On Sat, 24 Nov 2007 13:37:40 -0000, "John Rowland"
wrote:

AFIAK, U-bahns are controlled by the city government and S-bahns are
controlled by the federal government, and there is no particular reason why
an entire U-line couldn't be overground or an entire S-line be underground,
although the latter is particularly unlikely.

Oh, I don't think there's anything that says you can't, just as
there's nothing saying you can't have a LUL line mostly not
underground!

Neil

--
Neil Williams
Put my first name before the at to reply.