"M J Forbes" wrote in message
oups.com...
The leading tripcock will only hit a trainstop if the signal is
being passed
at red, not usually done.

The rear tripcock is on the wrong side of the track to connect with
the
trainstop.

So is that to imply that there's no tripcock-equipped lines that are
signalled for bi-directional working?

If there is (on the Met), Platform 2 at Amersham and Platform 5 at
Harrow on the Hill may be bi-di. I can't be sure about Amersham, but
i've seen A stock in platform 5 at harrow (Chiltern, london bound),
when on an Aylesbury bound train in platform 6, and pretty sure that
the platform 5 train was shown as for Rickmansworth.
Also, platforms 1 & 4 at Baker Street, and I think 2 and 3 are bi-di
as well.


Or if so, is there some
technical gubbins that will lower the "wrong-direction" cocks when a
train is running wrong line?


Can't answer that one.

Matt