The invention relates to an expressway ramp control and variable speed limit cooperative control method, in particular to an expressway ramp control and variable speed limit cooperative control method considering accident risks. The objective of the invention is to solve the limitation problem that an existing cooperative control method pursues improvement of traffic efficiency unilaterally and neglects accident risks and influences. The method comprises the following steps: 1, acquiring road conditions of a target expressway section; 2, detectors are arranged on all the sections and all the ramps; 3, determining a cooperative control action area; 4, establishing a traffic flow model; 5, calibrating parameters of the traffic flow model; 6, acquiring real-time traffic data in each control period; 7, determining whether cooperative control is started or not; 8, calculating the average collision probability of the cooperative control action area and judging a risk state; 9, obtaining an optimal ramp control regulation rate and an optimal speed limit value; and 10, entering the next control period, and executing a new round of optimization control again from the step 6. The invention belongs to the field of expressway safety control.

    考虑事故风险的快速路匝道控制及可变限速协同控制方法,本发明涉及快速路匝道控制及可变限速协同控制方法。本发明的目的是为了解决现有协同控制方法单方面追求交通效率的提升,忽视事故风险及影响的局限性问题。过程为:1、获取目标快速路路段的道路条件;2、在各节段以及各个匝道上进行检测器布设;3、确定协同控制作用区域;4、建立交通流模型;5、交通流模型参数标定;6、在每个控制周期,获取实时交通数据;7、确定协同控制是否开启;8、计算协同控制作用区域平均碰撞概率并判定风险状态;9、得到最优的匝道控制调节率和限速值;10、进入下一控制周期,重新从6开始执行新一轮优化控制。本发明属于快速路安全控制领域。


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    Titel :

    Expressway ramp control and variable speed limit cooperative control method considering accident risk


    Weitere Titelangaben:

    考虑事故风险的快速路匝道控制及可变限速协同控制方法


    Beteiligte:
    CHEN YONGHENG (Autor:in) / LI HAONAN (Autor:in) / YANG JIAWEI (Autor:in) / SUN JINGYU (Autor:in) / LI SHIHAO (Autor:in) / YANG SUICHENG (Autor:in)

    Erscheinungsdatum :

    2023-08-29


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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