The invention discloses an intelligent vehicle intersection left-turn phase signal optimization method. The method comprises the following steps of step 1, acquiring the lane changing microscopic information of a target vehicle; 2, calculating a lane changing urgency coefficient of the target vehicle; 3, calculating a lane changing gap of the target vehicle based on the lane changing urgency coefficient of the target vehicle; 4, acquiring real-time lane data; 5, deciding whether to immediately change the lane and turn left or not according to the vehicle lane changing gap calculated in the step 3; 6, after the target vehicle changes the lane and turns left, the vehicle emptying time before the current straight lane parking line, namely the time when the last vehicle passes through the intersection before the parking line, being calculated; 7, the vehicle emptying time before the opposite straight lane parking line being calculated; 8, calculating the surplus time of the straight-going phase green light; and 9, optimizing a left-turn phase timing scheme according to the straight-going phase green light surplus time calculated in the step 8. According to the method, intersection signal timing efficiency is improved, and a guarantee is provided for road intersection safety and efficiency.

    本发明公开了一种智能车交叉口左转相位信号优化方法,包括以下步骤:步骤1、获取目标车辆的换道微观信息;步骤2、计算目标车辆的换道紧迫系数;步骤3、基于目标车辆换道紧迫系数,计算目标车辆换道间隙;步骤4、获取车道实时数据;步骤5、根据步骤3计算得到的车辆换道间隙决策是否立即换道左转;步骤6、目标车辆换道左转后,计算当前直行车道停车线前车辆清空时间,即停车线前最后一辆车通过交叉口的时间,步骤7、计算对向直行车道停车线前车辆清空时间;步骤8、计算直行相位绿灯盈余时间;步骤9、根据步骤8计算的直行相位绿灯盈余时间优化左转相位配时方案。本发明提升交叉口信号配时效率,为道路交叉口安全和效率提供保障。


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    Title :

    Intelligent vehicle intersection left-turn phase signal optimization method and device


    Additional title:

    一种智能车交叉口左转相位信号优化方法及装置


    Contributors:
    DONG CHANGYIN (author) / WANG HAO (author) / WANG LEIZHEN (author) / LIU XIAOHAN (author) / BA BEI'ER (author) / LU YUNXUE (author) / LI CHANGZE (author) / RUAN TIANCHENG (author) / LIU YONGFEI (author) / CHEN QUAN (author)

    Publication date :

    2021-04-06


    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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