The Circle line is a spiral-shaped London Underground line, running from Hammersmith in the west to Edgware Road and then looping around central London back to Edgware Road. The railway is below ground in the central section and on the loop east of Paddington. Unlike London's deep-level lines, the Circle line tunnels are just below the surface and are of similar size to those on British main lines. Printed in yellow on the Tube map, the 17-mile (27 km) line serves 36 stations, including most of London's main line termini. Almost all of the route, and all 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 141 million passenger journeys were recorded in 2019.
The District line is a London Underground line running from Upminster in the east and Edgware Road in the west to Earl's Court in west London, where it splits into multiple branches. One branch runs to Wimbledon in south-west London and a short branch, with a limited service, only runs for one stop to Kensington (Olympia). The main route continues west from Earl's Court to Turnham Green after which it divides again into two western branches, to Richmond and Ealing Broadway.
The Hammersmith & City line is a London Underground line that runs between Hammersmith in west London and Barking in east London. Coloured pink on the Tube map, it serves 29 stations over 15.8 miles (25.5 km). Between Farringdon and Aldgate East it skirts the City of London, the capital's financial heart, hence the line's name. Its tunnels are just below the surface and are a similar size to those on British main lines. Most of the track and all stations are shared with the District, Circle or Metropolitan lines. Over 141 million passenger journeys are made each year on the Hammersmith & City and Circle lines.
The Piccadilly line is a deep-level London Underground line running from the north to the west of London. It has two branches, which split at Acton Town, and serves 53 stations. The line serves Heathrow Airport, and some of its stations are near tourist attractions such as Piccadilly Circus and Buckingham Palace. The District and Metropolitan lines share some sections of track with the Piccadilly line. Printed in dark blue on the Tube map, it is the sixth-busiest line on the Underground network, with nearly 218 million passenger journeys in 2019.
Acton Town is a London Underground station in the south-west corner of Acton, West London, in the London Borough of Ealing, close to the border with the London Borough of Hounslow. The station is served by the District and Piccadilly lines and is in Travelcard Zone 3. On the District line, it is between Chiswick Park and Ealing Common stations, and on the Piccadilly line it is between Hammersmith and Ealing Common on the Uxbridge branch & South Ealing on the Heathrow branch. Acton Town station was opened as Mill Hill Park on 1 July 1879 by the District Railway. It remained as a terminus until on 1 May 1883 and 23 June 1903 the DR opened two branches from Acton Town to Hounslow Town and Park Royal & Twyford Abbey respectively. On 4 July 1932 the Piccadilly line was extended to Acton Town. District line services to both the Hounslow and Uxbridge branches were withdrawn completely on 9 and 10 October 1964 after which operations were provided by the Piccadilly line alone.
South Kensington is a London Underground station in the district of South Kensington, south west London. It is served by the District, Circle and Piccadilly lines. On the District and Circle lines it is between Gloucester Road and Sloane Square, and on the Piccadilly line between Gloucester Road and Knightsbridge. It is in Travelcard Zone 1. The main station entrance is located at the junction of Old Brompton Road (A3218), Thurloe Place, Harrington Road, Onslow Place and Pelham Street. Subsidiary entrances are located in Exhibition Road giving access by pedestrian tunnel to the Natural History, Science and Victoria and Albert Museums. Also close by are the Royal Albert Hall, Imperial College London, the Royal College of Music, the London branch of the Goethe-Institut and the Ismaili Centre.
Hammersmith is a London Underground station in Hammersmith. It is on the District line between Barons Court and Ravenscourt Park, and on the Piccadilly line between Barons Court and Acton Town or Turnham Green at very early morning and late evening hours. The station is in Travelcard Zone 2.
Gloucester Road is a London Underground station in Kensington, west London. The station entrance is located close to the junction of Gloucester Road and Cromwell Road. Close by are the Cromwell Hospital and Baden-Powell House.
Barons Court is a London Underground station in West Kensington in the London Borough of Hammersmith and Fulham, Greater London. This station serves the District line and the Piccadilly line. Barons Court is between West Kensington and Hammersmith on the District line, and between Earl's Court and Hammersmith on the Piccadilly line and is in Travelcard Zone 2. East of the station, the Piccadilly line descends into tunnel towards Earl's Court and the District line continues in a cutting to West Kensington. The station is the last open air stop for eastbound trains on the Piccadilly line until Arnos Grove and has cross-platform interchange with the District line.
South Harrow is a London Underground station on the Uxbridge branch of the Piccadilly line. It is between Rayners Lane and Sudbury Hill stations. It is located on Northolt Road (A312). The station is in Travelcard Zone 5. There are several bus stands outside the station as well as overnight train stabling sidings.
Ealing Common is a London Underground station on the Uxbridge branch of the Piccadilly line and on the Ealing Broadway branch of the District line. Eastbound, the next station is Acton Town; westbound, the next station is North Ealing on the Piccadilly line and Ealing Broadway on the District line. Here, the District and Piccadilly lines share the same pair of tracks through the station – the only other example where a deep level line and a sub surface line share the same pair of tracks is further up the Uxbridge branch, where the Piccadilly line shares tracks with the Metropolitan line from Rayners Lane to Uxbridge. It is the only station west of Acton Town to be served by both the Piccadilly and District lines.
Turnham Green is a London Underground station in Chiswick of the London Borough of Hounslow, west London. The station is served by the District and Piccadilly lines although currently Piccadilly line trains normally stop at the station only at the beginning and end of the day, running through non-stop at other times. To the east, District line trains stop at Stamford Brook and Piccadilly line trains stop at Hammersmith. To the west, District line trains run to either Chiswick Park or Gunnersbury and Piccadilly line trains stop at Acton Town. The station is in both Travelcard Zone 2 and Zone 3.
The Metropolitan District Railway, also known as the District Railway, was a passenger railway that served London, England, from 1868 to 1933. Established in 1864 to complete an "inner circle" of lines connecting railway termini in London, the first part of the line opened using gas-lit wooden carriages hauled by steam locomotives. The Metropolitan Railway operated all services until the District Railway introduced its own trains in 1871. The railway was soon extended westwards through Earl's Court to Fulham, Richmond, Ealing and Hounslow. After completing the inner circle and reaching Whitechapel in 1884, it was extended to Upminster in Essex in 1902.
The Central London Railway (CLR), also known as the Twopenny Tube, was a deep-level, underground "tube" railway that opened in London in 1900. The CLR's tunnels and stations form the central section of the London Underground's Central line.
The history of the London Underground began in the 19th century with the construction of the Metropolitan Railway, the world's first underground railway. The Metropolitan Railway, which opened in 1863 using gas-lit wooden carriages hauled by steam locomotives, worked with the District Railway to complete London's Circle line in 1884. Both railways expanded, the Metropolitan eventually extending as far as Verney Junction in Buckinghamshire, more than 50 miles (80 km) from Baker Street and the centre of London. The first deep-level tube line, the City and South London Railway, opened in 1890 with electric trains. This was followed by the Waterloo & City Railway in 1898, the Central London Railway in 1900, and the Great Northern and City Railway in 1904. The Underground Electric Railways Company of London (UERL) was established in 1902 to fund the electrification of the District Railway and to complete and operate three tube lines, the Baker Street and Waterloo Railway, the Charing Cross, Euston and Hampstead Railway and the Great Northern, Piccadilly and Brompton Railway, which opened during 1906–1907. By 1907, the District and Metropolitan Railways had electrified the underground sections of their lines.
Ravenscourt Park is a London Underground station located in west Hammersmith, west London. The station is served by the District line and is between Hammersmith and Stamford Brook stations.
Hammersmith (Grove Road) was a railway station on the London and South Western Railway (LSWR), located on Grove Road (now Hammersmith Grove) in Hammersmith, west London. It was opened in 1869 and closed in 1916.
The railway infrastructure of the London Underground includes 11 lines, with 272 stations. There are two types of line on the London Underground: services that run on the sub-surface network just below the surface using larger trains, and the deep-level tube lines, that are mostly self-contained and use smaller trains. Most of the lines emerge on the surface outside the Central London area.
The transport system now known as the London Underground began in 1863 with the Metropolitan Railway, the world's first underground railway. Over the next forty years, the early sub-surface lines reached out from the urban centre of the capital into the surrounding rural margins, leading to the development of new commuter suburbs. At the turn of the nineteenth century, new technology—including electric locomotives and improvements to the tunnelling shield—enabled new companies to construct a series of "tube" lines deeper underground. Initially rivals, the tube railway companies began to co-operate in advertising and through shared branding, eventually consolidating under the single ownership of the Underground Electric Railways Company of London (UERL), with lines stretching across London.
Paddington is a London Underground station served by the Circle and Hammersmith & City lines. It is located adjacent to the north side of Paddington mainline station and has entrances from within the mainline station and from Paddington Basin. The station is between Royal Oak and Edgware Road and is in London Fare Zone 1.
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