交通指数准确性的新标准;其次,利用“熵权法”构建区域交通指数模型,该模型包含了反映路段几何特征、路段交通流特征、网络拓扑特征及网络交通需求不平衡特征的因素。以上海市杨浦区为例,经验证,交通指数模型不仅能够准确反映该区域的交通运行状况,还具有较好的适用性,为相关部门的规划建设和管理政策制定提供了借鉴与参考。In order to accurately reflect the actual traffic operation of the whole region or road network,this study firstly verifies the negative impacts of the spatial imbalance of traffic demand on regional traffic operation through example analysis,and then proposes the principle of'delay equivalence'as a new criterion for evaluating the accuracy of the regional traffic index.Secondly,the entropy weight method is used to construct the regional traffic index model,which contains factors reflecting the geometric characteristics of road sections,traffic flow characteristics of road sections,topological characteristics of the network,and the characteristics of the network traffic demand imbalance.Taking Yangpu District of Shanghai as an example,it is proved that the traffic index model can accurately reflect the traffic operation situation of the region and has good applicability.This offers significant reference value for relevant authorities in their infrastructure planning and policy-making efforts.

关 键 词：交通指数 交通需求空间不平衡 熵权法 路网每公里车均延误 延误等价 

分 类 号：U491[交通运输工程—交通运输规划与管理]