The invention relates to an intersection queuing length estimation method, which comprises the following steps of: collecting trajectory data of a vehicle passing through an intersection, marking states of trajectory points in the trajectory data, and dividing each trajectory point into a corresponding signal period according to a set signal period; based on the marked trajectory data, identifying a queuing dissipation critical point and a queuing formation critical point of each vehicle in each signal period; fitting according to the queuing dissipation critical point to obtain a queuing dissipation curve; fitting according to the queuing formation critical point to obtain a queuing formation curve; and calculating the vehicle queuing length according to the queuing dissipation curve and the queuing formation curve. The invention can realize queuing length estimation based on trajectory data, and is low in calculation cost and high in practicability.
本发明涉及一种交叉口排队长度估计方法,包括以下步骤:收集车辆通过交叉口的轨迹数据,对所述轨迹数据中轨迹点的状态进行标注,并按设定信号周期将各轨迹点划分至相应信号周期;基于标注后的轨迹数据,识别每一信号周期内各车辆的排队消散临界点和排队形成临界点;根据所述排队消散临界点拟合得到排队消散曲线;根据所述排队形成临界点拟合得到排队形成曲线;根据所述排队消散曲线以及所述排队形成曲线计算车辆排队长度。本发明能够实现基于轨迹数据的排队长度估计,计算成本小,实用性高。
Intersection queuing length estimation method and device
一种交叉口排队长度估计方法及装置
2021-06-25
Patent
Elektronische Ressource
Chinesisch
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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