Heat Effects on Rail

[NW Mailing List]

The last few days have brought warnings of commuter trains having to 
reduce speed because of the heat effects on the rails. Are all trains 
affected? Is the condition worse with modern continuous rail or has it 
always been the case regardless of the type of rail. I would suspect so, 
but then I'm no metal expert (I would use the long word starting with 
"metal," but my speller isn't working this morning).~~Bernie Hylton
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