Circle line (London Underground) the stations are shared with one or more of the three other sub-surface lines, namely the District, Hammersmith & City and Metropolitan lines. On the Circle and Hammersmith & City lines combined, over 114 million passenger journeys were recorded in 2011/12. The first section became operational in 1863 when the Metropolitan Railway opened the world's first underground line between Paddington and with wooden carriages and steam locomotives. The same year a select committee report recommended an "inner circle" of lines connecting the London railway termini, and the Metropolitan District Railway (commonly known as the District Railway) was formed to build
West Croydon to Wimbledon Line West Croydon to Wimbledon Line The West Croydon to Wimbledon Line was a railway line in south London. It was built by the Wimbledon and Croydon Railway (W&CR) over part of the trackbed of the Surrey Iron Railway. It opened on 22 October 1855 connecting the South West Main Line of the London and South Western Railway (LSWR) to the London Brighton and South Coast Railway (LB&SCR). National Rail services ceased and the line eventually shut down in 1997 for it to be changed over into a new route for the Tramlink network which eventually rolled into passenger service in