Ireland’s Rail Revolution: €100M Upgrade

Ireland, May 19, 2025

A landmark development in Ireland’s transport sector is set to unfold as Siemens Mobility and Iarnród Éireann (Irish Rail) embark on a transformative, multi-decade partnership. This strategic framework agreement, valued at over €100 million ($111.6 million), signifies a pivotal moment for the nation’s railway infrastructure. The core objective is the comprehensive modernization of Ireland’s signalling and train control systems, many of which date back to the 1980s. Central to this ambitious undertaking is the nationwide deployment of Siemens’ state-of-the-art Trackguard Westlock Computer-Based Interlocking (CBI) system. This initiative promises not only to replace outdated technology but also to lay a robust foundation for a safer, more reliable, and efficient rail network, capable of supporting Ireland’s future transport demands, including ambitious decarbonization targets and enhanced connectivity for both passenger and freight services across the island.

A Strategic Alliance Forged for Modernisation

The recently announced long-term framework between Siemens Mobility and Iarnród Éireann builds upon a rich history of collaboration, with Siemens having contributed to Ireland’s infrastructure for over a century. This new agreement, however, marks a significant escalation in their joint efforts, specifically targeting the critical backbone of railway operations: its signalling and control systems. The imperative for this upgrade is clear; existing systems, largely reliant on technology from the 1980s, are increasingly challenging to maintain and fall short of the capabilities required for a modern, expanding railway. As Éamonn Ballance, Iarnród Éireann’s Infrastructure Director, articulated, “As we work to expand our network and services, to ensure rail is the backbone of Ireland’s sustainable transport network, we will work with partners such as Siemens who share our vision of a safe, sustainable, quality rail service for our passenger and freight customers.” This partnership is thus intrinsically linked to Ireland’s broader national development goals, ensuring the railway can meet future capacity and sustainability demands.

Trackguard Westlock: The Technological Heart of the Upgrade

At the core of this extensive modernisation programme is the Siemens Trackguard Westlock Computer-Based Interlocking (CBI) system. A CBI system is a sophisticated, processor-based signalling solution that forms the safety-critical brain of railway operations. It continuously processes real-time data regarding train locations, the status of tracks, and operator commands to manage train movements by controlling signals and points (track switches). The Trackguard Westlock system offers numerous advantages over legacy relay-based or mechanical interlocking systems. Its inherent design provides enhanced safety integrity levels, significantly reducing the risk of human error and preventing conflicting train movements. Furthermore, its digital nature translates into greater reliability, reduced maintenance requirements, and improved diagnostic capabilities, leading to fewer service disruptions and enhanced punctuality for both passenger and freight traffic. The system’s architecture also allows for greater operational flexibility and can facilitate increased line capacity by optimizing train routing and potentially reducing headways between services.

Phased Implementation and Network-Wide Transformation

The deployment of the Trackguard Westlock system will be a carefully managed, phased process, commencing in the strategically vital Dublin area. From this initial hub, the new technology will be progressively rolled out across the entire national rail network, with full implementation anticipated by 2040. All operations will be managed from the National Train Control Centre located in Dublin, which will serve as the central nervous system for the modernized network. This long-term rollout underscores the complexity and scale of replacing and upgrading critical infrastructure across a live railway environment. The meticulous planning aims to minimize disruption to ongoing services while ensuring a seamless transition to the new system. Rob Morris, Managing Director and Joint CEO for Rail Infrastructure and Software at Siemens Mobility UK & Ireland, highlighted the transformative potential, stating, “I’m delighted that our century-long legacy will continue in Ireland as we embark on this journey to transform rail travel and transport.” This transformation will involve not just technological replacement but also a paradigm shift in how rail traffic is managed and monitored.

Paving the Way for Decarbonisation and Expansion

This comprehensive signalling upgrade is more than just a technological refresh; it is a foundational enabler for Iarnród Éireann’s ambitious future. The improved control, capacity, and reliability afforded by the Trackguard Westlock system are critical prerequisites for realizing Ireland’s decarbonisation goals within the transport sector. Modern signalling is essential for efficiently managing electrified lines and integrating new, potentially greener, rolling stock. Moreover, the initiative directly supports the expansive visions outlined in strategic plans such as the All-Island Strategic Rail Review. As Mr. Ballance noted, “The ambitions set out under our existing investment programme and the All-Island Strategic Rail Review are moving from planning to delivery stage, and we look forward to working with Siemens to deliver these crucial modernising works.” The enhanced network capacity and operational efficiency delivered by the new CBI system will be instrumental in accommodating increased service frequencies and potential route expansions, crucial for making rail a more attractive and sustainable transport alternative.

Conclusion: Securing Ireland’s Rail Future

The strategic partnership between Siemens Mobility and Iarnród Éireann, cemented by the €100 million-plus investment over the next two decades, represents a watershed moment for the Irish railway network. The nationwide implementation of the Siemens Trackguard Westlock Computer-Based Interlocking system is not merely an upgrade of outdated components but a fundamental re-engineering of the network’s operational core. This transition from 1980s-era technology to a state-of-the-art, digitally controlled infrastructure promises a significant uplift in safety standards, service reliability, and overall operational efficiency. For passengers and freight customers, this translates into more punctual services, fewer disruptions, and a rail system better equipped to handle growing demand.

Beyond the immediate operational benefits, this modernisation programme is a critical enabler for Ireland’s long-term strategic objectives. It provides the technological backbone necessary to support the ambitious goals of decarbonisation, allowing for the more effective integration of electrified services and sustainable technologies. Furthermore, it aligns perfectly with the vision articulated in the All-Island Strategic Rail Review, creating the capacity and resilience needed for future network expansion and enhanced connectivity. The move from planning to delivery, as highlighted by Iarnród Éireann, signals a proactive commitment to future-proofing Ireland’s rail infrastructure. This comprehensive signalling renewal project is, therefore, an investment in a sustainable, efficient, and modern railway, poised to play an increasingly vital role in Ireland’s transport landscape for decades to come, ensuring that rail truly becomes the backbone of the nation’s sustainable transport network.

Company Summaries:

• Siemens Mobility: A separately managed company of Siemens AG, Siemens Mobility has been a leader in transport solutions for over 175 years. The company constantly innovates its portfolio in its core areas of rolling stock, rail automation and electrification, turnkey systems, intelligent traffic systems and related services. With digitalization, Siemens Mobility is enabling mobility operators worldwide to make infrastructure intelligent, increase value sustainably over the entire lifecycle, enhance passenger experience and guarantee availability.
• Iarnród Éireann (Irish Rail): The national railway operator of the Republic of Ireland, Iarnród Éireann provides passenger and freight rail services across its network. It is responsible for the operation, maintenance, and development of the Irish rail infrastructure. The company is a subsidiary of Córas Iompair Éireann (CIÉ), Ireland’s state-owned public transport provider, and plays a crucial role in the country’s public transportation system.