Docklands Light Railway
The Docklands Light Railway (DLR) is a light metro or light rail system in London, England. It opened on 31 August 1987 to serve the redeveloped Docklands area of East London. It currently  covers several areas of London. To the north, it reaches Stratford. To the south, Lewisham. To the west, Tower Gateway and Bank in the City of London financial district. To the east, Beckton, London City Airport and Woolwich Arsenal. The DLR is fully computer operated. It is automated and the only job is the emergency stop button.