Alstom has introduced a cutting-edge signalling system at South Kirkby, located in West Yorkshire, England, significantly improving passenger journey experiences. The new system replaces an outdated manual setup that had been in place for over 50 years on the East Coast Main Line. The former system, increasingly challenging to maintain, was deemed obsolete and has now been replaced by a smart, efficient solution that optimizes signal and point operations.

This advanced system not only enhances operational efficiency but also boosts punctuality for passengers by ensuring smoother train movements. The safety of Network Rail teams working on-site has also been upgraded, as the new setup offers real-time monitoring of train locations across specific track sections.

“The successful completion of the South Kirkby resignalling project is a testament to the strong collaboration between Network Rail, Alstom and our supply chain,” said Joanne Boocock, Digital and Integrated Systems (D&IS) Project Director at Alstom.

At the heart of the project is Alstom’s Smartlock400, a computer-based interlocking system housed at the York Rail Operating Centre. The interlocking technology plays a vital role in ensuring train safety by preventing conflicting movements at junctions and crossings, ensuring smoother and safer operations throughout the route.

She added: “We’re proud to have delivered innovative, future-ready solutions – such as our computer-based interlocking system and object controller – enhancing railway reliability and performance for passengers and freight services. This project exemplifies how digital advancements can futureproof the UK’s railway and we are delighted to have contributed to this milestone achievement.”

Additionally, significant improvements have been made to the lineside equipment, with new power supplies, feeder cables, and casings installed. A total of 26 newly-positioned signals have been strategically placed to improve train flow along the 17-mile track, reducing delays and congestion.

For the safety of Network Rail’s teams, new warning systems have been introduced, while safety-critical work is further supported by devices that allow staff to ‘lock out’ specific sections of track, providing a secure working environment.

The overhaul is expected to save Network Rail 880 hours of staff maintenance annually, offering significant operational cost savings. Furthermore, the updated system is fully compatible with the European Rail Traffic Management System (ERTMS), a digital train control system that will be deployed across the UK in the coming years, ensuring long-term sustainability and future-proofing of the infrastructure.

This major upgrade marks a significant step in modernizing the UK’s rail network, improving both safety and passenger service quality.

“The South Kirkby resignalling project brings noticeable benefits for passengers and our colleagues. The changes improve reliability and performance for services, while also boosting safety for our teams working on the track,” said Paul Carabine, Senior Project Engineer at Network Rail.

He added: “This work was also combined with several other projects in the area to avoid increased passenger and freight disruption in the future, and being ‘digital-ready’ will be a major benefit in the future.”

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