On Mon, 15 Jan 2007 15:37:15 -0500, David of Broadway
wrote:

sweek wrote:

The Northern Line will hopefully be split by then, the Bakerloo
extended back to Watford Junction and the old Watford station would be
closed.

Thinking like a New Yorker he

If this happens, would it be possible for Bakerloo trains to be rerouted
up the Jubilee and Met to Watford Junction and then run back into
Central London on their regular route? That might be useful to get past
a stalled train or to allow for track work.

In theory that might be possible but the main issue by then will be the
degree of interworking that will be possible post line upgrades. In the
timeframe being suggested the Jubilee Line will be operating its new
signalling system and the Bakerloo will have commenced its upgrade but
it won't be in service.

Unless Bakerloo line trains were equipped to work under the Alcatel
signalling on the Jubilee Line I can't see a normal daytime operation
being possible. Engineering hours moves may be possible but probably
only under possession conditions and therefore not suitable for your
suggestion.

Come to think of it, can trains be rerouted in this fashion anywhere
else? Aside from relatively simple cases involving the Circle line, the
only example I can think of (and I don't know if this is possible) is to
divert a Piccadilly line train from Uxbridge down the Met, around most
of the Circle via Tower Hill, through Earl's Court, and back onto the
Picc at Hammersmith. I don't think rerouting a Central line train via
the District at Mile End is possible.

I don't know whether a Picc train would fit all the way round. ISTR that
one of the early refurbished trains did make it to Moorgate sidings. I
was involved in showing round a delegation (from Moscow IIRC) and I'm
sure the display was at Moorgate. I imaging Aldgate might be a little
exciting with a train of 73 stock although the shorter track recording
vehicle (which is of tube profile) can certainly toddle along the south
side of the District. It's always fun to watch the reaction of people's
faces when such a small profile train arrives in the platform.

There is no connection between the Central Line and District Line in the
Mile End area. Not sure about what rules would apply for a Central Line
train to run in non ATO mode on a normally signalled line. There is a
link between the two lines at Ealing Broadway and via Ruislip depot onto
the Met.
--
Paul C


Admits to working for London Underground!