In a statement, the company warned of delays, cancellations, and last-minute changes to train services on Monday and Tuesday. It also closed the entire East Coast Main Line, which runs between London’s King’s Cross Station and York and Leeds, for Tuesday afternoon.
“Closing the line to traffic is always a last resort but it is the right thing to do to keep people safe on Tuesday given the unprecedented heatwave forecast,” Sam MacDougall, the operations director for Network Rail, said in a statement. “The forecast temperatures are well above those which our infrastructure is designed, and safety must come first.”
The trains’ speed was also being limited on Monday, a move that would limit the number of trains running and extend journey times significantly, Mr. MacDougall said, urging passengers to “only travel if absolutely necessary.”