计算机工程 ›› 2012, Vol. 38 ›› Issue (12): 279-282.doi: 10.3969/j.issn.1000-3428.2012.12.082

• 开发研究与设计技术 • 上一篇    下一篇

基于信号控制的城市路网旅行时间计算模型

诸彤宇,李聪聪,姜新新,马法进   

  1. (北京航空航天大学软件开发环境国家重点实验室,北京 100191)
  • 收稿日期:2011-06-13 出版日期:2012-06-20 发布日期:2012-06-20
  • 作者简介:诸彤宇(1969-),男,副教授、博士,主研方向:智能交通;李聪聪、姜新新、马法进、硕士研究生
  • 基金项目:
    科技推动首都社会经济发展主题计划基金资助项目(20 10ZX01045-001-009)

Urban Road Network Travel Time Calculation Model Based on Signal Control

ZHU Tong-yu, LI Cong-cong, JIANG Xin-xin, MA Fa-jin   

  1. (State Key Laboratory of Software Development Environment, Beihang University, Beijing 100191, China)
  • Received:2011-06-13 Online:2012-06-20 Published:2012-06-20

摘要: 交通控制信号对交通流的影响是干扰实时交通数据计算准确性的重要因素。为此,提出一种基于信号控制的城市路网旅行时间计算模型。将城市道路的旅行时间分为2个部分,即路链有效旅行时间和路口延误时间,设计改进的信号控制延误模型用于计算路口延误时长,并给出路链合并算法。实验结果表明,该模型起点到终点的旅行时间误差率能降低5%~15%。

关键词: 旅行时间, 路口延误, 路链合并, 城市路网, 信号控制

Abstract: The signal control is an important factor for real-time traffic accuracy, which influences on traffic flow obviously. In this paper, urban road network travel time calculation model based on signal control is proposed, which gets no interference real time traffic data by separating the influence from signal control. The travel time is divided into two components: Link Valid Travel Time(LVTT) and Intersection Delay Time(IDT); and an optimized signal control delay model is proposed to calculate the IDT accurately. Besides, a link merger algorithm is also developed. Experimental results show that the travel time accuracy error of Origin Destination(OD) can be reduced by 5%~15%.

Key words: travel time, intersection delay, link merger, urban road network, signal control

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