On Wed, 27 Jul 2011 04:36:48 -0700 (PDT)
1506 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.

B2003