Network Rail has expressed gratitude to passengers following the completion of major engineering upgrades on the East Coast Main Line, marking another milestone in the progress towards the rollout of digital signalling.

Over two consecutive weekends, the East Coast Digital Programme (ECDP) conducted an extensive testing programme in preparation for the introduction of in-cab digital signalling this year.

Testing trains used during both weekends of testing were a Great Northern Class 717 unit and a Grand Central Class 180.

On 15 February, teams delivered 100 individual test scenarios. Following this, a full system data upgrade and further reliability and confidence trials took place, including two-train operations, temporary speed restriction testing, and comprehensive checks of the European Train Control System (ECTCS).

These digital trials were supported by four weekends of infrastructure improvements, including track renewals, points replacements, overhead line enhancements, drainage upgrades, and platform works at Alexandra Palace.

A further day of testing is scheduled for Sunday, 15 March, during the next phase of upgrade work along the East Coast Mainline. The trial forms part of preparations for the introduction of digitally signalled services, set to begin in mid-2026.

The move to digital in-cab signalling will replace traditional lineside signals with real-time information displayed directly in the driver’s cab. The technology is designed to improve reliability, reduce delays, and support more energy-efficient train operations.

“A big thank you to passengers for their patience through all of the closures that have taken place over recent weekends. We’re sorry for the impact this has had on journeys.

“We’ve made a significant amount of progress across a range of testing activity, covering different elements of the system that underpin digital in‑cab signalling. It has taken us a lot closer to being able to operate digitally signalled services on the East Coast Main Line, and the long‑term reliability improvements that will bring to thousands of passengers.”

Ricky Barsby, Network Rail head of access integration, ECDP.