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.

For more information on companies in this article

Related Content

  • Peru lines up road, rail concessions for 2015
    November 20, 2014
    Peru plans to award next year infrastructure concessions including rail and road projects. Hydro and thermal power plants and liquefied petroleum gas distribution in the capital are also being lined up, a senior government official has said. Concessions will include the fourth stretch of the Longitudinal de la Sierra highway, which calls for the construction, operation and maintenance of a 640 kilometre stretch of Peru's Longitudinal de la Sierra highway, connecting Huancayo, Izcuchaca, Mayoc and Ayacuch
  • First three lines of Riyadh Metro to open
    November 29, 2024
    Driverless mass transit system runs 176km in Saudi Arabia's capital
  • Eco Multi monitors London walking and cycling routes
    September 3, 2012
    Traffic Technology Ltd. has revealed its involvement over the last three years with Transport for London (TfL) in developing and deploying monitoring systems for the London Olympics 2012 games walking and cycling routes. The company supplied its Eco Multi pedestrian and cycle monitoring systems which have been installed in four locations on the eight designated ‘2012 Games Walking & Cycling Routes’. Traffic Technology says the unique ‘click and lock’ modular system of the Eco Multi enables several units to
  • Personal Rapid Transit, clear benefits for European cities
    July 26, 2012
    David Crawford watches the race to get the world's first PRT system up and running. To paraphrase the old joke about buses bunching, you seem to have to wait several decades for a Personal Rapid Transit (PRT) system, and then half a dozen come along together. Currently, in fact, there are well over that number of schemes for driverless electric passenger-carrying 'pod' networks at various stages of planning, design and implementation around the world. Locations range from a straight-off-the-drawing board ne