On 2010-09-30 21:16:45 +0100, Walter Briscoe said:

In message
s.com of Thu, 30 Sep 2010 07:37:36 in uk.transport.london, Offramp
writes
Two unusual things about Stockwell.
1 The stairs at the headwall of the northbound Northern Line are Keep
Right. Most stairways I know on the Underground are Keep Left.

AFAIR, at Baker Street, the stairs from the Metropolitan platforms (1-4)
to the Metropolitan ticket hall are "Keep Right". I've never been able
to make sense of this instruction as they have central handrails. So, do
they mean keep right of the handrail (giving 2 paths) or are there 2 up
and 2 down paths? The member of staff, I once asked, did not know.

The stairway and corridor from the low-numbers platforms at Liverpool
St. to the Central Line ticket office are marked Keep Right at one end
and Keep Left at the other.

Now that really is confusing.