On Sat, 15 Dec 2007, lonelytraveller wrote:

To the south would be so far away from the other exits and entrances
that it would be ridiculous connecting to it,

Wouldn't it be as close to the 1960s ticket hall as the Victoria platforms
are, and right under the Circle platforms? It would also be in roughly the
right place to inherit the KX Thameslink exit onto Pentonville Road, no?

If it was right under the circle platforms, then it would probably be in
the same place as the victoria line running tunnels just before the
platforms.

The Victoria platforms are two level above the Northern ones; do the
tunnels dive so quickly to the west that there isn't room for a set of
platforms next to the Northern line? I'd be surprised if that was true.

I'm working from John Rowland's collection of maps he

http://www.geocities.com/Athens/Acro...9/ltkxgrey.gif
http://www.geocities.com/Athens/Acro...9/ltkxplan.gif
http://www.geocities.com/Athens/Acro...69/ltkxiso.gif

It would have to either be further south, or very very deep, either way
making escalator access very awkward.

I don't think it's as bad as that. Although the presence of the Victoria
line does make plumbing escalators in a bit difficult.

KX Thameslink is far to the south east of the other platforms;

Well, east, anyway. The station building is 150-odd metres east of the
junction of York Road and Euston Road; that junction is very roughly the
eastern end of the Northern line platforms, and the western end of the
Victoria platforms.

anything in the right place for that wouldn't be very convenient for
anything else, unless (again) it was very very deep, so that escalators
at either end could stretch far enough to reach the rest of the tube
platforms as well as KX thameslink.

If the Chelsea-Hackney platforms were to the east, like the Victoria
platforms, a link to the old Thameslink station at their eastern end would
be quite plausible. You'd have a link to the 1960s ticket hall, and
perhaps the Circle platforms, at the western end. You might also manage a
link to the Victoria or Piccadilly platforms at that end - indeed, the
only way to get to the ticket hall might be a link up to the Victoria
concourse, and then up the existing Victoria escalators.

You might even manage a link from the Victoria to the Thameslink station.
Isn't there something like this at the moment?

tom

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The major advances in civilization are processes that all but wreck the
societies in which they occur. -- Alfred North Whitehead