T5 tunnels energised

Terminal 5 (T5) at Heatbrow Airport, London, UK is due to open in March 2008. It will be served by both BAA's Heathrow Express and London Underground's Piccadilly Line. Passive provision has been made for Airtrack, the service running west out of the airport to Staines and Waterloo. The tunnels associated with the construction of T5 are discussed: the extension to the Piccadilly Line and the Heathrow Express. Passive provision had been made for the Heathrow Express when the lines were originally built in the 1990s. A junction on the Piccadilly Line was more of a challenge, requiring top-down excavation of a box to install a step-plate junction. Bored and cut-and-cover tunnels join the junctions with the new station that has been constructed under the main T5 building. The T5 station, which will be owned and operated by BAA, will have six platforms. Balfour Beatty Rail Projects has been responsible for fitting out the tunnels with track, traction power, ventilation, drainage, and fire protection equipment. The Heathrow Express is signalled from the Network Rail control centre at Slough. London Underground PPP contractor Tube Lines has carried out signalling on the Piccadilly Line extension and Westinghouse has installed signalling on the Heathrow Express extension. Preparations for service are discussed and the role of the lines in the 2012 London Olympics is outlined.


  • English

Media Info

  • Pagination: 46-8
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01061106
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Sep 10 2007 2:23PM