The UK's rail network is bracing itself for another sweltering summer as Network Rail overhauls its hot weather operating rules, developed in partnership with top British universities. Extreme heat has become a major disruptor on the railways in recent years, causing widespread delays and cancellations.
After teaming up with academic experts, Network Rail is introducing advanced modelling techniques to predict how high temperatures will impact rail infrastructure – particularly track buckling and signal failures, common causes of delays. This shift from reactive to proactive measures aims to reduce the need for blanket speed restrictions that cause lengthy journey times.
The new rules seek a more targeted approach, allowing Network Rail to intervene only where necessary, thereby minimising inconvenience to passengers. Historically, the rail network has struggled with the effects of heatwaves, which have become increasingly common due to climate change. The ageing infrastructure was not designed to cope with prolonged periods of high temperatures.
By implementing these changes ahead of the summer, Network Rail hopes to develop more resilient strategies that can keep trains running safely and on schedule even when temperatures soar. This move underscores a commitment to improving passenger experience and the overall reliability of the rail network during extreme weather conditions.