Skip to main content

Thales to upgrade four London Underground lines

French transportation group Thales has been awarded a £750 million (US$1,160 million) contract by Transport for London (TfL) to upgrade four London Underground (LU) lines. Under the contract, Thales will modernise the signalling and train control system on the Circle, District, Metropolitan and Hammersmith & City lines. Known as the Sub-Surface Lines (SSL), the four lines form a complex network of interlinked routes with numerous junctions which comprise 40 per cent of the LU network and carry up to thre
August 4, 2015 Read time: 3 mins
French transportation group 596 Thales has been awarded a £750 million (US$1,160 million) contract by 1466 Transport for London (TfL) to upgrade four London Underground (LU) lines.

Under the contract, Thales will modernise the signalling and train control system on the Circle, District, Metropolitan and Hammersmith & City lines. Known as the Sub-Surface Lines (SSL), the four lines form a complex network of interlinked routes with numerous junctions which comprise 40 per cent of the LU network and carry up to three million passengers daily.

Thales claims the improvements will boost capacity by an average of a third on the four lines and is vital in order to support London’s growing population. Work is expected to begin later this year and the main benefits will be delivered by 2022, when the frequency of trains running during peak periods will increase to 32 trains per hour in central London – a train every two minutes - with frequency increases at other times as well.

Nick Brown, managing director of London Underground, said: “Having successfully modernised three of the most heavily used lines on our network, we are ready to begin work to bring the next four lines into the modern era. This will transform the journeys of millions of our customers, significantly increasing service reliability and frequency.”

Bombardier was originally awarded the contract in 2011, but it and LU ‘mutually agreed’ in December 2013 to re-let the contract.

The cost per kilometre of re-signalling the four lines is comparable with the successful modernisation of the Northern line which was around half the cost of the Jubilee and Victoria line modernisations delivered under the flawed Public Private Partnership arrangements, ended by the Mayor five years ago.

The overall budget for the four line modernisation programme has been confirmed as US$8.4 trillion, which represents a reduction of US$204 million compared to an earlier estimate announced in March. This budget includes investment in 191 new modern air-conditioned walk through trains, built in the UK, and already introduced on the Metropolitan, Circle and Hammersmith & City and District lines.

The improvements will all be delivered within the existing TfL Business Plan and the programme is expected to have a benefit-cost ratio of around 4.7 to 1, which means that for every one pound invested London gets £4.70 back in economic benefits. Once these four lines have been completed, LU will then move on to introducing new trains and control systems for the Piccadilly, Central, Bakerloo, and Waterloo & City lines.

Related Content

  • August 28, 2015
    Siemens to automate New York’s Queens Boulevard subway
    Siemens has been awarded a US$156 million contract by the Metropolitan Transportation Authority (MTA) to install communications-based train control (CBTC) on the Queens Boulevard Line, one of the busiest subway lines on the New York City transit system. Siemens is supplying the onboard equipment for a total of 305 trains and installing the wayside signalling technology at seven of eight field locations.
  • July 28, 2014
    London transport to get contactless payment
    Millions of customers are set for easier and more convenient journeys from 16 September, when Transport for London (TfL) will introduce contactless payments for all pay as you go customers on the Tube, London Overground, DLR and trams in addition to the capital's buses. The new option means that passengers will no longer be any need to top up Oyster card balances because fares are charged directly to payment card accounts. Contactless payments - credit, debit, charge or pre-paid cards or devices - work i
  • July 9, 2014
    London’s first segregated cycle superhighway planned
    Thousands of cyclists will no longer have to use the Vauxhall gyratory, one of the most threatening in London, under plans published today for central London’s first segregated cycle superhighway. A continuous two-way and separated east-west track will be built from Kennington Oval to Pimlico, through the gyratory and across Vauxhall Bridge, breaking one of the most significant barriers to cycling in the capital. There will also be substantially more space for pedestrians, with around one square kil
  • April 12, 2018
    Louis Berger awarded Mumbai Metro Line four contract
    The Mumbai Metropolitan Region Development Authority (MMRDA) has awarded Louis Berger the project management and construction management contract to work alongside a consortium for the city’s Metro Line 4. Once completed, the service is expected to reduce travel times between Wadala and Kasarvadavali by up to 75%. Line 4, expected to cost ₹15,549 crore ($1.59bn), will be a 32.3-kilometer long elevated corridor with 32 stations. The route will offer interconnectivity between the eastern expressway, central