On Jan 26, 4:32*pm, "Paul Scott"
wrote:

In fact, ECS movements are not that significant - as the vast majority of
the fleet are stabled elsewhere overnight. *There are only half a dozen
departures from Northam for the morning peak, and four are local.
Southampton Central (x2), Parkway, Eastleigh/Winchester (splits).
Basingstoke and West Byfleet are the exceptions. *In the afternoon there are
departures to Havant, Fareham and Basingstoke.

So it would seem that the overall fleet diagramming copes with the location
quite efficiently.

Yes ... at Northam ... my point is if BOMO were used instead, that
half a dozen trains is ~a dozen untis all racking up an extra ~60
miles per day, thats 700+ miles per day, 5 days a week, ~50 weeks a
year allowing public holidays, is 180,000 extra unit miles - which
over a 10 year franchise is then 1.8 million miles. Then it'll be at
least 1/2 an hour on every train crew diagram, the a.m. turn will be a
different crew to the p.m. crew. And that half hour is earlier a.m.
dep. and later p.m. arr., al adding up to 1 hour less on depot, etc
etc.


I make it Northam currently berths 14 units overnight, Branksome 19.

Unknown quantity of 444/450 at Northam on heavy exams not presented
for traffic , lets say 1 x 444 and 3 x 450 ???

In 2004 (because the data is on hand) i.e. before 442 changes, and it
was an actual depot full maintenance and running depot BOMO berthed 22
units for traffic (not all 444, some were Cig but that is irrelevant
they'd be replaced by 450) plus minimum 1 x 442 not for traffic under
maintenance.

I would suggest BOMO would not have had the space to have gone from 23
to 41 units along with all the space for Siemens workshops and stores
and so on.

--
Nick