[Mark Gleeson]

Originally Posted by philip

16 degrees seems a lot lower than the 27 (mean sumer temperature) degrees the UK uses?

There are careful rules about how the rail is laid and the temperature on the day it is laid of critical importance

Above 27 degrees the UK rail network collapses as the rails are outside there temperature range and risk buckling, its the critcal temperature, the air temp might be 27 but the rail would be close to 50 degress, blanket speed limits appear

The issue is with defective sleeper blocks these stresses are unrestained