Tramlink (originally and sometimes still called Croydon Tramlink) is a tramway system in south London in the United Kingdom which began operation in May 2000. The service is operated by London Tramlink, an arm of Transport for London (TfL).
Tramlink serves seven National Rail stations and has one interchange with the London Underground, at Wimbledon station for the District Line, and one with London Overground, at West Croydon for the East London Line; one of the factors leading to its creation was that the area around Croydon has no Underground service.
Tramlink runs on a mixture of street track shared with other traffic, dedicated track in public roads, and off-street track consisting of new rights-of-way, former railway lines, and one section of alignment, though not track, shared with a third rail electrified Network Rail line.
Read more about Tramlink: Rolling Stock, Accidents and Incidents, Onboard Announcements