The invention discloses an expressway entrance ramp cooperative control method and device for an emergency evacuation scene. The method comprises the steps of acquiring the average vehicle speed, flow and traffic flow density in a current sampling period, acquiring a pre-established traffic flow prediction model, and based on the traffic flow prediction model, in combination with a pre-established objective function and constraint conditions of a finite time domain optimization problem, executing an optimization operation of a prediction time domain to obtain an optimal control sequence, wherein the target function is constructed based on queuing waiting time of vehicles on a ramp road section, passing time of vehicles on a main road section and an evacuation risk occurrence probability, and generating a traffic control signal based on the first control quantity in the optimal control sequence so as to perform traffic control on the expressway entrance ramp, meanwhile, entering the next sampling period, and repeating the steps until sampling is completed. The areas with different evacuation risks can be controlled differently, so that the emptying time of the area with larger risk is shortened.

    本发明公开了一种面向应急疏散场景的快速路入口匝道协同控制方法及装置,方法包括:获取当前采样周期下的车辆平均速度、流量和车流密度;获取预先建立的交通流预测模型;基于交通流预测模型,结合预先建立的有限时域优化问题的目标函数和约束条件,执行一个预测时域的优化操作,得到最优控制序列,其中,目标函数基于匝道路段车辆的排队等待时长、主线路段车辆的通行时间以及疏散风险发生概率构建而成;基于最优控制序列中的第一个控制量生成交通控制信号,以对快速路入口匝道进行交通控制,同时进入下一采样周期,重复上述步骤,直至采样完成。本发明可实现疏散风险不同的区域区别控制,使得风险更大区域的清空时间降低。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Expressway entrance ramp cooperative control method and device for emergency evacuation scene


    Weitere Titelangaben:

    面向应急疏散场景的快速路入口匝道协同控制方法及装置


    Beteiligte:
    XIE BINGLEI (Autor:in) / GUAN HUAJUN (Autor:in) / WU DAZHUANG (Autor:in)

    Erscheinungsdatum :

    2021-09-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



    Vehicle-road cooperative control method for expressway entrance ramp

    WU JIAXIN / ZHENG PENGJUN / WEN YIQING et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Expressway main line divided lane control and entrance ramp cooperative control method

    SONG LANG / YU SHANCHUAN / AN WENJUAN et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Expressway entrance ramp control method and system based on heterogeneous traffic scene

    GUO YUQI / HOU DEZAO / LI QIANYAO et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    DQN-based expressway entrance ramp control method

    LI ZHENLONG / WU LIN / QU YANSONG et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Urban expressway and entrance ramp control method

    ZHUO YAJUAN / WANG JUNXIA / HAN ZHIQIANG et al. | Europäisches Patentamt | 2023

    Freier Zugriff