CLASP (British Rail)

The CLASP (Consortium of Local Authorities Special Programme) system was a scheme developed in the 1950s by English local authorities to devise a method of designing and assembling prefabricated buildings for use in the public sector. The former Southern Region of British Rail, the state-owned railway operator, adopted the system in the 1960s and 1970s and used it for signalboxes and station buildings.[1] The Western Region also rebuilt some stations using the same methods.

CLASP structure at Ashtead

History

After the Second World War, many stations and signalboxes on the Southern Region's large and busy network required renewal or replacement, but funds were limited: several electrification schemes had to be paid for, new trains were required and other modernisation work was taking place. By the 1960s, the need for immediate action became so great that the Region's management had to abandon traditional individual rebuilding projects in favour of a mass-produced solution using factory-made parts.[1][2]

The CLASP method, used since the 1950s by local authorities for schools and other public buildings, was chosen. The prefabricated buildings were made of steel and concrete, and had several distinctive characteristics: a steel-framed, flat-roofed "box", usually one storey high (although some two-storey versions were produced),[3] with a large water tank mounted on the roof. Windows were small and placed high on the building, immediately below the roof. Evenly spaced wooden or metal pillars held up canopies which were usually wood-panelled underneath. Pre-formed panels of aggregate-coated concrete formed the outer walls.[1]

The first CLASP signalboxes were built in 1964; in 1965, the scope was widened to include stations. The structures were cheaply built and quickly decayed;[4] several were soon replaced by new buildings. The Southern Region abandoned the scheme in 1973,[4] although the Western Region adopted it at three locations between 1971 and 1977.

List of stations rebuilt using CLASP methods
Station Image Region Year Notes Refs
Sunbury Southern Region 1965 [4]
Fleet Southern Region 1966 Rebuilt 2013–2014 [4][5]
Crawley Southern Region 1967 Incorporated an office development above [1][6][7]
Ashtead Southern Region 1968 Rebuilt 2013 [4][8]
Aylesham Southern Region 1968 [9]
Belmont – Southern Region 1968 Now demolished [4][10]
Belvedere – Southern Region 1968 Rebuilt in 2000 [4][11][12]
Charlton Southern Region 1968 [4][13]
Crayford – Southern Region 1968 Destroyed by fire in 2000; replaced by new building in 2001 [4][14][15]
New Eltham – Southern Region 1968 Since rebuilt [16]
Slade Green Southern Region 1968 [4][17]
Berrylands Southern Region 1969 [4][18]
Hampton Wick Southern Region 1969 [4][19]
Catford Southern Region 1970 [4][20][21]
Poole – Southern Region 1970 Since rebuilt [22]
Oxford – Western Region 1971 Rebuilt, 1990
Longfield Southern Region 1971 [23][24]
Meopham Southern Region 1971 [25][26]
Bristol Parkway – Western Region 1972 Opened 1 May 1972 with temporary CLASP buildings; rebuilt in 2001
Kidbrooke – Southern Region 1972 Since rebuilt [27]
Rainham (Kent) – Southern Region 1972 Demolished in 1989; rebuilt in 1990 [28][29]
East Grinstead Southern Region 1973 New station built 2012; demolished in 2013 [4][7][30][31]
Hassocks Southern Region 1973 Rebuilt 2012–2013 [4][7][32]
Sunningdale Southern Region 1973
Virginia Water Southern Region 1973
Wokingham Southern Region 1973 Rebuilt 2013
Gloucester Western Region 1977 Incorporated an office development above
Lower Sydenham – Southern Region Since rebuilt [4][33]
Strood Southern Region [4]
Forest Hill Southern Region [34]
Brockley Southern Region An unusual two-storey CLASP structure [3]
Wool Southern Region [35]

SCOLA

The SCOLA (Second Consortium of Local Authorities) scheme, similar to CLASP, was also developed for use by schools.[36] Its buildings made use of brick and timber instead of concrete. British Rail used it twice on the Southern Region, when Newington and Teynham stations were rebuilt in the late 1970s to suit one-man operation.[2]

Post-1970s developments

From 1980 and throughout the next ten years and into the 1990s, British Rail adopted a new system of brick buildings with apex roofs, smaller examples resembling a 'chalet'.

gollark: It also makes it harder to enforce/tell "this function needs a socket and not some random number".
gollark: Accidents?
gollark: You could randomly ADD or SUBTRACT stuff and get horrible horrible weird behavior.
gollark: It is not typesafe.
gollark: Sockets are just *integers*? Horrifical.

References

Notes
  1. Brown & Jackson 1990, p. 77.
  2. von Marshall-Blitz, Fritz (2006–2008). "Station Architecture under Network SouthEast". Network SouthEast Railway Society. Archived from the original on 9 July 2009. Retrieved 24 October 2009.
  3. Body 1984, p. 57.
  4. Brown & Jackson 1990, p. 78.
  5. Body 1984, p. 96.
  6. Hoare 1979, p. 102.
  7. Hoare 1979, p. 104.
  8. Body 1984, p. 40.
  9. "Aylesham Halt". Kent Rail website. David Glasspool. 2009. Retrieved 24 October 2009.
  10. Body 1984, p. 91.
  11. Body 1984, p. 138.
  12. "Belvedere". Kent Rail website. David Glasspool. 2009. Retrieved 24 October 2009.
  13. Body 1984, p. 137.
  14. Body 1984, p. 77.
  15. "Crayford". Kent Rail website. David Glasspool. 2009. Retrieved 24 October 2009.
  16. "New Eltham". Kent Rail website. David Glasspool. 2009. Retrieved 24 October 2009.
  17. "Slade Green". Kent Rail website. David Glasspool. 2009. Retrieved 24 October 2009.
  18. Body 1984, p. 44.
  19. Body 1984, p. 105.
  20. Body 1984, p. 64.
  21. "Catford". Kent Rail website. David Glasspool. 2009. Retrieved 24 October 2009.
  22. "Poole". The Somerset & Dorset Joint Railway website. Kevin Clapcott. 10 August 2007. Archived from the original on 21 November 2008. Retrieved 24 October 2009.
  23. "Longfield". Kent Rail website. David Glasspool. 2009. Retrieved 24 October 2009.
  24. Body 1984, p. 125.
  25. "Meopham". Kent Rail website. David Glasspool. 2009. Retrieved 24 October 2009.
  26. Body 1984, p. 130.
  27. "Kidbrooke". Kent Rail website. David Glasspool. 2009. Retrieved 24 October 2009.
  28. "Rainham". Kent Rail website. David Glasspool. 2009. Retrieved 24 October 2009.
  29. Body 1984, p. 154.
  30. Body 1984, p. 88.
  31. Hoare 1979, p. 103.
  32. Body 1984, p. 106.
  33. Body 1984, p. 126.
  34. Body 1984, p. 97.
  35. Body 1984, p. 222.
  36. Jones & Saad 2003, p. 52.

Bibliography
  • Body, Geoffrey (1984). Railways of the Southern Region. PSL Field Guides. Cambridge: Patrick Stephens Ltd. ISBN 0-85059-664-5.CS1 maint: ref=harv (link)
  • Brown, David; Jackson, Alan A. (1990). Network SouthEast Handbook. Harrow Weald: Capital Transport Publishing. ISBN 1-85414-129-5.CS1 maint: ref=harv (link)
  • Hendry, Robert (2007). British Railway Station Architecture in Colour for the Modeller and Historian. Hersham: Ian Allan Publishing. ISBN 978-0-7110-3282-8.CS1 maint: ref=harv (link)
  • Hoare, John (1979). Sussex Railway Architecture. Hassocks: The Harvester Press. ISBN 0-85527-249-X.CS1 maint: ref=harv (link)
  • Jones, Martyn; Saad, Mohammed (2003). Managing Innovation in Construction. London: Thomas Telford Ltd. ISBN 0-7277-3002-9.CS1 maint: ref=harv (link)
  • Maggs, Colin G. (1993). Branch lines of Berkshire. Stroud: Alan Sutton Publishing. ISBN 0-7509-0316-3.CS1 maint: ref=harv (link)
  • Mitchell, Vic; Smith, Keith (1989). Branch Lines around Ascot: from Ash Vale, Weybridge, Staines and Wokingham. Midhurst: Middleton Press. ISBN 0-906520-64-9.CS1 maint: ref=harv (link)
  • Mitchell, Vic; Smith, Keith (2003). Western Main Lines: Oxford to Moreton-in-Marsh. Midhurst: Middleton Press. ISBN 1-904474-15-2.CS1 maint: ref=harv (link)
  • Wikeley, Nigel; Middleton, John (1971). Railway Stations, Southern Region. Beer, Devon: Peco Publications. ISBN 0-900586-31-1.CS1 maint: ref=harv (link)
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