The invention relates to a signalized intersection lane queuing length estimation method based on single-section electronic police data. The method comprises the following steps that: (1) the vehicledeparture time headway information of each lane is acquired through electronic police data, wherein the electronic police data is the time stamp information of vehicles passing a stop line, includingdeparture time, direction number, lane number and vehicle model parameters; and (2) according to the timestamp information and a vehicle departure time headway sequence, for a single-lane layout condition and a multi-lane layout condition, a feature function is defined to describe the double characteristics of the close distance and the time headway fluctuation, the change points of the departuretime headway sequence are identified, and the vehicle queuing length and the omission ratio on each lane in the period are estimated. Compared with the prior art, the method considers the error and missing detection phenomena of electronic police equipment, and has the advantages of complete scene coverage, less input data, wide applicability and the like.
本发明涉及一种基于单截面电警数据的信号交叉口车道排队长度估计方法,包括以下步骤:1)通过电警数据获取各车道的车辆离去车头时距信息,所述的电警数据为车辆通过停车线的时间戳信息,包括离开时刻、方向编号、车道编号和车型参数;2)根据时间戳信息及车辆离去车头时距序列,分别针对单车道布设条件和多车道布设条件,通过定义特征函数以描述临近间距与车头时距波动两重特性,识别离去车头时距序列变点,并估计周期内每条车道上的车辆排队长度及漏检率。与现有技术相比,本发明考虑了电警设备所存在的错漏检现象,具有覆盖场景全、输入数据少、适用性广等优点。
Signalized intersection lane queuing length estimation method based on single-section electronic police data
基于单截面电警数据的信号交叉口车道排队长度估计方法
2021-02-26
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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