London OvergroundLondon Overground (also known simply as the Overground) is a suburban rail network serving London and its environs. Established in 2007 to take over Silverlink Metro routes, it now serves a large part of Greater London as well as the home county of Hertfordshire, with 113 stations on nine different routes. The Overground forms part of the United Kingdom's National Rail network but it is under the concession control and branding of Transport for London (TfL). Operation has been contracted to Arriva Rail London since 2016.
Barking stationBarking is an interchange station serving the town of Barking, east London. It is served by London Underground, London Overground and National Rail main line services. It is located on Station Parade, in the town centre. On the Underground it is a stop on the District line and is also the eastern terminus of the Hammersmith & City line; on the National Rail network it is served by c2c services operating to and from ; and on the Overground it was formerly the eastern terminus of the Gospel Oak to Barking line, which has now been extended to .
District lineThe District line is a London Underground line running from in the east and Edgware Road in the west to in west London, where it splits into multiple branches. One branch runs to in south-west London and a short branch, with a limited service, only runs for one stop to . The main route continues west from Earl's Court to after which it divides again into two western branches, to Richmond and . Printed in green on the Tube map, the line serves 60 stations (more than any other Underground line) over .
London UndergroundThe London Underground (also known simply as the Underground or by its nickname the Tube) is a rapid transit system serving Greater London and some parts of the adjacent home counties of Buckinghamshire, Essex and Hertfordshire in England. The Underground has its origins in the Metropolitan Railway, opening on 10 January 1863 as the world's first underground passenger railway. It is now part of the Circle, District, Hammersmith & City and Metropolitan lines.
