AIS
The Automatic Identification System (AIS) is an automated, autonomous tracking system which is extensively used in the maritime world for the exchange of navigational information between AIS-equipped terminals. Thanks to it, static and dynamic vessel information can be electronically exchanged between AIS-receiving stations (onboard, ashore or satellite).
Littledean AIS tracks vessels operating on the Lower Severn between The M48 Severn Road Crossing and the M50 Road Bridge above Tewkesbury.
This information may be viewed on the Marine Traffic App available on IOS or Android.