On 16/05/2012 22:52, Steve Fitzgerald wrote:
In message , "
writes

I believe it will be used to provide an escalator link down to
Crossrail as well as provide a much larger circulation area for
passengers.

The two current tracks are in their final positions, it will be the
maximum size island platform that the space between the outer brick
walls of the cutting will allow.

Paul S



I also notice that they have converted the signals in that area from
automatic to semi-automatic, or floodgate signals, as they are called
on the Northern Line. Why is that?

Not floodgate signals at all. Semi-automatic (controlled) signals which
are to be treated as automatic in certain circumstances. When the points
are proved secured, the signal cabin can be put into King (the King
lever is thrown) and worked as through running.

Just going on what they call them on the Northern Line, though yes, they
are semi-automatic. The illuminated A under the signal itself indicates
that they are in automatic mode.