In article , Dave Arquati
writes
(I'm presuming all the other 'deep tube' lines are indeed, somewhere
deeper at this point - it must be quite a job for someone just keeping
accurate tabs on what, exactly, is all down there, and where exactly
they all are!)

Some of them aren't that deep. Victoria is closest to the surface,
Piccadilly is just underneath, and Northern is just underneath that.
However, all of them are over to the eastern side of the overground
station and the tube ticket hall.

At King's Cross, the depths of the platforms below the tube ticket hall
a
* Northern 22.86m
* Piccadilly 17.22m
* Victoria 11.67m
I would guess that the booking hall is another 5m or so below ground
level, but I don't have definitive figures.

At Euston, the southbound platform is 23.38m below the booking hall, and
the northbound 23.56m. That hall is deeper than the KXSP one, or at
least it feels that way.

For example, taking the tube from Marylebone to Baker Street and
changing to a subsurface line (takes longer than just walking to Baker
St!). Escalators aren't very quick unless you walk up and down them...

The normal speed is 369mm (vertical) per second. The Marylebone ones are
21.58m, making 58.5 seconds (plus a bit more for the level bits at each
end; call it a minute).

--
Clive D.W. Feather | Home:
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