The invention relates to the technical field of urban road traffic, and discloses an urban road signal intersection saturated time headway generalization estimation method and system, and the method comprises the steps: obtaining license plate recognition data, and carrying out the extraction to obtain an intersection signal period; matching the license plate identification data with the floating vehicle data, and extracting saturated time headway samples of vehicles queued at the intersection in all intersection signal periods; screening out saturated time headway influence factors; using the saturated time headway sample as input, and constructing a probability estimation model of the saturated time headway and various saturated time headway influence factors based on an NGBoost model according to the saturated time headway influence factors; and taking each saturated time headway influence factor as the input of the probability estimation model, and outputting a generalization estimation result of the saturated time headway. The method has the beneficial effects that generalization estimation can be carried out on the saturated time headway according to the existing number plate identification data and the floating car data which are easy to obtain.
本发明涉及城市道路交通技术领域,公开了一种城市道路信号交叉口饱和车头时距泛化估计方法及系统,包括获取号牌识别数据,提取得到交叉口信号周期;匹配所述号牌识别数据与浮动车数据,提取所有交叉口信号周期下路口排队车辆的饱和车头时距样本;筛选出饱和车头时距影响因素;用所述饱和车头时距样本作为输入,根据所述饱和车头时距影响因素,基于NGBoost模型构建饱和车头时距与各种饱和车头时距影响因素的概率估计模型;以各饱和车头时距影响因素作为概率估计模型的输入,输出饱和车头时距的泛化估计结果。本发明的有益效果为:能够根据现有且易获取的号牌识别数据和浮动车数据,对饱和车头时距进行泛化估计。
Urban road signal intersection saturated time headway generalization estimation method and system
一种城市道路信号交叉口饱和车头时距泛化估计方法及系统
2024-12-13
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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