"Richard J." writes:
"Due to the mixed operation of automated and conventional trains,
which has been carried out in Nuremberg for a time, and the presence
of curved platform, platform doors are not an option for Nuremberg
metro stations."

Curved platforms at some stations on Line 1 of the Paris Métro aren't
preventing the installation of curved doors there.

Even if curved doors are significantly more expensive or something, I
don't see why they couldn't just use straight doors on a curved wall --
it would mean a very small amount of wasted space between the center of
the door and the edge of the platform, but who cares...?

-Miles

--
Run away! Run away!