On Thu, 15 Feb 2007, Paul Corfield wrote:

On Thu, 15 Feb 2007 10:21:58 +0000, Tom Anderson
wrote:

On Wed, 14 Feb 2007, Paul Corfield wrote:

On Wed, 14 Feb 2007 16:56:50 +0000, Paul Terry
wrote:

In message , Tom
Anderson writes

Then got an announcement: "this train is being held here, as there
is planned engineering work at Victoria; the engineers will be on
the line for about ten minutes".

Secondly, am i right in assuming the "planned" was a mistake?

Sounds like it: engineering work, yes, but not planned!

Planned in the sense that LU allowed them on to the tracks but not
planned in the sense of a long planned possession.

Genius! So is there also unplanned engineering work, where the navvies
just bundle past the platform staff and fix things before anyone can stop
them, then?

There was a signal failure that was traced to a problem with the cables.
In such circumstances it is essential that track staff are allowed on to
the track to investigate, identify the fault and then repair or replace
the cable. Obviously no one plans to have a failure so any requirement
for a possession to effect a repair is unplanned !

Maybe they should - then they could have all the failures at night, when
it wouldn't disrupt the service.

Hmm. Seriously, that might work. If there are known conditions that tend
to push almost-failed systems into failure, such as rapid switching, power
spikes, brownouts, vibration, etc, then it might be possible to generate
those deliberately during maintenance time to root out weedy components.
Although if this is possible, i would imagine it's already being done.

Cheers for the info once again, Mr C.

tom

--
Crazy week so far, which at one point involved spewing down the inside
of my jeans! -- D