Network Rail engineers have been implementing preparation strategies across Scotland to address the operational challenges that a spell of hot weather can introduce to the rail network.

While the summer season brings longer days, it also introduces specific risks to railway infrastructure, such as lineside fires, track expansion, flooding, and lightning strikes. Any of these issues can lead to service disruption. To counter these threats, maintenance teams have been executing essential upgrades since March. This work includes rail stressing, painting the rails to lower track temperatures, and enhanced monitoring.

With major upcoming events like the Commonwealth Games in Glasgow and the Edinburgh Festival Fringe expected to attract millions of visitors, these preparations are vital for maintaining a safe and reliable railway.

Rail stressing serves as a primary method for protecting the infrastructure. By adjusting the rails to a specific neutral temperature, engineers enable the track to manage temperature fluctuations effectively, which minimizes the chance of buckles during heatwaves and breaks in freezing weather. In Perthshire, for instance, engineers have stressed over four miles of track. Teams there also completed extensive ballast adjustments and cleared more than 160,000 square metres of vegetation to preserve clear visibility at crossings and signals.

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Furthermore, a £1.1 million infrastructure upgrade near Glasgow Central has reinforced network resilience ahead of the summer months. This project involved replacing the points at Muirhouse Junction with more robust components designed to reduce the likelihood of mechanical failure during periods of high heat.

Across the broader Scottish network, engineering teams are undertaking a variety of targeted activities to ensure smooth operations, which include:

• Painting sections of rail white to reflect heat and help keep track temperatures lower

• Installing and monitoring remote sensors to track rail temperatures in real time

• Carrying out enhanced inspections of track, overhead lines and key assets

• Managing lineside vegetation to maintain clear visibility of signals and prevent disruption

• Maintaining drainage systems and carrying out flood resilience checks

• Protecting signalling and telecoms equipment from weather-related damage

• Increasing weather monitoring and working closely with forecasting partners to respond to changing conditions

Craig Milne, operations director at Network Rail, said: "We know summer is one of the busiest times of the year for Scotland's railway, with major events bringing more people onto the network.

"Our teams have been working hard to get everything in place ahead of the season, from targeted maintenance and inspections to using the latest technology to monitor conditions in real time.

"This is about being prepared and making sure we continue to provide a safe and reliable service, helping to keep Scotland moving throughout the summer."