AIS Vessel Tracks 2017

Vessels traveling in U.S. coastal and inland waters frequently use Automatic Identification Systems (AIS) for navigation safety. The U.S. Coast Guard collects AIS records using shore-side antennas. These records have been filtered and converted from a series of points to a set of track lines for each vessel. Vessels can have one or more tracks of any length, and can be separated by gaps due to...

航行于美国沿海及内陆水域的船只，通常利用自动识别系统（AIS）以确保航行安全。美国海岸警卫队通过岸基天线收集AIS记录。这些记录经过筛选，并从一系列点转换为每艘船只的轨迹线集合。船只可能拥有一条或多条任意长度的轨迹，且轨迹之间可能因各种原因而出现空隙。