The region’s train system was also affected by the heat. Due to the potential for heat-related damage to the track infrastructure, trains running in the afternoon were subjected to reduced maximum speed requirements. Throughout Britain the trains were informed to stay under 90 miles per hour. And the line between London, York and Edinburgh was cut back even further to 60 mph, half its usual speed.
Where is it hot enough to melt runways right now?
Answer: In the U.K.

The U.S. isn’t the only country experiencing extreme heat right now. It got so hot in the United Kingdom on Monday that an airport runway actually melted. Passengers on an incoming flight to London Luton airport were reportedly told they were being diverted due to “bits of tarmac melting” that required repair.
The region’s train system was also affected by the heat. Due to the potential for heat-related damage to the track infrastructure, trains running in the afternoon were subjected to reduced maximum speed requirements. Throughout Britain the trains were informed to stay under 90 miles per hour. And the line between London, York and Edinburgh was cut back even further to 60 mph, half its usual speed.
Delays and cancellations inevitably ensued, and authorities encouraged people to travel only if absolutely necessary. With the high temperatures expected to continue this week, many are warning of a significant risk of breakdowns from problems like overheating engines and increased fuel consumption.
The region’s train system was also affected by the heat. Due to the potential for heat-related damage to the track infrastructure, trains running in the afternoon were subjected to reduced maximum speed requirements. Throughout Britain the trains were informed to stay under 90 miles per hour. And the line between London, York and Edinburgh was cut back even further to 60 mph, half its usual speed.