Intersection arrival rate estimation method based on sampling trajectory data

• Main Authors: TANG KESHUANG, YAO JIARONG, TAN CHAOPENG, SUN JIAN
• Format: Patent
• Language: Chinese; English
• Published: 08.01.2021
• Subjects: PHYSICS; SIGNALLING; TRAFFIC CONTROL SYSTEMS

The invention relates to an intersection arrival rate estimation method based on sampling trajectory data. The method comprises the following steps: 1) obtaining sampling vehicle trajectory data, andpreprocessing the arrival rate between queuing trajectories into an initial arrival rate matrix; 2) according to the initial arrival rate matrix, filling null values in the initial arrival rate matrixthrough a singular value threshold algorithm to obtain a filled arrival rate matrix; and 3) correcting and repairing the filled arrival rate matrix to obtain a final arrival rate matrix, and accumulating and multiplying the arrival rate vector of each period by the length of the unit time interval to obtain the flow of each period. Compared with the prior art, the method has the advantages of being high in universality, good in expansibility, wide in applicability and the like. 本发明涉及一种基于抽样轨迹数据的交叉口到达率估计方法，包括以下步骤：1)获取抽样车辆轨迹数据，并将排队轨迹间的到达率预处理成到初始到达率矩阵；2)根据初始到达率矩阵，通过奇异值阈值算法对初始到达率矩阵中的空值进行填充得到填充后的到达率矩阵；3)对填充后的到达率矩阵进行修正和修补后得到