Urban rail signalling - growing the UK’s world-class urban rail 

The UK’s urban rail systems are regarded as the safest and most efficient in the world, and Thales plays a vital role in developing and safeguarding this reputation. 


We provide world-leading technology and expertise for the UK’s major underground and light rail systems. The Communications-Based Train Control (CBTC) technology that we developed is now a ‘default standard’ for urban train control and we cover more kilometres of track with our CBTC system than any other supplier.

Thales’s SelTrac®, LockTrac® and FieldTrac® systems lead the world in signalling technology, while our range of traffic management and communications systems ensure safety, efficiency and comfort for millions of passengers. 

  • Underground
    Thales’s state-of-the art SelTrac® CBTC computer-based signalling system is widely recognised as the world’s most technologically advanced signalling system.
  • Light railway
    Thales’s expertise, services and innovative technology, enables the Docklands Light Railway (DLR) to meet increasing demands and rising safety standards
  • Tramways
    Clean, green and quick – tram systems across the UK play an increasingly important role in making cities more environmentally sustainable.