Passengers on the East Coast Main Line are set to benefit from improved journey reliability following the successful installation of modern signalling equipment at South Kirkby, West Yorkshire. The upgrade, delivered by Alstom in collaboration with Network Rail, replaces an outdated manual system that had been in operation for over 50 years.
The newly implemented system enhances operational efficiency by automating signals and points management, contributing to more punctual services. Additionally, it improves safety for railway workers by offering greater oversight of train movements across the network.
A key feature of the upgrade is the introduction of Smartlock 400, Alstom’s computer-based interlocking system, housed at the York Rail Operating Centre. Interlocking technology is critical in rail operations, preventing conflicting train movements at junctions and crossings, thereby increasing both safety and efficiency.
Joanne Boocock, Digital and Integrated Systems (D&IS) Project Director at Alstom, highlighted the project’s successful completion as a significant milestone. “The successful completion of the South Kirkby resignalling project is a testament to the strong collaboration between Network Rail, Alstom and our supply chain,” she stated.
She further emphasised the project’s contribution to modernising the UK’s railway infrastructure. “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.”
The project involved the renewal of lineside equipment and the installation of new power supplies, feeder cables, and protective casings. Twenty-six new signals have been positioned to optimise train flow, improving both efficiency and capacity.
In addition to these enhancements, Network Rail teams will benefit from improved safety measures. New warning systems have been installed along the 17-mile stretch of railway, while track-locking devices will enable staff to secure sections of track for critical maintenance work.
“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,” Paul Carabine, Senior Project Engineer at Network Rail, said.
He also noted that integrating this project with other ongoing works in the area helped minimise disruption for both passengers and freight services.
The new system is compatible with the European Rail Traffic Management System (ERTMS), the UK’s future digital train control system, which is set to be introduced in the coming decades. The modern set-up is expected to reduce maintenance costs by 880 hours per year, making operations more efficient and cost-effective.
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