On Tuesday, October 2, 2012 8:34:48 PM UTC+1, gordonT wrote:
Are there not a fair few stations in continental Europe which have a
"main" series of numbers for their "ordinary" platforms, say 1-14, and
have a couple of randomly chosen "high" numbers, say 41-42 for
platforms served by some oddball operation such as a tram-train run by
a different operator in an underground or semi-detached overground bit
of the station?

--
gordon

Lausanne has platforms 1..9 and 70, the only thing different about 70 is it's a bay.
I don't think I've seen a higher platform number.