Richard J. wrote:
Paul Terry wrote:

In message , Brian Watson
writes


Just heard on BBC London this morning that service is still
suspended.

:-(

According to TfL this is now due to signalling problems affecting
the entire Northern line.


LU have been blaming the tripcock problem on the "signalling system"
from the start.

You seem to be implying this is in accurate. I would say that the
tripcock system is part of the signalling system just as much as any set
of lights, cables or signalboxes (or whatever LU call them). Just
because this part of the system is train and not track mounted, doesn't
make it any less part of the signalling system.

Robin