个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职:Director of International Office Dean of School of Transportation and Logistics
其他任职:交通运输学院名誉院长
性别:男
毕业院校:日本东京大学
学位:博士
所在单位:交通运输系
学科:交通运输规划与管理. 交通系统工程. 市政工程. 行政管理
联系方式:0411-84708224
电子邮箱:szhao@dlut.edu.cn
Discussion on Influencing Factors of Free-flow Travel Time in Road Traffic Impedance Function
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论文类型:会议论文
发表时间:2013-01-01
收录刊物:CPCI-SSH
卷号:96
页面范围:90-97
关键字:Road traffic impedance; traffic assignment; urban transportation planning; improved BPR function
摘要:Road traffic impedance is an important part of traffic assignment and has a direct impact on the urban transportation planning, especially on the optimization of urban road network. The BPR function has been the classical traffic impedance since 1960s, which pays more attention on the link level. This paper aims to construct an improved BPR function based on the influencing factors of road traffic impedance, such as the density of intersections, the density of bus stops, non-motor vehicles and saturation. These factors can reflect the difference between road and link. The real data collection from different roads in Dalian are used to calculate the road traffic impedance function by the SPSS software. The results show that the density of intersections, the density of bus stops and saturation have positive effects on unit travel time in Dalian roads. These results not only point out the necessary of influencing factors, but also validates the correctness of the proposed impedance function. In summary, this function has a simple structure and high flexibility so that it is expected to be transplanted to other cities. (C) 2013 The Authors. Published by Elsevier Ltd.