城市道路阻抗函数模型研究——以大连市为例  

Study on Urban Road Impedance Function Model—A Case Study of Dalian City

作　　者：何南[1] 赵胜川[1] 

机构地区：[1]大连理工大学交通运输学院,辽宁大连116024

出　　处：《公路交通科技》2014年第2期104-108,共5页Journal of Highway and Transportation Research and Development

基　　金：国家自然科学基金项目(50978046)

摘　　要：为创建符合我国国情的道路阻抗函数,在考虑了城市交通拥堵和道路阻抗函数影响因素(限速、车道数、信号交叉口密度、公交站点密度和饱和度等)的基础上改进了经典U.S.Bureau of Publlic Roads(BPR)函数。结合收集的大连市主要道路的相关数据,运用SPSS统计软件得到了大连市市中心各类型道路(快速路、主干路、次干路和支路)的时间阻抗函数,并将计算结果与经典BPR函数进行了对比分析。为了将道路阻抗函数有效地应用于传统4阶段模型,计算得到了道路日阻抗换算系数,体现出时间阻抗函数与日阻抗函数的关系。In order to build up the best suitable model to Chinese situation, the typical U.S. Bureau of Public Roads （BPR） function is improved based on the congestion and the influencing factors of road impedance such as speed limit, number of lanes, density of intersections, density of bus stops and saturation. On the basis of the actual data collection from different main roads of Dalian City, the time impedance functions of different roads （ expressway, trunk road, secondary trunk road and branch road） in central Dalian City are calculated using SPSS software. Then, the contrastive analysis of calculation results between improved BPR function and traditional BPR function is performed. In order to apply the road impedance function in traditional 4-step model, the daily impedance conversion coefficient is calculated, which can reflect the relationship between time impedance function and daily impedance function.

关 键 词：交通工程 改进BPR函数 回归分析 日换算系数 道路阻抗 交通量分配 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]