"InMyTree" wrote in message
...

But tell me how in a place like Switzerland, which is regularly over 30 in
Summer, and regularly under snow in the winter can run their trains on time
every time all the time?

That is exactly my question. I appreciate that track can be pre-tensioned
at a level to suit the generally expected extremes in a country, but Britain
hardly has an extreme temperature range compared to other parts of Europe.

Col
--
Bolton, Lancashire.
160m asl.
http://www.reddwarfer.btinternet.co.uk