物联网学报 ›› 2017, Vol. 1 ›› Issue (3): 40-46.doi: 10.11959/j.issn.2096-3750.2017.00030

• 理论与技术 • 上一篇    下一篇

过饱和状态下道路单交叉口的延误模型建立

陈复扬,闫啸岳,姜斌   

  1. 南京航空航天大学自动化学院,江苏 南京211106
  • 修回日期:2017-08-30 出版日期:2017-12-01 发布日期:2018-03-10
  • 作者简介:陈复扬(1967-),男,南京航空航天大学教授,主要研究方向为物联网控制及自愈合控制。|闫啸岳(1995-),男,南京航空航天大学硕士生,主要研究方向为控制工程。|姜斌(1966-),男,南京航空航天大学教授,主要研究方向为故障诊断与容错控制。
  • 基金资助:
    国家自然科学面上基金资助项目(61473146)

Research on the delay model of single intersection in the oversaturated state

Fu-yang CHEN,Xiao-yue YAN,Bin JIANG   

  1. College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China
  • Revised:2017-08-30 Online:2017-12-01 Published:2018-03-10
  • Supported by:
    The National Natural Science Foundation of China(61473146)

摘要:

针对排队车辆在一个绿灯相位内不能完全消散的情况,建立了过饱和状态下道路单交叉口的延误模型。随着物联网技术及数据采集与处理精度的提高,可主要分析测量断面车辆到达率和离开率的相关规律,经机理分析,分别对单相位路口、两相位单交叉口和四相位单交叉口进行建模。采用所建立的过饱和交叉口延误模型,可寻求最小延误重新分配各路口的绿灯时间,以缓解城市道路过饱和的状况。仿真结果验证了所建模型的准确性。

关键词: 城市道路交叉口, 过饱和状态, 交通延误, 建模

Abstract:

The oversaturated state of the intersection is mainly manifested as the queuing vehicles are not completely dissipated at the end of a green light phase.In order to cope with the traffic congestion,the mathematical model of an intersection is built.The relative regularity of arrival rate and departure rate of vehicles are analyzed.Through the analysis of the mechanism,the modeling of single-phase intersection,two-phase single intersection and four-phase single intersection are studied.The established oversaturated intersection delay model can be used to assign the green time of each intersection by calculating the minimum delay to alleviate the oversaturation condition of the city road.Numerical simulation results verify the validity and availability of the modeling method.

Key words: urban traffic intersection, oversaturation, traffic delay, modeling

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