The Piccadilly line (/ˌpɪkəˈdɪli/) is a London Underground line that runs between Cockfosters in suburban north London and Acton Town in the west where it divides into two branches, one to Heathrow Airport and the other to Uxbridge in north-west London, with some services terminating at Rayners Lane.

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 mainly a deep-level line, with a number of surface sections, mostly in its western-most parts. It is named after Piccadilly, the street above it between Hyde Park Corner and Piccadilly Circus. Some of its stations are shared with the District line (between South Kensington and Ealing Common) and some are shared with the Metropolitan line (from Rayners Lane to Uxbridge). It is the second-longest line on the system after the Central line, and with 53 stations only the District line has more stops.

The Piccadilly line serves many of London's key tourist attractions including the British Museum (Russell Square), the numerous museums around South Kensington, Harrods (Knightsbridge), Hyde Park and Buckingham Palace (within walking distance of Green Park station), Leicester Square (with its own station) and Covent Garden (also with its own station).


The beginnings

An advertisement for some of the destinations on the Piccadilly line

The Piccadilly line began as the Great Northern, Piccadilly & Brompton Railway (GNP&BR), one of several railways controlled by the Underground Electric Railways Company of London (UERL), whose chief director was Charles Tyson Yerkes, although he died before any of his schemes came to fruition.

The GNP&BR was formed from the merger of two earlier, but unbuilt, tube-railway companies taken over in 1901 by Yerkes' consortium: the Great Northern & Strand Railway (GN&SR) and the Brompton & Piccadilly Circus Railway (B&PCR). The GN&SR's and B&PCR's separate routes were linked with an additional section between Piccadilly Circus and Holborn. A section of the District Railway's scheme for a deep-level tube line between South Kensington and Earl's Court was also added in order to complete the route.

When the GNP&BR was formally opened on 15 December 1906, the line ran from the Great Northern Railway's station at Finsbury Park to the District Railway's station at Hammersmith.

On 30 November 1907, the short branch from Holborn to the Strand (later renamed Aldwych) opened; it had been planned as the last section of the GN&SR before the amalgamation with the B&PCR. In 1905 (and again in 1965), plans were made to extend it the short distance south under the River Thames to Waterloo, but this never happened. Although built with twin tunnels, single track shuttle operation became the norm on the branch from 1918 on, with the eastern tunnel closed to traffic.

Later changes

On 1 July 1910 the GNP&BR and the other UERL-owned tube railways (the Baker Street and Waterloo Railway, the Charing Cross, Euston and Hampstead Railway) were merged by private Act of Parliament[2][3] to become the London Electric Railway Company.

On 10 December 1928, a rebuilt Piccadilly Circus station was opened. This included a sub-surface booking hall and eleven escalators, replacing the original lifts, and was the start of a renovation of the whole railway, including a comprehensive programme of station enlargement.

Extension to Cockfosters

Piccadilly line train at Eastcote station

From the 1920s onwards there had been severe congestion at the line's northern terminus, Finsbury Park, where travellers had to change on to trams, buses and LNER main line trains for destinations in North London and North East London. There had been deputations made to Parliament asking for an early extension of the line either towards Tottenham and Edmonton or towards Wood Green and Palmers Green.

The early 1930s was a time of recession, and in order to relieve unemployment, government capital was made available. The chief features of the scheme were an extension northwards from Finsbury Park to Cockfosters. It was also planned to build a station between Manor House and Turnpike Lane at the junction of Green Lanes and St Ann's Road in Harringay, but this was stopped by Frank Pick, who felt that the bus and tram service at this point was adequate. However, a 'Ventilation station', in similar architectural style to tube stations of the time was provided at the site, and is visible today. There was also some opposition from the London and North Eastern Railway to the line. The extension began from Finsbury Park to a point a little south of Arnos Grove. The total length of the extension is 12 km (7.5 mi): it cost £4 million to build and was opened in sections as follows:

  • 19 September 1932: to Arnos Grove
  • 13 March 1933: to Enfield West (now Oakwood), in conjunction with the westward extension to Hounslow West
  • 19 July 1933: completion to Cockfosters

Westward extensions

Powers to link with existing tracks west of Hammersmith were obtained in 1913. A Parliamentary report of 1919 recommended through running to Richmond and Ealing. By the end of the 1920s, the priority had shifted to serving the areas around Hounslow and north and west of Ealing. The outcome involved taking over the inner pair of tracks between Hammersmith and Acton Town as a non-stop service, while the Metropolitan District Railway would continue to provide the stopping service on the outer pair of tracks.[4] Construction of the linking sections started in 1930, and the services opened as follows.

  • to Uxbridge: the District Railway had operated services to Uxbridge since 1910. The District services were taken over by the Piccadilly line:
  • to Hounslow: the line from Acton Town was quadrupled to Northfields on 18 December 1932 and the Piccadilly line was extended:
    • 9 January 1933: to Northfields
    • 13 March 1933: to Hounslow West, in conjunction with the eastern extension to Enfield West.

These eastward and westward extensions feature Modernist architecture at their stations, many of them designed by Charles Holden, who was inspired by examples of Modernist architecture in mainland Europe. This influence can be seen in the bold vertical and horizontal forms, which were combined with the use of traditional materials like brick.[5] Many of these Holden-designed station are listed buildings.

Victoria line

During the planning stages of the Victoria line, a proposal was put forward to transfer Manor House station to the Victoria line, and also to build new "direct" tunnels from Finsbury Park to Turnpike Lane station, thereby cutting the journey time in and out of central London. This idea was eventually rejected due to the inconvenience to passengers that would have been caused during rebuilding, as well as the costs of the new tunnels. Even so, the Piccadilly line was affected at Finsbury Park by the construction of the Victoria line. The westbound service was redirected through new tunnels, to give cross-platform interchange with the Victoria line on the platforms previously used by the Northern City Line. This work was completed in 1965, and the diversion came into use on 3 October 1965, three years before the opening of the first stage of the Victoria line.

Extension to Heathrow

Inside a Piccadilly line carriage

In 1975, a new tunnel section was opened to Hatton Cross from Hounslow West. Hounslow West became a tunnel section station. In 1977, the branch was extended to Heathrow Central. This station was renamed Heathrow Terminals 1, 2, 3 in 1984, with the opening of a one-way loop serving Heathrow Terminal 4, south of the central terminal area. To reflect the demolition of Terminal 1 at the end of June 2015, it was renamed again as Heathrow Terminals 2 & 3.

From 7 January 2005 until 17 September 2006, the loop via Heathrow Terminal 4 was closed to allow the connection of a spur line to the now operational Heathrow Terminal 5 station. All underground services reverted to two-way working into Terminals 2 & 3, which again became the temporary terminus; shuttle buses served Terminal 4 from the Hatton Cross bus station. For a brief period in summer 2006, the line terminated at Hatton Cross and shuttle buses also ran to Terminals 2 & 3 while the track configuration and tunnels were altered for the Terminal 5 link from that station. The station at Terminal 5 opened on 27 March 2008 on the same day Terminal 5 opened.

2005 terrorist attack

On 7 July 2005, a Piccadilly line train was attacked by suicide bomber Germaine Lindsay. The blast occurred at 08:50 BST while the train was between King's Cross St. Pancras and Russell Square. It was part of a co-ordinated attack on London's transport network, and was synchronised with three other attacks – two on the Circle line and one on a bus at Tavistock Square. A small high-explosive device, concealed in a rucksack, was used.

The Piccadilly line bomb resulted in the largest number of fatalities, with 26 people reported killed. Access for the emergency services and evacuation of the public proved difficult as it is a deep-level line. Parts of the line re-opened on 8 July, and full service was restored on 4 August, four weeks after the bomb.



The line from Cockfosters to Heathrow and South Harrow is controlled from a control centre at Earl's Court, which too is shared with the District line controlling the line from Ealing Broadway, Kensington (Olympia) and Parsons Green to High Street Kensington and Tower Hill.[6] Rayners Lane signal cabin is responsible for signalling the Piccadilly line from South Harrow to Uxbridge as well as the Metropolitan line joining at Rayners Lane.[7]

Service pattern

Piccadilly line services are generally as follows:[8]

  • Peak services at 24 tph in the core section between Acton Town and Arnos Grove:
    • 6 tph Cockfosters - Heathrow Terminals 4 & 2,3
    • 6 tph Arnos Grove - Heathrow Terminals 2,3 & 5
    • 12 tph Cockfosters - Rayners Lane (most services continue to Uxbridge)
  • Off-Peak services at 21 tph in the core section between Acton Town and Arnos Grove:
    • 6 tph Cockfosters - Heathrow Terminals 4 & 2,3
    • 6 tph Cockfosters - Heathrow Terminals 2,3 & 5
    • 6 tph Cockfosters - Rayners Lane (3 tph continue to Uxbridge
    • 3 tph Arnos Grove - Northfields
  • Night Tube:
    • 6 tph Cockfosters - Heathrow Terminals 2,3 & 5

Often late evening services terminate at Oakwood instead of Cockfosters.

Trains also make an additional stop at Turnham Green in the early morning and late evening but do not call there during the main part of the day due to capacity constraints with signalling.

Other services operate at times, especially at the start and towards the end of the traffic day.

Since 16 December 2016, there is a 24-hour Night Tube service on Friday and Saturday nights from Heathrow Terminal 5 to Cockfosters, but not from Uxbridge to Acton Town or the Heathrow Terminal 4 loop.[9]


Geographically accurate path of the Piccadilly line

Rolling stock

Piccadilly line trains of 1973 stock at Rayners Lane in 2005

Like most Underground lines, the Piccadilly line is operated by a single type of rolling stock, in this case the 1973 tube stock, in the standard London Underground livery of blue, white and red. Seventy-nine trains out of a fleet of 86 are needed to run the line's peak service. One unit (166-566-366) was severely damaged by the terrorist attack of 7 July 2005.

The stock was refurbished by Bombardier Transportation between 1995 and 2000.[10] Changes included the removal of transverse seating, strap hangers replaced with grab bars, new floor material and a full repaint into London Underground's corporate livery.[11]

The line was previously worked by 1959 stock, 1956 stock, 1938 stock, standard tube stock and 1906 gate stock.

The line has two depots, at Northfieldsmap 55 and Cockfosters.map 54 There are sidings at Oakwood, South Harrow, Arnos Grove, Rayners Lane, Down Street, Wood Green, Acton Town, Ruislip and Uxbridge.

List of stations

Piccadilly line
Arnos Grove
Arnos Grove sidings
Bounds Green
Wood Green
Turnpike Lane
Harringay (St. Ann's Road)
proposed but never built
Manor House
Finsbury Park Victoria Line National Rail
Holloway Road
Caledonian Road
York Road
King's Cross St. Pancras
Circle line (London Underground) Hammersmith & City Line Metropolitan Line Northern Line Victoria Line National Rail
Russell Square
Holborn Central line (London Underground)
Covent Garden
Leicester Square Northern Line
Piccadilly Circus Bakerloo Line
Green Park Jubilee Line Victoria Line
Down Street
Hyde Park Corner
Brompton Road
South Kensington Circle line (London Underground) District Line
Gloucester Road Circle line (London Underground) District Line
Earl's Court District Line
Barons Court District Line
Hammersmith Circle line (London Underground) District Line Hammersmith & City Line
Non-stop section
Non-stop section
Ravenscourt Park (District Line)
Stamford Brook (District Line)
Turnham Green (District Line)
limited Piccadilly line services
District line
to Richmond
Chiswick Park (District Line)
Acton works
Acton Town District Line enlarge…
Ealing Common depot
Ealing Common District Line enlarge…
North Ealing
Park Royal
Park Royal & Twyford Abbey
Sudbury Town
Sudbury Hill
South Harrow
Rayners Lane Metropolitan Line
joint with Metropolitan line
joint with Metropolitan line
Eastcote Metropolitan Line
Ruislip Manor Metropolitan Line
Ruislip Metropolitan Line
to Ruislip Central line depot
Ickenham Metropolitan Line
Hillingdon Metropolitan Line
Uxbridge depot
(original site)
Uxbridge Metropolitan Line
South Ealing
Northfields depot
Boston Manor
Osterley & Spring Grove
Hounslow EastHounslow Town
Hounslow Central
Hounslow West
Hatton Cross
Heathrow Terminals 2 & 3 London Heathrow Airport Template:Heathrow rail services
Heathrow Terminal 4 London Heathrow Airport
Heathrow Terminal 5 London Heathrow Airport Template:Heathrow rail services
Notice found inside all Piccadilly line trains explaining step-free access
Notice found inside all Piccadilly line trains explaining alternative routes to Covent Garden

Open stations

Cockfosters branch

Cockfosters branch
Station Image Opened Additional information
Cockfosters Cockfosters Tube Station 2007.jpg 31 July 1933 One of the two depots is located heremap 1
Oakwood Handicapped/disabled access Oakwood tube station better.jpg 13 March 1933 Opened as Enfield West; renamed Enfield West Oakwood 3 May 1934; renamed 1 September 1946map 2
Southgate Southgate station building2.JPG 13 March 1933 in deep-level tunnelmap 3
Arnos Grove Arnos Grove stn building.JPG 19 September 1932 Trains may terminate here: there are several sidings for stabling trainsmap 4
Tunnel section commences
Bounds Green Bounds Green stn building.jpg 19 September 1932 map 5
Wood Green Wood Green tube station 070414.JPG 19 September 1932 map 6
Turnpike Lane Turnpike Lane stn building.JPG 19 September 1932 map 7
Manor House Manor House stn main entrance.JPG 19 September 1932 map 8
Original Section
Finsbury Park National Rail Finsbury Park tube stn entrance Station Place.JPG 15 December 1906 map 9
Arsenal Arsenal station entrance.JPG 15 December 1906 Opened as Gillespie Road; renamed Arsenal (Highbury Hill) 31 October 1932; the suffix was later dropped in 1960map 10
Holloway Road Holloway Road stn building.JPG 15 December 1906 map 11
Caledonian Road Handicapped/disabled access Caledonian Road stn building.JPG 15 December 1906 map 12
King's Cross St. Pancras Handicapped/disabled access National Rail King's Cross St Pancras tube stn Euston Rd NE entrance.JPG 15 December 1906 Opened as King's Cross; renamed King's Cross for St. Pancras 1927; renamed 1933map 13
Russell Square Russell Square station.jpg 15 December 1906 map 14
Holborn Holborn Tube Station - April 2006.jpg 15 December 1906 Renamed Holborn (Kingsway) 22 May 1933; the suffix was later dropped.map 15
Covent Garden Covent Garden stn building.JPG 11 April 1907 map 16
Leicester Square Leicester Square stn northwest entrance.JPG 15 December 1906 map 17
Piccadilly Circus Piccadilly Circus Tube Station Entrance.jpg 15 December 1906 map 18
Green Park Handicapped/disabled access Green Park stn building.JPG 15 December 1906 Opened as Dover Street; renamed 18 September 1933map 19
Hyde Park Corner Hyde Park Corner stn southwest entrance.JPG 15 December 1906 In the event of disruption, trains may terminate here via a crossovermap 20
Knightsbridge Knightsbridge station east entrance.JPG 15 December 1906 map 21
South Kensington South Kensington station.jpg 8 January 1907 map 22
Gloucester Road GlocesterRoadTube.jpg 15 December 1906 map 23
Earl's Court Handicapped/disabled access EarlsCourtEntrance2.jpg 15 December 1906 map 24
Tunnel section ends
Barons Court Barons-court-tube.jpg 15 December 1906 map 25
Hammersmith Handicapped/disabled access Hammersmith entrance District and Piccadilly lines.jpg 15 December 1906 map 26

Extension to Hounslow and Uxbridge

Extension to Hounslow and Uxbridge
Station Image Opened Additional information
Turnham Green Turnham Green stn building.JPG 1 January 1869 Originally the London and South Western Railway; first served by the Piccadilly line 23 June 1963map 27
Acton Town Handicapped/disabled access ActonTown1.jpg 1 July 1879 Originally the District Railway, later District line; first served by the Piccadilly line 4 July 1932map 28
The line splits here into two branches – the Heathrow branch and the Uxbridge branch.

Heathrow branch

Continuing from Acton Town
Station Image Opened Additional information
South Ealing South Ealing stn building.JPG 1 May 1883 Originally the District Railway, later District line; first served by the Piccadilly line 29 April 1935map 29
Northfields Northfields station building.JPG 16 April 1908 Originally the District line (one of the two depots is here and some trains terminate here); first served by the Piccadilly line 9 January 1933map 30
Boston Manor Boston Manor stn building.JPG 1 May 1883 Originally the District line; first served by the Piccadilly line 13 March 1933map 31
Osterley Osterley station building2.JPG 23 March 1934 map 32
Hounslow East Handicapped/disabled access Hounslow East stn building.JPG 2 May 1909 Opened as Hounslow Town by the District line renamed 1 December 1925; first served by the Piccadilly line 13 March 1933map 33
Hounslow Central Hounslow Central building.JPG 1 April 1886 Opened as Heston-Hounslow by the District line, renamed 1 December 1925; first served by the Piccadilly line 13 March 1933map 34
Tunnel section recommences
Hounslow West Handicapped/disabled access Hounslow West stn building.JPG 21 July 1884 Opened as Hounslow Barracks) by the District line, renamed 1 December 1925; first served by the Piccadilly line 13 March 1933, resited 19 July 1975map 35
Hatton Cross Hatton Cross stn northern entrance.JPG 19 July 1975 map 36
Heathrow Terminal 4 Handicapped/disabled access Heathrow Terminal 4 tube entrance.JPG 12 April 1986 map 37
Heathrow Terminals 2 & 3 Handicapped/disabled access Heathrow Terms 123 entrance.JPG 16 December 1977 Opened as Heathrow Central; renamed Heathrow Central Terminals 1, 2, 3 on 3 September 1983; renamed Heathrow Terminals 1, 2, & 3 on 12 April 1986; renamed Heathrow Terminals 2 & 3 in January 2016map 38
Heathrow Terminal 5 Handicapped/disabled access Heathrow Terminal 5 Underground entrance.JPG 27 March 2008 map 39

Just beyond Heathrow Terminals 2 & 3 tube station, the line goes into a new section to serve Heathrow Terminal 5 tube station, which opened in March 2008. Half of all Heathrow trains use the loop and serve Terminal 4 and the other half omit Terminal 4 and serve Terminal 5.[12]

Uxbridge branch

Continuing from Acton Town
Station Image Opened Additional information
Ealing Common Ealing Common stn building.JPG 1 July 1879 Originally the District line; first served by the Piccadilly line 4 July 1932map 40
North Ealing North Ealing stn building.JPG 23 June 1903 Originally the District line; first served by the Piccadilly line 4 July 1932map 41
Park Royal Park Royal stn building.JPG 6 July 1931 Originally the District line; first served by the Piccadilly line 4 July 1932; renamed Park Royal (Hanger Hill) 1 March 1936; renamed 1947map 42
Alperton Alperton station building.JPG 28 June 1903 Opened as Perivale-Alperton by the District line; renamed 7 October 1910; first served by the Piccadilly line 4 July 1932map 43
Sudbury Town Handicapped/disabled access Sudbury Town stn main entrance.JPG 28 June 1903 Originally the District line; first served by the Piccadilly line 4 July 1932map 44
Sudbury Hill (National Rail Sudbury Hill Harrow) Sudbury Hill stn building.JPG 28 June 1903 Originally the District line; first served by the Piccadilly line 4 July 1932map 45
South Harrow South Harrow stn southern entrance.JPG 28 June 1903 Originally the District line; first served by the Piccadilly line 4 July 1932; closed when re-located 4 July 1935; re-opened 5 July 1935map 46
Rayners Lane Rayners Lane stn building.JPG 1 March 1910 Originally the District line; first served by the Piccadilly line 23 October 1933 (from here to Uxbridge trains share track with Metropolitan line, and some trains terminate here)map 47
Eastcote Eastcote tube station 1.jpg 1 March 1910 Originally the District line; first served by the Piccadilly line 23 October 1933map 48
Ruislip Manor Ruislip Manor tube station 1.jpg 5 August 1912 Originally the District line; first served by the Piccadilly line 23 October 1933map 49
Ruislip Ruislip station building.JPG 1 March 1910 Originally the District line; first served by the Piccadilly line 23 October 1933 (some trains terminate here in Monday-Friday peak hours)map 50
Ickenham Ickenham tube station 1.jpg 1 March 1910 Originally the District line; first served by the Piccadilly line 23 October 1933map 51
Hillingdon Handicapped/disabled access Hillingdon stn entrance.JPG 10 December 1923 Originally the District line; first served by the Piccadilly line 23 October 1933; renamed Hillingdon (Swakeleys) April 1934; the suffix was later dropped; closed when re-located 5 December 1992; re-opened 6 December 1992map 52
Uxbridge Handicapped/disabled access Uxbridge station entrance.JPG 1 March 1910 Terminus. Originally the District line; first served by the Piccadilly line 23 October 1933; closed when re-located 3 December 1938; re-opened 4 December 1938map 53

Closed stations

The Aldwych branch
  • Aldwych opened on 30 November 1907 as the Strand tube station. It was at the end of a branch line from the main line at Holborn. An evening through-northbound 'Theatre' train ran until 1910. From 1917 onwards, it was served by a shuttle from Holborn. In the same year it was renamed Aldwych when Charing Cross on the Northern line was renamed Strand. It was temporarily closed in 1940 during World War II to be used as an air-raid shelter. It re-opened in 1946. The possibility of extending the branch to Waterloo was discussed, but the scheme never proceeded.[13] Aldwych was closed on 30 September 1994; the level of use was said to be too low to justify the £1 million in estimated costs of a complete replacement of the lifts. The station is regularly used by film makers.
  • Brompton Road opened 15 December 1906; closed 30 July 1934, between Knightsbridge and South Kensington.
  • Down Street opened 15 December 1906; closed 21 May 1932, between Green Park and Hyde Park Corner.
  • Osterley & Spring Grove first served 13 March 1933; closed 24 March 1934 between Boston Manor and Hounslow East. It was replaced by Osterley.
  • Park Royal & Twyford Abbey opened 23 June 1903; closed 5 July 1931. Although on the route of the current Piccadilly line, a short distance north of the present Park Royal station, it was never served by Piccadilly line trains. It was opened by the District line, the original operator of the line between Ealing Common and South Harrow, and was closed and replaced by the present Park Royal station before the Piccadilly line started running trains to South Harrow in 1932.
  • York Road opened 15 December 1906; closed 19 September 1932, between King's Cross St Pancras and Caledonian Road. It has been suggested[14] that this station may be reopened to serve new developments on the nearby Kings Cross railway lands, but this idea is not being progressed at present. The road the station served, 'York Road', has since been renamed 'York Way'.

Future upgrades

The Piccadilly line is to be upgraded under the New Tube for London scheme, involving new trains as well as new signalling, increasing the line's capacity by some 24% and reducing journey times by one fifth.[15] Bids for new rolling stock were originally submitted in 2008. However, after the acquisition of Tube Lines by Transport for London in June 2010, this order was cancelled and the upgrade postponed.[16]

Meanwhile, LUL has invited Alstom, Bombardier and Siemens to develop a new concept of lightweight, low-energy, semi-articulated train for the deep-level lines, provisionally called "Evo" (for 'evolution'). So far only Siemens has publicised an outline design, which would feature air-conditioning and would also have battery power enabling the train to run on to the next station if third and fourth rail power were lost. It would have a lower floor and 11% higher passenger capacity than the present tube stock.[17] There would be a weight saving of 30 tonnes, and the trains would be 17% more energy-efficient with air-conditioning included, or 30% more energy-efficient without it.[18]

The intention is for the new trains to eventually operate on the Bakerloo, Central, Piccadilly and Waterloo & City lines.[19] On current plans, resignalling work on the Piccadilly line will begin in 2019 and new trains should be in service by 2022.[20]

There are also some proposals, predominantly by Slough Borough Council, to extend the line towards Slough railway station from Heathrow Terminal 5 station.[21] A number of routes have been proposed, and the main ones pass very close to but do not call at Windsor.[21]

See also

  • Leslie Green – architect of the Great Northern, Piccadilly & Brompton Railway's early stations


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  1. ^ "LU Performance Data Almanac". Transport for London. 2011–2012. Archived from the original on 2012-08-03. Retrieved 1 August 2012. 
  2. ^ "No. 28311". The London Gazette. 23 November 1909. pp. 8816–8818. 
  3. ^ The merger was carried out by transferring the assets of the CCE&HR and the BS&WR to the GNP&BR and renaming the GNP&BR as the London Electric Railway.
  4. ^ Barker & Robbins 1974, p. 252.
  5. ^ "Underground Journeys: Changing the face of London Underground". Royal Institute of British Architects. Archived from the original on 4 May 2011. Retrieved 19 February 2011. 
  6. ^ Signalman, Llangollen (6 November 2013). "Earls Court Control Room". Flickr. Retrieved 14 July 2017. 
  7. ^ Signalman, Llangollen (1 October 2015). "Rayners Lane". Flickr. Retrieved 14 July 2017. 
  8. ^ TFL. "London Underground Working Timetable" (PDF). TFL. 
  9. ^ "The Night Tube". tfl.gov.uk. Transport for London. Retrieved 14 July 2017. 
  10. ^ "1973". Transport for London. n.d. Retrieved 20 April 2013. 
  11. ^ "1973 tube stock". Squarewheels.org.uk. 8 November 2010. Retrieved 20 April 2013. 
  12. ^ "Piccadilly line's new timetable". Transport for London. 8 January 2008. Archived from the original on 27 February 2008. 
  13. ^ "More tube lines discussed: Easing travel load". The Times. London. 27 April 1965. p. 7. 
  14. ^ "York Way Station". Alwaystouchout.com. 11 January 2006. Retrieved 11 July 2008. 
  15. ^ "Tube improvement plan: Piccadilly line". Transport for London. Retrieved 29 December 2013. 
  16. ^ Ford, Roger (October 2010). "Rolling stock famine deepens as Bombardier feasts on past orders". Modern Railways. 67 (745). London. p. 22. 
  17. ^ Waboso, David (December 2010). "Transforming the tube". Modern Railways. London. p. 44. 
  18. ^ "Siemens unveils London Underground concept train". Railway Gazette International. London. 20 June 2011. 
  19. ^ "Siemens reveals innovative air-con for deep Tube trains". Rail (673). Peterborough. 29 June 2011. p. 12. 
  20. ^ "Business Plan 2013" (PDF). Transport for London. December 2013. p. 35. 
  21. ^ a b "Slough Borough Council presentation" (PDF). Thames Valley Chamber of Commerce Group. Archived from the original (PDF) on 9 August 2013. Retrieved 29 December 2013. 
  • Barker, T.C.; Robbins, Michael (1974). A History of London Transport: Volume two – the Twentieth Century to 1970. London: George Allen & Unwin Ltd. ISBN 0-04-385067-7. 
  • Croome, Desmond F. (1998). The Piccadilly Line – An Illustrated History. London: Capital Transport Publishing. ISBN 1-85414-192-9. 
  • Horne, Mike (2007). The Piccadilly Tube – A History of the First Hundred Years. London: Capital Transport. ISBN 978-1-85414-305-1. 
  • Lee, Charles E. (1966). Sixty Years of the Piccadilly. London: London Transport. 
  • Lee, Charles E. (1973). The Piccadilly Line: a brief history. London: London Transport. ISBN 0-85329-042-3. 

External links

Route map: Google

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