On 27 Sep, 21:34, Roland Perry wrote:
That's plausible, but why is it tiled and lit like a public area,
rather than a rough finish like an emergency access passage?
I don't know. How long is the passage? I've asked some other questions,
tacked onto your initial posting.
The visible part is about as long as the eastern northern line
concourse.

Also, what would be the point of a passage connecting two lift shafts
together, when its already fairly easy to get between the lifts at
platform level, and surface level?
Perhaps one or other of the (upper/lower) access points to the emergency
lift will be obscured by some other of the current works. Although one
might imagine that the new public lift could entirely obsolete the
emergency one.
I still can't see why going up one lift half way, along a passage, and
then up the other lift, would ever be better than just going all the
way up one of the lifts?

Next time you're there, take the lift. If you go in from the
platforms, face the opposite way, if you go in from the ticket hall,
turn round and face the doors you came in through.
That suggests you need to "about-face" whichever end of the lift you
entered. So are these three doors all facing the same way, just at
different heights?
No. If you go in from the platforms, face the opposite way from the
door you came in through. If you go in from the ticket hall, turn
round and face the SAME way as the door you came in through.