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‘The US Is Not Prepared': Hot Temperatures Stress Rail Systems

July 21, 2022, 8:00 AM

With temperatures soaring beyond 40°C (100°F) in the United Kingdom and in the United States, civil engineers and transit authorities say the heat is threatening rail networks across both countries.

Officials with London’s subway mandated temporary speed limits and preemptively canceled services on parts of the city’s tube system earlier this week over fears that the rails could bend or buckle. Across the pond, Amtrak imposed “heat-related” speed restrictions within its Northeast Corridor service between New York and Philadelphia earlier this month.

Heat restrictions on railways are not unusual, and the US Department of Transportation maintains that the country’s ...