Piccadilly line

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Piccadilly line
Piccadilly line flag box.svg
A westbound Piccadilly Line train, formed of 1973 stock, stands at Acton Town tube station with a service for Northfields.
Overview
TypeDeep Tube
SystemLondon Underground
Stations53
Ridership210.169 million (2011/12) [1] passenger journeys
Colour on mapDark Blue
Websitetfl.gov.uk
Operation
Opening1906
Depot(s)Cockfosters
Northfields
Rolling stock1973 Tube Stock
6 cars per trainset
(Will start to be replaced in 2022)
Technical
Line length71 km (44 mi)
Track gauge4 ft 8 12 in (1,435 mm)
Transport for London rail lines
London Underground
Bakerloo
Central
Circle
District
Hammersmith & City
Jubilee
Metropolitan
Northern
Piccadilly
Victoria
Waterloo & City
Other lines
Docklands Light Railway
Tramlink
Overground
 
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Piccadilly line
Piccadilly line flag box.svg
A westbound Piccadilly Line train, formed of 1973 stock, stands at Acton Town tube station with a service for Northfields.
Overview
TypeDeep Tube
SystemLondon Underground
Stations53
Ridership210.169 million (2011/12) [1] passenger journeys
Colour on mapDark Blue
Websitetfl.gov.uk
Operation
Opening1906
Depot(s)Cockfosters
Northfields
Rolling stock1973 Tube Stock
6 cars per trainset
(Will start to be replaced in 2022)
Technical
Line length71 km (44 mi)
Track gauge4 ft 8 12 in (1,435 mm)
Transport for London rail lines
London Underground
Bakerloo
Central
Circle
District
Hammersmith & City
Jubilee
Metropolitan
Northern
Piccadilly
Victoria
Waterloo & City
Other lines
Docklands Light Railway
Tramlink
Overground

The Piccadilly line /ˌpɪkəˈdɪli/ is a line of the London Underground, coloured dark blue on the Tube map. It is the fourth busiest line on the Underground network on the basis of the number of passengers transported per year with 210,000,000. It is mainly a deep-level line, running from the north to the west of London via Zone 1, with a number of surface sections, mostly in its westernmost parts. Of the 53 stations served, 25 are below ground. Some of its stations are shared with the District line and some are shared with the Metropolitan line. It is the second longest line on the system, after the Central line, and has the second most stations, after the District line. It serves many of London's top tourist attractions including Harrods, Hyde Park, Buckingham Palace, Piccadilly Circus (after which the line is named), Leicester Square and Covent Garden, as well as London Heathrow Airport, the busiest airport in Europe (based on passenger numbers).

History[edit]

The beginnings[edit]

See Great Northern, Piccadilly and Brompton Railway for detailed histories of the Great Northern, Piccadilly & Brompton Railway (GNP&BR), the Great Northern & Strand Railway (GN&SR), and the Brompton & Piccadilly Circus Railway (B&PCR).

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, which had been planned as the last section of the GN&SR before the amalgamation with the B&PCR was made. 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-line shuttle operation became the norm on the branch from 1918 on, with the eastern tunnel closed to traffic.

Later changes[edit]

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.

Cockfosters extension[edit]

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 and buses for destinations in North 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:

Westward extensions[edit]

Powers to link with existing tracks west of Hammersmith were originally 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.

These eastward and westward extensions are notable for the Modernist architecture of their new 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] Today, many of these Holden-designed station are listed buildings.

Victoria line[edit]

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.

Heathrow extension[edit]

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.

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 1, 2 and 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 1, 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[edit]

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.

Infrastructure[edit]

Rolling stock[edit]

Piccadilly line trains of 1973 stock at Rayners Lane in 2005

Like virtually all 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.[6] 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.[7]

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.

Signalling[edit]

The line is controlled from a control centre at Earl's Court, which it used to share with the District line. It is in need of resignalling, and this work was planned to be carried out by 2014, but this has been postponed for financial reasons.

Service pattern[edit]

The current off-peak service pattern is:

6 trains per hour CockfostersHeathrow Terminal 5 (via Terminals 1, 2, 3)
6 trains per hour Cockfosters – Heathrow Terminal 4 (returning around the loop and serving Terminals 1, 2, 3)
3 trains per hour Cockfosters – Uxbridge
3 trains per hour Cockfosters – Rayners Lane
3 trains per hour Arnos GroveNorthfields

This forms a service frequency of approximately every 3 minutes through central London, with 21 trains per hour.

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.

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

From 2015, there will be a 24-hour 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.[8]

Map[edit]

Geographically accurate path of the Piccadilly line

Geographically accurate representation of the Piccadilly line.

Stations[edit]

Piccadilly line
Cockfosters
Cockfosters Depot
Oakwood
Southgate
Arnos Grove
Arnos Grove sidings
Bounds Green
Wood Green
Turnpike Lane
Manor House
Finsbury Park Victoria Line National Rail
connection to Victoria line
Arsenal
opened as
Gillespie Road
Holloway Road
Caledonian Road
York Roadclosed 1932
King's Cross St. Pancras Circle Line Hammersmith & City Line Metropolitan Line Northern Line Victoria Line National Rail
connection to Northern line
Russell Square
Holborn Central Line
Aldwych
opened as Strand
closed 1994
Covent Garden
Leicester Square Northern Line
opened as
Cranbourn Street
Piccadilly Circus Bakerloo Line
Green Park Jubilee Line Victoria Line
opened as
Dover Street
Down Streetclosed 1932
Hyde Park Corner
Knightsbridge
Brompton Roadclosed 1934
South Kensington Circle Line District Line
Gloucester Road Circle Line District Line
Earl's Court District Line
District line
to Central London
Barons Court District Line
Hammersmith Circle Line District Line Hammersmith & City Line
Non-stop section
Ravenscourt Park
Stamford Brook
Turnham Green District Line
early mornings & late evenings only
District line
to Richmond
Chiswick Park
Acton Works
enlarge… Acton Town District Line
Ealing Common Depot
enlarge… Ealing Common District Line
Great Western Main Line
to Paddington | to Ealing Broadway
Central line
to Central London | to Ealing Broadway
District line
to Ealing Broadway
North Ealing
Park Royalopened 1931
Central line
to Central London | to West Ruislip
Acton-Northolt Line
Park Royal & Twyford Abbeyclosed 1931
River Brent
Grand Union Canal (Paddington Branch)
Alperton
Sudbury Town
Sudbury Hill(National Rail Sudbury Hill Harrow)
Chiltern Main Line
to Marylebone | to South Ruislip
South Harrow
Metropolitan line
to Baker Street
Rayners Lane Metropolitan Line
joint with Metropolitan
Eastcote Metropolitan Line
Ruislip Manor Metropolitan Line
Ruislip Metropolitan Line
Chiltern Main Line
to West Ruislip | to South Ruislip
Central line
to West Ruislip | to Central London
To Ruislip Central line depot
Ickenham Metropolitan Line
Hillingdonclosed 1992
Hillingdon Metropolitan Lineopened 1992
Uxbridge Depot
Uxbridgeclosed 1938
Uxbridge Metropolitan Lineopened 1938
South Ealing
Northfields
Northfields Depot
Boston Manor
M4 motorway
Grand Junction Canal
Brentford Branch Line
Osterley & Spring Groveclosed 1934
Osterleyopened 1934
Hounslow East
Hounslow Townclosed 1909
Hounslow Central
Hounslow Westclosed 1975
Hounslow Westopened 1975
River Crane
Hatton Cross
Heathrow Terminals 1, 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 explaining about step-free access. This can be found inside every Piccadilly line train.
Notice explaining alternative routes to Covent Garden. This can be found inside every Piccadilly line train.

(In order from east to west.)

Cockfosters branch[edit]

Cockfosters branch
StationImageOpenedAdditional information
CockfostersCockfosters Tube Station 2007.jpg31 July 1933One of the two depots is located heremap 1
Oakwood Handicapped/disabled accessOakwood tube station better.jpg13 March 1933Opened as Enfield West; renamed Enfield West Oakwood 3 May 1934; renamed 1 September 1946map 2
SouthgateSouthgate station building2.JPG13 March 1933in deep-level tunnelmap 3
Arnos GroveArnos Grove stn building.JPG19 September 1932Trains may terminate here: there are several sidings for stabling trainsmap 4
Tunnel section commences
Bounds GreenBounds Green stn building.jpg19 September 1932map 5
Wood GreenWood Green tube station 070414.JPG19 September 1932map 6
Turnpike LaneTurnpike Lane stn building.JPG19 September 1932map 7
Manor HouseManor House stn main entrance.JPG19 September 1932map 8
Original Section
Finsbury Park National RailFinsbury Park tube stn entrance Station Place.JPG15 December 1906map 9
ArsenalArsenal station entrance.JPG15 December 1906Opened as Gillespie Road; renamed Arsenal (Highbury Hill) 31 October 1932; the suffix was later dropped in 1960map 10
Holloway RoadHolloway Road stn building.JPG15 December 1906map 11
Caledonian Road Handicapped/disabled accessCaledonian Road stn building.JPG15 December 1906map 12
King's Cross St. Pancras Handicapped/disabled access National RailKing's Cross St Pancras tube stn Euston Rd NE entrance.JPG15 December 1906Opened as King's Cross; renamed King's Cross for St. Pancras 1927; renamed 1933map 13
Russell SquareRussell Square station.jpg15 December 1906map 14
HolbornHolborn Tube Station - April 2006.jpg15 December 1906Renamed Holborn (Kingsway) 22 May 1933; the suffix was later dropped.map 15
Covent GardenCovent Garden stn building.JPG11 April 1907map 16
Leicester SquareLeicester Square stn northwest entrance.JPG15 December 1906map 17
Piccadilly CircusPiccadilly Circus Tube Station Entrance.jpg15 December 1906map 18
Green Park Handicapped/disabled accessGreen Park stn building.JPG15 December 1906Opened as Dover Street; renamed 18 September 1933map 19
Hyde Park CornerHyde Park Corner stn southwest entrance.JPG15 December 1906In the event of disruption, trains may terminate here via a crossovermap 20
KnightsbridgeKnightsbridge station east entrance.JPG15 December 1906map 21
South KensingtonSouth Kensington station.jpg8 January 1907map 22
Gloucester RoadGlocesterRoadTube.jpg15 December 1906map 23
Earl's Court Handicapped/disabled accessEarlsCourtEntrance2.jpg15 December 1906map 24
Tunnel section ends
Barons CourtBarons-court-tube.jpg15 December 1906map 25
Hammersmith Handicapped/disabled accessHammersmith entrance District and Piccadilly lines.jpg15 December 1906map 26

Extension to Hounslow and Uxbridge[edit]

Extension to Hounslow and Uxbridge
StationImageOpenedAdditional information
Turnham GreenTurnham Green stn building.JPG1 January 1869Originally the London and South Western Railway; first served by the Piccadilly line 23 June 1963map 27
Acton Town Handicapped/disabled accessActonTown1.jpg1 July 1879Originally 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[edit]

Continuing from Acton Town
StationImageOpenedAdditional information
South EalingSouth Ealing stn building.JPG1 May 1883Originally the District Railway, later District line; first served by the Piccadilly line 29 April 1935map 29
NorthfieldsNorthfields station building.JPG16 April 1908Originally 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 ManorBoston Manor stn building.JPG1 May 1883Originally the District line; first served by the Piccadilly line 13 March 1933map 31
OsterleyOsterley station building2.JPG23 March 1934map 32
Hounslow East Handicapped/disabled accessHounslow East stn building.JPG2 May 1909Opened as Hounslow Town by the District line renamed 1 December 1925; first served by the Piccadilly line 13 March 1933map 33
Hounslow CentralHounslow Central building.JPG1 April 1886Opened 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 accessHounslow West stn building.JPG21 July 1884Opened 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 CrossHatton Cross stn northern entrance.JPG19 July 1975map 36
Heathrow Terminal 4 Handicapped/disabled accessHeathrow Terminal 4 tube entrance.JPG12 April 1986map 37
Heathrow Terminals 1, 2, 3 Handicapped/disabled accessHeathrow Terms 123 entrance.JPG16 December 1977Opened as Heathrow Central; renamed Heathrow Central Terminals 1,2,3 on 3 September 1983; renamed 12 April 1986map 38
Heathrow Terminal 5 Handicapped/disabled accessHeathrow Terminal 5 Underground entrance.JPG27 March 2008map 39

Just beyond Heathrow Terminals 1, 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.[9]

Uxbridge branch[edit]

Continuing from Acton Town
StationImageOpenedAdditional information
Ealing CommonEaling Common stn building.JPG1 July 1879Originally the District line; first served by the Piccadilly line 4 July 1932map 40
North EalingNorth Ealing stn building.JPG23 June 1903Originally the District line; first served by the Piccadilly line 4 July 1932map 41
Park RoyalPark Royal stn building.JPG6 July 1931Originally the District line; first served by the Piccadilly line 4 July 1932; renamed Park Royal (Hanger Hill) 1 March 1936; renamed 1947map 42
AlpertonAlperton station building.JPG28 June 1903Opened 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 accessSudbury Town stn main entrance.JPG28 June 1903Originally the District line; first served by the Piccadilly line 4 July 1932map 44
Sudbury Hill (National Rail Sudbury Hill Harrow)Sudbury Hill stn building.JPG28 June 1903Originally the District line; first served by the Piccadilly line 4 July 1932map 45
South HarrowSouth Harrow stn southern entrance.JPG28 June 1903Originally 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 LaneRayners Lane stn building.JPG1 March 1910Originally 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
EastcoteEastcote tube station 1.jpg1 March 1910Originally the District line; first served by the Piccadilly line 23 October 1933map 48
Ruislip ManorRuislip Manor tube station 1.jpg5 August 1912Originally the District line; first served by the Piccadilly line 23 October 1933map 49
RuislipRuislip station building.JPG1 March 1910Originally the District line; first served by the Piccadilly line 23 October 1933 (some trains terminate here in Monday-Friday peak hours)map 50
IckenhamIckenham tube station 1.jpg1 March 1910Originally the District line; first served by the Piccadilly line 23 October 1933map 51
Hillingdon Handicapped/disabled accessHillingdon stn entrance.JPG10 December 1923Originally 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 accessUxbridge station entrance.JPG1 March 1910Terminus. 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[edit]

The Aldwych branch

Future upgrades[edit]

The Piccadilly line is to be upgraded, involving new trains as well as new signalling, increasing the line's capacity by some 24% and reducing journey times by one fifth.[12] 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.[13]

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.[14] 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.[15]

The intention is for the new trains to eventually operate on the Bakerloo, Central, Piccadilly and Waterloo & City lines.[16] On current plans, resignalling work on the Piccadilly line will begin in 2019 and new trains should be in service by 2022.[17]

There are also some proposals, predominantly by Slough Borough Council, to extend the line towards Slough railway station from Heathrow Terminal 5 station.[18] A number of routes have been proposed, and the main ones pass very close to but do not call at Windsor.[18]

See also[edit]

Maps[edit]

References[edit]

Notes
  1. ^ "LU Performance Data Almanac". Transport for London. 2011/12. Retrieved 1 August 2012.  Check date values in: |date= (help)
  2. ^ The London Gazette: no. 28311. pp. 8816–8818. 23 November 1909. Retrieved 27 May 2008.
  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. Retrieved 19 February 2011. 
  6. ^ "1973". Transport for London. n.d. Retrieved 20 April 2013. 
  7. ^ "1973 tube stock". Squarewheels.org.uk. 8 November 2010. Retrieved 20 April 2013. 
  8. ^ TfL Night Tube Map. 2013.
  9. ^ "Piccadilly line's new timetable". Transport for London. 8 January 2008. Archived from the original on 27 February 2008. 
  10. ^ "More tube lines discussed: Easing travel load". The Times (London). 27 April 1965. p. 7. 
  11. ^ "York Way Station". Alwaystouchout.com. 11 January 2006. Retrieved 11 July 2008. 
  12. ^ "Tube improvement plan: Piccadilly line". Transport for London. Retrieved 29 December 2013. 
  13. ^ Ford, Roger (October 2010). "Rolling stock famine deepens as Bombardier feasts on past orders". Modern Railways 67 (745) (London). p. 22. 
  14. ^ Waboso, David (December 2010). "Transforming the tube". Modern Railways (London). p. 44. 
  15. ^ "Siemens unveils London Underground concept train". Railway Gazette International (London). 20 June 2011. 
  16. ^ "Siemens reveals innovative air-con for deep Tube trains". Rail (673) (Peterborough). 29 June 2011. p. 12. 
  17. ^ "Business Plan 2013". Transport for London. December 2013. p. 35. 
  18. ^ a b "Slough Borough Council presentation". Thames Valley Chamber of Commerce Group. Retrieved 29 December 2013. 
Bibliography
  • 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[edit]