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Basil Jet[_2_] · May 13th 11, 12:00 PM posted to uk.transport.london

On 2011\05\13 12:54, Mizter T wrote:

"Basil Jet" wrote:

On 2011\05\13 11:43, wrote:

(Offramp) wrote:

One of the runsoff of fare evasion is that these two-step lifts are
thought necessary.

An in extremis example is at Westminster. There is no lift from the
street to the platforms; that would mean by-passing the ticket gates.
So there is a lift from the street to the ticket office level - one of
the shallowest lifts in London, I would think. It has the depth of
about a dozen steps. There is a similar sort of thing at the Borough
High St exit at London Bridge.

I suspect the Westminster height is more typical than you realise. From
street to ticket hall is a common lift requirement.

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.