As extreme summer heat forces timetable changes on London's rail network, Canadian and US rail operators are watching the situation closely.
Rail passengers travelling between London and Essex face timetable changes and longer journeys as record‑breaking summer heat has affected the railway tracks.
Both Canada and the United States have seen similar heat‑induced track issues, prompting infrastructure agencies to review resilience measures. Freight trains that connect to North‑American supply chains via UK ports could feel indirect effects if disruptions persist.
c2c timetable adjustments
Passengers are being urged to check before they travel as amended timetables are introduced on c2c services from Tuesday, August 25, followed by changes to some Greater Anglia services next week.
Some journeys will take between two and eight minutes longer than usual, while departure and arrival times will also be adjusted.
The changes come as prolonged hot and dry weather, combined with low rainfall, has caused clay beneath long stretches of the railway in Essex to dry out and shrink, which has affected the condition of the track.
Speed restrictions are being introduced alongside temporary timetable changes in an effort to keep services running safely and reduce the risk of disruption at short notice.
Martin Beable, Chief Operating Officer for GBR Anglia, said: "We're taking action to keep everyone moving safely and reliably while minimising the impact on passengers. Our teams are working together across Anglia to keep running the best possible service despite the significant challenges we're facing because of this exceptionally hot and dry weather.
"We never want our customers to experience disruption, but safety will always be our priority. Thank you for bearing with us, and please do check before you travel, particularly if you're used to getting the same time train every day."
Greater Anglia service changes
Timetable changes will come into effect on the c2c route on Tuesday, August 25. Changes will then be introduced on the Greater Anglia line between Southend Victoria and London from Tuesday, September 1.
Passengers are being advised to check their specific journeys before travelling on the c2c and Greater Anglia websites.
Speed restrictions are not currently affecting the Elizabeth line, but passengers are advised to check TfL Go or the TfL website for the latest travel information before setting off.
Engineers are continuing to monitor track conditions across the region, and further speed restrictions could be introduced in the coming weeks.
Speed restrictions will need to be in place until conditions on the ground have recovered. At the moment, there is no set timeframe for how long this will take.
Network Rail is carrying out extra engineering work to protect the railway from extreme weather and the effects of climate change. The work forms part of a £2.6 billion investment in maintaining and renewing tracks, including improvements to drainage, earthworks and overhead power lines.
In Anglia, engineers are carrying out additional work this summer to limit the impact of soil drying out beneath the railway. Specialist machines known as tampers are being used to compact the stones beneath the tracks, creating a more stable foundation for trains. New ballast, the stones that sit beneath the rails and sleepers, is also being added to help raise and stabilise sections of track.
Last year, engineers used tampers on around 100 km of track in Anglia affected by dried‑out soil. Thousands of tonnes of ballast were also laid ahead of this summer, with Network Rail expecting to use 49 000 tonnes across the region during 2026.