In message , David Splett
writes
By having all the units facing the right way (I've no idea if this is
the plan - Steve?!)

Yes, hence the occasional use of the loop on 7 January despite T4 being
closed.

The notice we have states that the Line Controller will arrange for
trains requiring to be turned to go round the loop.
--
Steve Fitzgerald has now left the building.
You will find him in London's Docklands, E16, UK
(please use the reply to address for email)