The invention provides an intersection saturation flow rate calculation method based on checkpoint data, which comprises the following steps: carrying out time headway calculation on acquired intersection checkpoint data, and carrying out period division on an obtained time headway sequence; preprocessing the time headway data of the single cycle; calculating the saturated time headway of the peak period according to a normal model test algorithm to obtain the saturation flow rate of the intersection. According to the method, the calculation accuracy is improved, and the requirement of dynamically extracting the saturation flow rate is met.
本发明提供一种基于卡口数据的交叉口饱和流率计算方法,其中,包括:对采集的交叉口卡口数据进行车头时距计算,并对得到的车头时距序列进行周期划分;对所述单周期的车头时距数据进行预处理;根据正态模型检验算法计算高峰时段的饱和车头时距;进而得到交叉口的饱和流率。本发明提高了计算准确性,且满足动态提取饱和流率的需求。
Intersection saturation flow rate calculation method based on checkpoint data
一种基于卡口数据的交叉口饱和流率计算方法
2021-07-16
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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