The invention discloses a two-phase intersection direct-left conflict influence factor analysis method and system, and the method comprises the steps: collecting the traffic conflict number, traffic flow, intersection signal control, traffic design and other data in a certain time period, carrying out the analysis of the direct-left conflict frequency distribution, and carrying out the analysis of the direct-left conflict influence factors based on the distribution characteristics. A relation model between the straight-left traffic conflict frequency and influence factors such as traffic volume, traffic design and traffic signal control is established, a cumulative residual error method is adopted to analyze the model test precision, and a sensitivity analysis method is adopted to quantitatively analyze the influence degree of each influence factor on the traffic conflict. And the safety performance of the intersection is accurately improved by quantitatively adjusting influence factors. According to the invention, actual intersection parameters are substituted into the model, the number of straight-left conflicts can be obtained, the number of conflicts can be reduced by adjusting influence parameters, and the purpose of improving traffic safety is achieved.

    本发明公开了一种两相位交叉口直左冲突影响因素分析方法及系统,包括采集一定时间段内交通冲突数、交通流量、交叉口信号控制及交通设计等数据,对直左冲突频次分布进行分析,基于分布特征,建立直左交通冲突频次与交通量、交通设计及交通信号控制等影响因素之间的关系模型,采用累积残差法分析模型检验精度,采用灵敏度分析方法定量分析各影响因素对交通冲突的影响程度,通过定量调整影响因素精准提升交叉口安全性能。通过本发明,将实际交叉口参数带入模型,可获得直左冲突数,通过调整影响参数,可降低冲突发生数量,达到提升交通安全的目标。


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    Title :

    Two-phase intersection straight-left conflict influence factor analysis method and system


    Additional title:

    两相位交叉口直左冲突影响因素分析方法及系统


    Contributors:
    LIU QINGCHAO (author) / ZHANG XIN (author) / KONG DEWEN (author) / ZHANG LAIYU (author) / WANG RUIHAI (author) / CHEN SIQI (author)

    Publication date :

    2025-02-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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