Network Rail Begins Major ETCS Rollout for Turbostar Fleet

Network Rail has taken a major step toward expanding digital signalling across Britain’s railway by launching the first stage of a large-scale programme to fit European Train Control System (ETCS) technology to more than 160 Turbostar trains.

The infrastructure operator has issued a preliminary market engagement notice for a long-term contract covering the design, supply and installation of ETCS onboard equipment across the Alstom-built Turbostar fleet.

The programme, estimated to be worth almost £280 million, is expected to run for 15 years from 2028 and will involve trains operated by Chiltern Railways, CrossCountry, East Midlands Railway, Northern, ScotRail, Southern and West Midlands Railway.

According to Network Rail, the Turbostar fleet has been prioritised because ETCS installation and driver training must be completed ahead of planned digital signalling upgrades linked to the Grantham Infrastructure ETCS Scheme on the East Coast Main Line.

The project marks another significant phase in the UK rail industry’s long-term transition away from traditional lineside signalling toward in-cab digital train control systems.

ETCS technology allows train drivers to receive movement authorities and signalling information directly within the cab, improving operational control, network capacity, and reliability while reducing reliance on conventional trackside signals.

The Turbostar family — covering Classes 168, 170, 171 and 172 — was built between 1997 and 2011 and forms a major part of regional and intercity operations across the UK network.

A total of 168 units owned by Porterbrook, Angel Trains and Beacon Rail Leasing are expected to be included in the programme.

The rollout aligns with wider digital railway investment programmes already underway across several major routes.

On the East Coast Main Line, the East Coast Digital Programme has become the UK’s flagship ETCS deployment project, initially focused on improving operational performance and reducing infrastructure maintenance through digital signalling technology.

The removal of conventional lineside signals on the Northern City Line between Finsbury Park and Moorgate in 2025 marked a significant milestone in that transition.

ETCS operation between Welwyn and Hitchin is also expected to begin later this year, with Class 717 trains becoming the first fleet to operate under the system in regular service on that section of route.

Grand Central’s Class 180 fleet and several HST power cars are also due to receive ETCS fitment as part of the wider programme.

Network Rail’s longer-term plans extend beyond the East Coast Main Line, with future ETCS deployment also planned for parts of the West Coast Main Line, Midland Main Line, Brighton Main Line, Great Western Main Line, and sections linked to the Transpennine Route Upgrade.

The expansion of ETCS is widely viewed as a critical part of modernising Britain’s railway infrastructure, particularly as large sections of the signalling network approach renewal age.

Digital signalling technology offers the potential for improved reliability, greater operational flexibility, and increased line capacity while also reducing the long-term maintenance burden associated with traditional signalling systems.

However, the transition also represents one of the largest technical and operational changes facing the rail industry in decades, requiring significant investment in onboard equipment, infrastructure upgrades, driver training, and operational integration.

Network Rail said there had already been strong interest from the supply chain following the market engagement notice, with the formal procurement process expected to progress as the wider digital railway programme accelerates across the national network.