In article , (Roland
Perry) wrote:

In message , at 13:00:34
on Fri, 13 May 2011, Basil Jet
remarked:
If the lift had doors on two sides and sensors to detect people
within, a single lift could link the street, the ticket hall and the
platforms without compromising the barrier line.

With doors opening alternate sides I suppose.

The lift would have two modes, streetside and airside, and could only
switch between the two when empty. On the ticket hall level the mode
would control which of the two doors opened.

And I predict it would spend most of its time full of people
wanting the opposite mode to that which it was currently
performing, and refusing to get out.

Never mind all the operating complexity, just think where the lifts go.
Those in Westminster are some way apart.

--
Colin Rosenstiel

On May 14, 1:44*am, wrote:

In article ,
(Roland Perry) wrote:

Never mind all the operating complexity, just think where the lifts go.
Those in Westminster are some way apart.

They should of course be designed to surface just behind the Speaker's
chair.