Circle line (London Underground) with the other London Underground sub-surface lines: the Hammersmith & City line from Hammersmith to just before Aldgate; the Metropolitan line from Baker Street to Aldgate; and the District line from Tower Hill station to Edgware Road station. The line is electrified with a four-rail DC system: a central conductor rail is energised at and a rail outside the running rail at , giving a potential difference of . The running rails are not electrified. Much of the double track railway from the Hammersmith terminus to Westbourne Park station is on a high brick viaduct. East of Westbourne Park the
Stations around Shepherd's Bush City Underground station (opened in 1947 to replace the former Wood Lane station) and the 2008 Wood Lane Hammersmith & City line station. Stations around Shepherd's Bush Shepherd's Bush is an area of west London, England, which has been served by a number of London Underground and commuter rail stations over the past 150 years, many of which have had similar names. The names "Shepherd's Bush", "Wood Lane" and "White City" have each been used by several separate stations around the Shepherd's Bush district, following a number of station renamings and closures. The first Shepherd's Bush station was opened in