本发明公开了交通控制技术领域,特别涉及一种适应新型混合交通流场景的匝道协调控制方法及设备。包括:S1.获取交通流宏观基本图;S2.根据CAV渗透率对所述宏观基本图进行分段拟合,获取MFD分段拟合函数;S3.根据路段平均密度识别拥堵路段,并基于所述拥堵路段中车辆的平均行程长度,确定匝道的控制范围;S4.根据所述MFD分段拟合函数,构建所述交通流的离散化过程模型;S5.基于所述离散化过程模型,采用模型预测控制方法,建立分层优化控制模型,输出匝道的协调控制结果。本申请还包括实现本方法的设备,将多控制量的协调优化问题转化为单控制量的优化与分配,降低了控制模型的计算复杂度,从而优化交通信号控制和匝道流量分配,达到缓解交通拥堵的效果。

    The invention discloses the technical field of traffic control, and particularly relates to a ramp coordination control method and device suitable for a novel mixed traffic flow scene. Comprising the following steps: S1, acquiring a traffic flow macroscopic fundamental diagram; s2, performing segmentation fitting on the macroscopic fundamental diagram according to CAV permeability to obtain an MFD segmentation fitting function; s3, recognizing a congested road section according to the road section average density, and determining a ramp control range based on the average travel length of vehicles in the congested road section; s4, according to the MFD piecewise fitting function, constructing a discretization process model of the traffic flow; and S5, based on the discretization process model, establishing a layered optimization control model by adopting a model prediction control method, and outputting a coordination control result of the ramp. The invention further comprises a device for realizing the method, a multi-control-quantity coordinated optimization problem is converted into single-control-quantity optimization and distribution, and the calculation complexity of a control model is reduced, so that traffic signal control and ramp flow distribution are optimized, and the effect of relieving traffic jam is achieved.


    Access

    Download


    Export, share and cite



    Title :

    一种适应混合交通流场景的匝道协调控制方法及设备


    Publication date :

    2025-07-29


    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 / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung