Can Great British Railways survive a heatwave?

It is an important milestone for Labour's plans to bring Britain's railways under public ownership, and the first visible sign of what Great British Railways will become.

The timing is uniquely challenging.

As the new railway prepares to welcome its first passengers, this week's heatwave has provided an early reminder of the long journey ahead. Passengers have been advised not to travel unless absolutely necessary, as soaring temperatures are forcing speed restrictions, cancellations, and amended timetables across parts of the network. For a country that wants rail to be the backbone of its transport system, that's a striking message, but not an unexpected one.

Britain's railways are among the busiest in Europe, with little spare capacity when disruption occurs. Much of the network was built for a cooler climate, so periods of extreme heat can quickly impact services across the country. Great British Railways will inherit responsibility for making that network more resilient. Meeting that challenge will depend, in part, on more than £43 billion in funding through Network Rail's current five-year investment programme. Those long-term investments are essential as the railway adapts to more frequent periods of extreme heat.

But for passengers caught up in this week's disruption, the priority is much more immediate. Can they still get to their destination? Is there another route? Do they need to buy a new ticket? Those moments shape whether people trust the railway enough to choose it again.

For many passengers, the railway now begins long before they arrive at the station. It starts when they search for a journey, receive disruption alerts or look for an alternative route on their phone.

Omio's own data shows how quickly disruption changes behaviour, with train booking cancellations rising by up to 20% across the UK during the heatwave. That increase reflects how quickly passengers need to make new decisions when services are disrupted, and how important it is that they can easily understand their options.

Great British Railways has an opportunity to make those decisions easier. Giving passengers access to clear information, consistent disruption data, and straightforward alternatives will become an increasingly important part of building trust in the railway.

That depends on making live operational and disruption data available across the wider travel ecosystem. Millions of passengers already book through third-party platforms, and those companies can only help customers replan their journeys if they have access to the same real-time information as the railway itself. Great British Railways has an opportunity to make that the standard, ensuring every retailer and travel platform can give passengers consistent, up-to-date information and practical alternatives when disruption occurs.

Cambridge South marks the beginning of a new chapter for Britain's railways. This week's heatwave has also highlighted where the biggest opportunity lies: building a railway in which resilient infrastructure, connected data, and better passenger information work together to help people complete their journeys with confidence.

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Jean-François Bessiron, Chief Commercial Officer at Omio, the world’s leading multimodal travel platform

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