On 29 Jan, 16:00, D7666 wrote:
If I may return to this thread ...

http://groups.google.com/group/uk.tr...se_thread/thre...

... and LT/LU use or not of Up and Down, there is one current
(deliberate pun) LU location that today uses those terms.

It might be the ''exception to prove the rule'' so beloved of this
forum.

At Baker Street Metropolitan line there are trackside DC traction
section switches marked ''NEG 66A Up Loop'' and ''POS 66 Up Loop''.
These cab clearly be seen on the east side of the track at the north
end of Platform 4, just beyond the former signal cabin. They look like
old enamel signs but are definitely still in use. Did not really
notice them before, since the northward extension of Baker Street for
S8 stock if you sit in the extreme front of a train you are more or
less right next to this signage.

I'm not a surfaces lines person so I don't know the correct
designation of the ''loop'' track, it might not be called that today
by signallers, signals engineers, track people, or the operators.
Nevertheless ''Up'' appears on the traction switches and usually these
things are exactly correct because of the safety need for correct
identification.

--
Nick

When I worked at Baker St, we always referred to the tracks as "up" or
"down", even on the Circle. Platform 5 was "up" and Platform 6 "down".