Rail passengers have been warned that there could be significant disruption to services in the coming days due to the heatwave.
Temperatures of up to 37C are expected in London early next week and hot weather could see track temperatures hit as high as 50C.
This puts them at risk of bending, bending and in some cases even buckling from the heat, with direct sunlight being a particular risk.
Trains are accordingly instructed to slow down to put less stress on them, but even then problems can arise.
Avanti West Coast, which operates connections between London Euston and Scotland warned passengers to plan ahead.
It could lead to short-term failures and extended travel times, it said.
The company tweeted today that weekend services on July 16 and July 17 could be canceled at short notice.
It also warned that services will be subject to changed timetables and extended travel times on July 18 and 19.
According to Network Rail, steel rails absorb heat easily and tend to hover about 20 degrees above ambient air temperature.
James Dean, Director of Network Rail’s West Coast South Line, said: “Passenger mobility is always a top priority. But we want people to be prepared.
“If rising temperatures mean we need to fit slower speeds for safety reasons, please bear with us while our engineers work to fix the issue. It may mean that some journeys take longer.
“For those who must travel by train, we would like to remind people to take some water with them to stay hydrated and always check before they travel so they know exactly what to expect.”
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https://metro.co.uk/2022/07/14/rail-passengers-warned-tracks-could-buckle-in-heatwave-with-services-cancelled-17003643/ Rail passengers warned that if services were canceled, the tracks could buckle in a heat wave