中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2017, Vol. 36 ›› Issue (8): 76-81.DOI: 10.3969/j.issn.1674-0696.2017.08.14

• 交通运输工程 • 上一篇    下一篇

基于路段与节点的城市道路阻抗函数改进

潘义勇,余婷,马健霄   

  1. (南京林业大学 汽车与交通工程学院,江苏 南京 210037)
  • 收稿日期:2016-10-11 修回日期:2016-12-14 出版日期:2017-08-14 发布日期:2020-07-10
  • 作者简介:潘义勇(1980—),男,安徽安庆人,博士,主要从事交通网络方面的研究工作。E-mail:uoupanyg@163.com。
  • 基金资助:
    国家自然科学基金青年基金项目(51508280);南京林业大学高学历人才基金项目(GXL2014031);江苏省高等学校大学生创新创业训练计划项目(201610298037Z)

Improvement of Urban Road Impedance Function Based on Section Impedance and Node Impedance

PAN Yiyong,YU Ting,MA Jianxiao   

  1. (School of Automobile and Traffic Engineering,Nanjing Forestry University,Nanjing 210037,Jiangsu,P.R.China)
  • Received:2016-10-11 Revised:2016-12-14 Online:2017-08-14 Published:2020-07-10

摘要: 道路阻抗是车辆在城市交通网络中运行通达程度的度量值,是路径选择的基础。将城市交通道路阻抗分为路段阻抗与节点阻抗两部分,路段阻抗利用交通量与交通密度间的相互关系优 化BPR函数得到,节点阻抗根据交叉口道路饱和度不同选用不同模型得到。同时,利用道路阻抗影响因子改进该道路阻抗模型,使其更精确。最后利用南京市龙蟠中路道路的实测数据对改进的 城市道路阻抗函数进行了验证。结果表明:改进的城市道路阻抗函数能够较好的反映实际道路阻抗。

关键词: 交通运输工程, 城市交通, 路段阻抗, 节点阻抗, 饱和度

Abstract: Road impedance is used to measure the accessibility of vehicles in urban traffic network,and is the basis of vehicle routing selection.The urban road impedance was divided into two parts:section impedance and node impedance.Section impedance was obtained by the optimization result of BPR function based on the relationship between traffic volume and traffic density;node impedance was obtained by adopting different models according to different road saturation at intersections.At the same time,the road impedance model was optimized by integrating into the influence factors of road impedance to make it more accurate.Finally, the improved road impedance function was verified by using the measured data of Nanjing Longpan road.The result shows that the optimized urban road impedance function can reflect the actual road impedance better.

Key words: traffic and transportation engineering, urban traffic, section impedance, node impedance, saturation

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