"railways were nationalised on 1 January 1948, and London Transport placed under the authority of the British Transport Commission (BTC). The BTC prioritised the reconstruction of the main line railways over the maintenance of the Underground and most of the unfinished plans of the 1935–40 New Works Programme were shelved or postponed. For the tube lines new cars (1949 Stock) were built to run with the 1938 stock. Some of the cars on the District line were in need of replacement, and in 1953 an unpainted aluminium train (R Stock) entered service, and this became the standard for new trains,"
"that the transport benefits of a Park Royal station on the Central line are not sufficiently high to justify the costs of construction. Central line (London Underground) The Central line is a London Underground line that runs through central London, from , Essex, in the north-east to and in the west. Coloured red on the Tube map, the line serves 49 stations over , which makes it the longest Tube line. It is also one of only two lines on the Underground network to cross the Greater London boundary, the other being the Metropolitan line. One of London's deep-level railways,"
"London Underground infrastructure The infrastructure of the London Underground includes 11 lines, with 270 stations. There are two types of line on the London Underground: services that run on the sub-surface network that is just below the surface and use larger trains, and the deep-tube lines, that are for the most part self-contained and use smaller trains. Most of the lines emerge on to the surface outside the central area. The oldest trains running on the Underground were introduced in 1972. The Underground is electrified using a four-rail system, the DC traction supply being independent of the running rails. Planned"
"London Underground stations that are listed buildings The London Underground is a metro system serving a large part of Greater London and parts of Buckinghamshire, Hertfordshire and Essex. Seventy-one of the 270 London Underground stations use buildings that are on the Statutory List of Buildings of Special Architectural or Historic Interest, and five have entrances in listed buildings. Buildings are given one of three grades: Grade I for buildings of exceptional interest, Grade II* for particularly important buildings of more than special interest and Grade II for buildings that are of special interest. The Metropolitan Railway's original seven stations were"
"Central line (London Underground) The Central line is a London Underground line that runs through central London, from , Essex, in the north-east to and in the west. Coloured red on the Tube map, the line serves 49 stations over , which makes it the longest Tube line. It is also one of only two lines on the Underground network to cross the Greater London boundary, the other being the Metropolitan line. One of London's deep-level railways, Central line trains are smaller than those on British main lines. The line was opened as the Central London Railway in 1900, crossing"
"has expanded to 11 lines, and in 2016–17 carried 1.379 billion passengers, making it the world's 11th busiest metro system. The 11 lines collectively handle approximately 4.8 million passengers a day. The system's first tunnels were built just below the surface, using the cut-and-cover method; later, smaller, roughly circular tunnels—which gave rise to its nickname, the Tube—were dug through at a deeper level. The system has 270 stations and of track. Despite its name, only 45% of the system is underground in tunnels, with much of the network in the outer environs of London being on the surface. In addition,"
"Hammersmith & City line The Hammersmith & City line is a London Underground line that runs between Hammersmith in west London and in east London. Coloured pink on the Tube map, it serves 29 stations over . Between and 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 either the District, Circle or Metropolitan lines, the other parts of London Underground's sub-surface railway, and over 114 million"
"Options for new trains for the Bakerloo and Piccadilly lines are being considered. Crossrail is under construction and expected to open in 2018, providing a new underground route across central London integrated with the London Underground system. Options are being considered for the route of Crossrail 2 on a north-south alignment across London, with hopes that it could be open by 2033. London Underground infrastructure The infrastructure of the London Underground includes 11 lines, with 270 stations. There are two types of line on the London Underground: services that run on the sub-surface network that is just below the surface"
"Metropolitan line The Metropolitan line (colloquially known as the Met) is a London Underground line that runs between in the City of London and and in Buckinghamshire, with branches to in Hertfordshire and in the western London Borough of Hillingdon. Coloured magenta on the tube map, the line is in length and serves 34 stations. Unlike the deep-tube railways, its tunnels are just below the surface (""cut and cover"") and are of a similar size to those on main lines. Just under 67 million passenger journeys were made on the line in 2011/12. The line is a suburban railway and"
"Tube Programme, investigating replacing the trains for the Bakerloo and Piccadilly lines, is looking for trains with better energy conservation and regenerative braking. The Underground serves 270 stations. Fourteen Underground stations are outside Greater London, of which five (Amersham, Chalfont & Latimer, Chesham, and Chorleywood on the Metropolitan line and Epping on the Central line) are beyond the M25 London orbital motorway. The longest distance between two stations is between Chalfont & Latimer and Chesham on the Metropolitan line. The shortest distance between adjacent stations is the between Leicester Square and Covent Garden on the Piccadilly line. The station furthest"
"Underground's eleven lines total in length, making it the third longest metro system in the world. These are made up of the sub-surface network and the deep-tube lines. The Circle, District, Hammersmith & City, and Metropolitan lines form the sub-surface network, with railway tunnels just below the surface and of a similar size to those on British main lines. The Hammersmith & City and Circle lines share stations and most of their track with each other, as well as with the Metropolitan and District lines. The Bakerloo, Central, Jubilee, Northern, Piccadilly, Victoria and Waterloo & City lines are deep-level tubes,"
"Circle line (London Underground) The Circle line is a London Underground line in a spiralling shape, 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. Coloured yellow on the Tube map, the line serves 36 stations, including most of London's main line termini. Most of the route and all of"
"Piccadilly line The Piccadilly line () is a London Underground line that runs between in suburban north London and in the west, where it divides into two branches: one of these runs to Heathrow Airport and the other to in northwest London, with some services terminating at . Coloured dark blue (officially ""Corporate Blue"", Pantone 072) on the Tube map, it is the fourth-busiest line on the Underground network with over 210 million passenger journeys in 2011/12. It is partly a deep-level line, with a number of surface sections, mostly in its westernmost parts. It is named after Piccadilly, the"
"only. For most of its length it is a deep-level tube line. The portion between and opened in 1890 and is the oldest section of deep-level tube line on the Underground network. There were about 294 million passenger journeys recorded in 2016/17 on the Northern line, making it the busiest on the Underground. It is unique in having two different routes through central London. Despite its name, it does not serve the northernmost stations on the network, though it does serve the southernmost station, Morden, as well as 16 of the system's 29 stations south of the River Thames. There"
"London Overground London 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 the city as well as the home county of Hertfordshire, with 112 stations on nine different routes. The Overground forms part of the United Kingdom's National Rail network but it is under the franchise control and branding of Transport for London. Operation has been contracted to Arriva Rail London since 2016. TfL assigned orange as a mode-specific colour for the Overground in branding and"
"Bakerloo line The Bakerloo line () is a London Underground line that runs between in suburban north-west London and in south London, via the West End. Coloured brown on the Tube map, it serves 25 stations, of which 15 are below ground, over . It runs partly on the surface and partly at deep level. The line was so named because it serves ""Baker"" Street and Water""loo"". North of (the section above ground), the line shares tracks with the London Overground Watford DC Line and runs parallel to the West Coast Main Line. There are, however, tunnels on either side"
"London Underground (LU), part of TfL. Tube Lines had a 30-year contract for the Jubilee, Northern and Piccadilly lines, and remains responsible for over 200 miles of track, 255 trains, 100 stations, and over 2,500 bridges, lifts and escalators. The remaining lines of the London Underground were part of Metronet, which existed from 2003 to 2008, when it was taken over by Transport for London after being placed into administration. Tube Lines encountered a funding shortfall for its upgrades and requested that TfL provide an additional £1.75 billion to cover the shortfall; TfL refused, and referred the matter to the"
"South London line The South London line is an Inner London part of the London Overground rail network. The line is run together with the East London line to provide direct services between and . It consists of eight stations, one of which marks the crossover into the East London line network and runs . Most of the line is on high viaduct over other transport infrastructure. Interchanges with the London Underground are at and the closest on its London Overground extension is . The line is in Travelcard Zone 2. From the early 20th century until 2012 a shorter"
"were originally maple wood, then aluminium from 1963, and this had been replaced with plastic or rubber following an increase in serious injuries following falls. However, following the King's Cross fire, aluminium treads have been used. There are 426 escalators on the London Underground system and the longest, at , is at Angel. The shortest, at Stratford, gives a vertical rise of . There are 184 lifts across the Underground, with 72 stations having step-free access from street to train. Major efforts have taken place to improve accessibility across the Underground, with the Jubilee line extension having lifts from opening"
"which he described as his ""brick boxes with concrete lids"", many of which are listed, five at Grade II*. Holden's design for the Underground's headquarters building at 55 Broadway including avant-garde sculptures by Jacob Epstein, Eric Gill and Henry Moore, incorporates St James Park station and is listed Grade I. London Underground stations that are listed buildings The London Underground is a metro system serving a large part of Greater London and parts of Buckinghamshire, Hertfordshire and Essex. Seventy-one of the 270 London Underground stations use buildings that are on the Statutory List of Buildings of Special Architectural or Historic"
"today. Transport for London operates three different railway systems across London. The largest is the London Underground, a rapid transit system operating on sub-surface lines and in deep-level ""tube"" lines. TfL also operates the Docklands Light Railway (DLR), an automated light rail system in the east of the city, and the Tramlink system. The London Underground and the DLR account for 40 percent of the journeys between Inner London and Outer London, making them the most highly used systems in all of London. These three systems extend to most points of London, creating a comprehensive and extensive system. One major"
"the top green light over a yellow light, and clear two green lights. The Metropolitan line's suburban rail character opposed to other London Underground lines is also shown by the long distances between stops. Eight of the top 10 furthest apart stations on the Underground are on the Metropolitan line. The section between Chalfont & Latimer and Chesham is the longest at , whilst the Finchley Road to Wembley Park section is the second longest, and Rickmansworth to Chorleywood the fourth longest overall. The Metropolitan line is the only London Underground line to operate an express service. Designed for commuters"
"and the London Underground in London fare zone 3. It is also served by four other tube stations at North Ealing, South Ealing, Hanger Lane, Northfields and Ealing Common. The Piccadilly line operates at North Ealing, Ealing Common, South Ealing and Northfields; the Central line at Ealing Broadway and Hanger Lane; and the District line at Ealing Broadway and Ealing Common. The stations at Ealing Broadway and West Ealing are served by National Rail operators First Great Western and Heathrow Connect. Early in the 21st century Transport for London (TFL) planned to reintroduce an electric tram line along the Uxbridge"
"London Underground The London Underground (also known simply as the Underground, or by its nickname the Tube) is a public rapid transit system serving the capital city London and some parts of the adjacent counties of Buckinghamshire, Essex and Hertfordshire in the United Kingdom. The Underground has its origins in the Metropolitan Railway, the world's first underground railway. Opened in 1863, it is now part of the Circle, Hammersmith & City and Metropolitan lines; the first line to operate underground electric traction trains, the City & South London Railway in 1890, is now part of the Northern line. The network"
"network, which spans and has two lines with a total of 60 stations, nine of which are underground. It is the second-largest of the four metro systems in the United Kingdom, after the London Underground; the others being the Docklands Light Railway and the Glasgow Subway. The system is owned and operated by the local transport authority Nexus. Between 2010 and 2017 it was operated under contract by DB Regio Tyne & Wear Limited, a subsidiary of Arriva UK Trains. On 1 April 2017, this contract ended, and Nexus took over direct operation of the system for a planned period"
"day on the Underground network, over 1 billion each year. An investment programme is attempting to reduce congestion and improve reliability, including £6.5 billion (€7.7 billion) spent before the 2012 Summer Olympics. The Docklands Light Railway (DLR), which opened in 1987, is a second, more local metro system using smaller and lighter tram-type vehicles that serve the Docklands, Greenwich and Lewisham. There are more than 360 railway stations in the London Travelcard Zones on an extensive above-ground suburban railway network. South London, particularly, has a high concentration of railways as it has fewer Underground lines. Most rail lines terminate around"
"on Thameslink trains, assists passengers to find the most ideal carriage when boarding a train and to help reduce dwell times at stations. If the trial is successful, it will be rolled out across the London Overground network London Overground London 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 the city as well as the home county of Hertfordshire, with 112 stations on nine different routes. The Overground forms part of the United Kingdom's National"
"wish to construct most of the extension on the surface, the first four stations are underground. The line surfaces at Arnos Grove before going back into tunnel to pass through a hill at Southgate. North of Southgate, the line is on the surface for the rest of the route to Cockfosters. Therefore, five of the eight stations on the extension are underground. Piccadilly line extension to Cockfosters The Piccadilly line extension to Cockfosters added eight new stations to the northern end of London Underground's Piccadilly line. The extension through north London from to was opened in three stages between 19"
"26, 40, 43, 76, 133, 141, 242 and heritage route 15H and night routes N8, N11, N21, N26, N76, N133, N199, N550 and N551 serves the complex. The original station had lifts directly to the platforms, but when escalators were later cut through the shafts, access for the mobility-impaired was lost. The only parts of the station that are fully accessible are the DLR platforms, which have lifts from the street (via the rectory of St Mary Woolnoth church). At peak times, Bank is also one of the most congested stations on the Underground, so Transport for London (TfL) is"
"it is the only Underground line to cross the river in this way. The track and stations between and are shared with the Hammersmith & City line, and between and and on the Edgware Road branch they are shared with the Circle line. Some of the stations between and are shared with the Piccadilly line. Unlike London's deep-level lines, the railway tunnels are just below the surface, and the trains are of a similar size to those on British main lines. The District line is the busiest of the sub-surface lines and the fifth-busiest line overall on the Underground, with"
"District line The District line is a London Underground line that runs from in the east to in west London, where it splits into a number of branches. One branch runs to in south-west London, one runs north to Edgware Road, and a short weekends-only branch 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 . Coloured green on the Tube map, the line serves 60 stations over , and with bridges across the River Thames on the Wimbledon and Richmond branches"
"and the mechanisms are regularly degreased to lower the potential for fires. The only wooden escalator not to be replaced was at Greenford station, which remained until October 2015 when TfL replaced it with the first incline lift on the UK transport network. There are 426 escalators on the London Underground system and the longest, at , is at Angel. The shortest, at Stratford, gives a vertical rise of . There are 184 lifts, and numbers have increased in recent years because of investment making tube stations accessible. Over 28 stations will have lifts installed over the next 10 years,"
"in 1999, and key interchange stations such as King's Cross St. Pancras, Victoria station and Green Park becoming step-free. Over 28 stations will become step-free over the next 10 years, taking the total step-free stations to over 100. In October 2015, TfL installed the first incline lift on the UK transport network, at Greenford station. The London Underground comprises eleven lines. London Underground trains come in two sizes, larger sub-surface trains and smaller deep-tube trains. Since the early 1960s, all passenger trains have been electric multiple units with sliding doors and a train last ran with a guard in 2000."