Ushant AIS dataset

This dataset corresponds to 6 months of AIS data of vessels steaming in the area of the Ushant traffic separation scheme (in Brittany, West of France). This is an area with one of the highest traffic density in the world, with a clear separation scheme with two navigation lanes. Different kinds of vessels are present in the area, from cargos and tankers with high velocity and straight routes to sailing boats or fishing vessels with low speed and different sailing directions. As such, the area is highly monitored to avoid collision or grounding, and a better analysis and understanding of the different ship behaviors is of prime importance.<br>The whole trajectory data set consists in 18,603 trajectories, gathering overall more than 7 millions GPS observations. Only trajectories having more than 30 points were kept, time lag between two consecutive observations ranges between 5 seconds and 15 hours, with 95% of time lags below 3 minutes.<br>Authors would like to thank CLS (Collecte Localisation Satellites) and Erwan Guegueniat for providing the raw data that allowed building this dataset.This work has been supported by DGA through the ANR/Astrid SESAME project (ref: ANR-16-ASTR-0026).

本数据集收录了法国西部布列塔尼地区乌尚特（Ushant）船舶交通分隔航道区域内6个月的船舶自动识别系统（AIS, Automatic Identification System）数据。该区域为全球船舶交通密度最高的水域之一，设有清晰的双航道船舶分隔方案。区域内通行的船舶类型多样，涵盖航速较快、航线平直的货轮与油轮，亦包括航速较低、航行方向多变的帆船及渔船。因此，该区域实施高强度监测以规避碰撞与搁浅事故，深入分析并掌握各类船舶的航行行为具有重要意义。
本完整轨迹数据集共包含18603条船舶轨迹，累计收录超过700万条全球定位系统（GPS, Global Positioning System）观测数据。本次筛选仅保留轨迹点数量超过30的轨迹；相邻两次观测的时间间隔介于5秒至15小时之间，其中95%的时间间隔短于3分钟。
本研究感谢CLS（Collecte Localisation Satellites）与埃尔旺·盖格尼亚蒂（Erwan Guegueniat）提供构建本数据集所需的原始数据。本工作得到法国武器装备总署（DGA, Direction Générale de l'Armement）通过ANR/Astrid SESAME项目（项目编号：ANR-16-ASTR-0026）的资助。

搜集汇总

背景与挑战

背景概述

Ushant AIS dataset是一个包含6个月船舶AIS数据的集合，记录了法国乌尚特交通分离区的高密度船舶轨迹，包含18,603条轨迹和700多万个GPS观测点，适用于船舶行为分析和交通管理研究。