基于起点-终点数据的成山角船舶交通流特征分析

Characterization of Vessel Traffic Flow in Chengshanjiao Based on Origin-destination Data

文中提出了一种基于起点-终点(origin-destination,OD)数据的船舶AIS(automatic identification system)轨迹聚类模型.该模型通过对船舶AIS轨迹的OD数据聚类,得到起点标签和终点标签的OD类别组合,从而将行为相似的船舶轨迹划分到同一个簇中,实现船舶AIS轨迹的有效聚类,并识别噪声轨迹.在此基础上,分析了成山角定线制水域船舶航行偏好、OD位置特点和船舶的群体性活动规律等交通流特征.

A ship AIS(Automatic Identification System)trajectory clustering model based on origin-destination,OD)data was proposed.By clustering the OD data of the ship’s AIS trajectory,the model obtained the OD category combination of the start label and the end label.Thus,the ship trajectories with similar behaviors were divided into the same cluster,the effective clustering of ship AIS trajectories was realized,and the noise trajectories were identified.On this basis,the characteristics of traffic flow such as ship navigation preference,OD position characteristics and ship group activity law in Chengshanjiao routing system waters were analyzed.