Editing Transport for London (section)

===Connect project===
Transport for London introduced the "Connect" project for radio communications during the 2000s, to improve radio connections for London Underground staff and the emergency services.<ref name="REGISTER">{{cite web |url = https://www.theregister.co.uk/2006/06/06/connect_project_secrecy/ |title = TfL keeps schtum on underground radio plans |work = [[The Register]] |date = 6 June 2006 |access-date = 19 June 2014 |archive-date = 2 April 2015 |archive-url = https://web.archive.org/web/20150402095251/http://www.theregister.co.uk/2006/06/06/connect_project_secrecy/ |url-status = live}}</ref><ref name="ASCENDA">{{cite web |url = http://www.ascenda-mcl.com/IMG/pdf/tfl-investment-programme-london-underground.pdf |title = TfL investment programme – London Underground |page = 10 |publisher = Transport for London |year = 2010 |access-date = 19 June 2014 |archive-url = https://web.archive.org/web/20150402201046/http://www.ascenda-mcl.com/IMG/pdf/tfl-investment-programme-london-underground.pdf |archive-date = 2 April 2015 |url-status = usurped}}</ref> The system replaced various separate radio systems for each tube line, and was funded under a [[private finance initiative]]. The supply contract was signed in November 1999 with [[Motorola]] as the radio provider alongside Thales. Citylink's shareholders are [[Thales Group]] (33 per cent), [[Fluor Corporation]] (18%), Motorola (10%), Laing Investment (19.5%) and [[HSBC]] (19.5%). The cost of the design, build and maintain contract was £2&nbsp;billion over twenty years. Various subcontractors were used for the installation work, including Brookvex and Fentons.{{CN|date=February 2024}}

A key reasoning for the introduction of the system was in light of the [[King's Cross fire]] disaster, where efforts by the emergency services were hampered by a lack of radio coverage below ground. Work was due to be completed by the end of 2002, although suffered delays due to the necessity of installing the required equipment on an ageing railway infrastructure with no disruption to the operational railway. On 5 June 2006, the [[London Assembly]] published the [[7 July 2005 London bombings|7 July Review Committee]] report, which urged TfL to speed up implementation of the Connect system.<ref name="REGISTER" />

The [[East London line]] was chosen as the first line to receive the TETRA radio in February 2006, as it was the second smallest line and is a mix of surface and sub surface. That same year, it was rolled out to the District, Circle, Hammersmith & City, Metropolitan and Victoria lines, with the Bakerloo, Piccadilly, Jubilee, Waterloo & City and Central lines following during 2007.<ref name="OFCOM">{{cite web |url = http://stakeholders.ofcom.org.uk/binaries/consultations/spec_trad/responses/lu.pdf |title = Response from the Chief Engineers' Directorate of London Underground to the OFCOM Consultative Document "Spectrum Trading Consultation" |page = 10 |publisher = [[Ofcom]] |date = November 2003 |access-date = 19 June 2014 |archive-date = 24 December 2013 |archive-url = https://web.archive.org/web/20131224221751/http://stakeholders.ofcom.org.uk/binaries/consultations/spec_trad/responses/lu.pdf |url-status = live}}</ref> The final line, the Northern, was handed over in November 2008.

The 2010 TfL investment programme included the project "LU-PJ231 LU-managed Connect communications", which provided Connect with a new transmission and radio system comprising 290 cell sites with two to three base stations, 1,400 new train mobiles, 7,500 new telephone links and 180 [[Closed-circuit television|CCTV]] links.<ref name="ASCENDA" />