The invention discloses an expressway traffic flow speed prediction method considering motion state difference between vehicles and a hysteresis effect. The specific prediction method comprises the following six steps: step 1, calculating the disorder of the traffic flow caused by a single vehicle; 2, road unit distribution is carried out on disorder generated by a single vehicle to traffic flow; 3, calculating the total disorder of all road units; 4, constructing a hysteresis effect model; 5, determining the hysteresis phase number and coefficient of the hysteresis effect model; and 6, predicting the traffic flow speed. According to the method, the real-time track information of the vehicle is collected and the traffic flow speed is predicted according to the intelligent degree of the expressway assisted by detection equipment such as an induction coil and a vehicle-mounted GPS, so that traffic control measures can be taken in time, the purpose of preventing and relieving congestion is achieved, the operation efficiency and safety of a traffic system are improved, and the traffic safety is improved. And theoretical basis and model support are provided for expressway traffic flow speed prediction and traffic flow organization and control.
本发明公开了一种考虑车辆间运动状态差异和滞后效应的高速公路交通流速度预测方法。具体预测方法分为六个步骤,即步骤一、计算单一车辆对交通流产生的紊乱;步骤二、将单一车辆对交通流产生的紊乱进行道路单元分配;步骤三、计算所有道路单元的总紊乱;步骤四、构建滞后效应模型;步骤五、确定滞后效应模型的滞后期数与系数;步骤六、预测交通流速度。所述方法根据高速公路智能化程度辅以感应线圈、车载GPS等检测设备采集车辆实时轨迹信息并预测交通流速度,有利于及时采取交通管控措施,达到预防和缓解拥堵的目的,从而提升交通系统的运行效率和安全性,为高速公路交通流速度预测与交通流组织管控提供理论依据和模型支持。
Expressway traffic flow speed prediction method considering motion state difference between vehicles and hysteresis effect
一种考虑车辆间运动状态差异和滞后效应的高速公路交通流速度预测方法
24.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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