How Can Data Centres Boost Rail Travel in the OT Cloud?

Operational technology (OT) and data centres are becoming core to how rail operators plan, manage and modernise networks. 

Benoît Leridon, Head of Transportation Business for Network Infrastructure at Nokia, says: “OT cloud and data centres can enhance rail safety, efficiency and predictive maintenance for the future.”

OT cloud as rail’s nerve centre

The rail industry is digitising fast, with OT emerging as the backbone for safe and reliable operations.

Technologies such as GSM-R, digital signalling, computer-based interlocking and automatic train operation are streamlining infrastructure while preparing the ground for the Future Railway Mobile Communication System (FRMCS).

Real-time software applications and operational data are now as vital as physical assets.

With cloud-native platforms, operators can analyse information, improve reliability and shift from reactive repairs to proactive, optimised maintenance.

Expanding data centre horizons

As OT applications migrate to cloud environments, mission-critical rail communications are extending into the data centre domain.

This evolution places new demands on performance, resilience and latency across data centre fabrics, the backbone for monitoring, ticketing, surveillance and signalling.

Reliability and uptime are no longer optional.

“Even the best-designed systems must be able to withstand faults, spikes in demand and application movement without compromising operations,” Benoît explains.

Consolidation and virtualisation trends

Operators are increasingly consolidating data centres into interconnected, purpose-built environments located closer to energy sources.

This lowers cooling and power costs while ensuring flexible connectivity for mainline operations.

Virtualisation plays a key role in this transition.

By running workloads on shared infrastructure, operators can optimise resources, reduce hardware requirements and accelerate new service rollouts.

Legacy applications are being replaced by modular cloud-native systems, enabling faster updates and agile maintenance.

Digital twins are gaining traction as tools for risk mitigation. They allow operators to simulate infrastructure changes, test upgrades and control deployment stages, ensuring stability while adapting to change.

Adding intelligence with AI

AI-driven predictive maintenance is emerging as a cornerstone of modern rail systems. Sensors across assets can detect anomalies, allowing interventions before issues escalate.

This reduces downtime and extends asset lifespan.

A Cyient report highlights: “AI can vastly improve efficiency, safety and reliability through predictive maintenance, optimised traffic management and better decision-making.”

Continuous monitoring and analysis further enable dynamic resource allocation and flexible application deployment.

Seamless WAN and data centre integration

Low-latency, uninterrupted services depend on integrating OT clouds with wide-area backbone networks such as IP/MPLS.

Larger but fewer data centres, unified through scalable infrastructure, now underpin IT and OT convergence.

Border Gateway Protocol (BGP) gateways often act as the bridge between systems, creating a single platform that balances flexibility, security and reach.

Nokia’s integrated approach

OT cloud and data centre integration has moved from optional to essential in rail tenders.

Nokia positions itself as a leader with secure, mission-critical WAN solutions and scalable data centre fabrics built for OT.

Benoît says: “Our Data Centre Fabric solution seamlessly connects operational technology to the cloud to help digitalise and automate railway operations.”

By focusing on interoperability, Nokia supports predictive maintenance, smarter operations and resilience across networks.

As rail operators push further into digitalisation, OT clouds and data centre integration are set to remain vital pillars of safe, efficient and future-ready infrastructure.