On 7 Feb, 20:46, Roland Perry wrote:
Thanks. That shows the arrangement very well. Doesn't explain the
closure of the passage as being necessary to build the lift, though;
even if the passage is eventually blocked off because of the new exit to
the plaza.

Even if the lift isn't itself in the corridor, the builders still need
a way to access the site and to get the spoil out. Closing the
passageway means they can come in from the north without otherwise
interrupting passenger flow.

U