In message
, at
23:56:45 on Mon, 27 Sep 2010, lonelytraveller
remarked:
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.

I have no idea what that is (and therefore how long that is), sorry. For
example, are we talking more or less than the distance between the
platform faces?

At the end, does it disappear to the left, or the right?

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?

Nor can I, but it was the best explanation we had, combined with a
general feeling that the expense of constructing these facilities
usually means there's a good reason for everything (even if we don't
immediately know what it is).

However, we now seem to have cleared up the confusion between "facing
the opposite way", and "turning round" (which at first sight are the
same activity)... and therefore the new passage would seem to head east
and not west. That is much more consistent with being a link to the
other new lifts which are on the reconstructed Pentonville Road passage,
and (if they also have a "secret doorway") would link all three of the
new deep lifts together for emergency purposes.
--
Roland Perry