On Wed, 4 Aug 2010 05:25:37 -0700 (PDT)
bob wrote:
Fair point. But I'm sure they could build some sort of compromise stock
that could use the full UIC height and also width above platform level
that would still be within UK gauge below platform level. To me it just
seems daft to limit a brand new line to the UK loading gauge which is
demonstrably inadequate on all busy rail lines.

Though there really isn't very much width in the standard UK loading
gauge below platform level. For a double deck train, you're probably
talking about 1+1 or at best 2+1 seating on the lower deck, which
would probably not provide much more than single deck (without
staircases). Especially if you go for Paris RER style 3 doors per
side (so lots of staircases) stock.

Most of the internal headroom in current UK stock isn't used anyway except
by exceptionally tall people. By reducing the ceiling height and with an extra
foot of height to play with couldn't an extra floor be squeezed in?

B2003