On 27/07/2011 17:16, Martin L wrote:
On Jul 27, 2:04 pm, wrote:
On Wed, 27 Jul 2011 04:36:48 -0700 (PDT)

wrote:
If we're talking about LU, then what about Oxford Circus to Tottenham
Court Road, eastbound?

No, the Central Rises as it enters stations, then descends leaving
them. It was built this way in order to aid acceleration and
braking. The stations, in effect, are at the top of "underground
hills"

Why isn't this done any more - eg jubilee, victoria lines? It seems to be a
simple way to save energy.

My memory of using the Victoria Line regularly (admittedly quite a
long time ago) is that most stations on the line do conform to this
system, but that there are exceptions - in particular where the
constraints of providing cross-platform interchange and/or crossing
over/under other lines made it tricky.

Martin L

Except on the southbound track on the Victoria line at KXSP, where the
train comes off a great big hill just before it enters the station. The
same goes for the Piccadilly.