In article , Barry Salter
writes
nominally at a 30 degree angle though I believe there's one station on
the Northern Line with an incline of 23 and a bit degrees.

There are several escalators at 26 degrees 23 minutes (4 in 9 climb
instead of 1 in 2).

They are at Baker Street (2), Earl's Court (2), Embankment (4), Kilburn
Park (2), Liverpool Street (3), Maida Vale (2), Oxford Circus (3),
Paddington (2), and Warwick Avenue (2). Further details on my web site.

--
Clive D.W. Feather, writing for himself | Home:
Tel: +44 20 8371 1138 (work) | Web: http://www.davros.org
Fax: +44 870 051 9937 | Work:
Written on my laptop; please observe the Reply-To address