Central Rail Systems Alliance (CRSA)

Balfour Beatty has an 80% share in the 10-year alliance responsible for the development, design and delivery of track renewals and crossings, as well as associated infrastructure works across the London North West, London North East and East Midland routes.

The alliance between Network Rail, Balfour Beatty, AtkinsRéalis and TSO has been created to make a positive impact on the UK track renewals industry by drawing on the strengths of all alliance partners and collaborative working.

Bringing together the companies’ deep domain knowledge and experience in critical rail infrastructure and track renewals, the alliance will deploy innovative working methods. This includes a digital management platform incorporating mechanised processes and digital solutions to realise efficiencies and create a more reliable railway infrastructure.

Here are a few highlights from just some of the many projects CRSA has successfully delivered:

  • King’s Cross Remodelling Project – dubbed ‘King’s Uncrossed’, the project improves reliability and punctuality for passengers and involved the wholesale replacement of the more than 40-year-old tracks, as well as a redesign of the track layout on the 1.5-mile approach into the station. It also saw the re-opening of a disused tunnel after 44 years to add two additional lines into the station from the north.
  • Cricklewood - switches and crossings renewed for two crossovers and one double junction in Central London - successfully completed within four weekends
  • Kilsby Tunnel – successful delivery of complex drain and track renewals works within Kilsby Tunnel. The work improves future journeys on Europe’s busiest mixed-use passenger and freight railway line by reducing the risk of flooding.
  • Wembley – 450 yards of track was renewed at the extremely busy Wembley Station. Due to the single-track and the site restrictions, the team utilised Balfour Beatty’s innovative new track construction (NTC) machine, which provides a continuous, automated solution for installing new track.