In article , BH Williams
writes
The
access to North Pole seems indirect, but this is presumably to allow use of
the existing carriage line flyover towards the Relief lines, rather than
having a direct access to the Down Main, which would mean all light engine
workings etc having to cross the Up Main on the flat.

That's not what I mean. The plan shows an access from the Down Main at
Portobello Junction, but any train making that access will have to run
half way to the flyover, shunt backwards into a headshunt, then run
forwards into the depot. One additional crossover anywhere between
Portobello and the flyover would make things a lot simpler.

Obviously you want access off the flyover, and that will require use of
the headshunt. But why force the double reverse on anything coming out
of the south side of Paddy?

--
Clive D.W. Feather | Home:
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