willontrains
Member
I suppose if the fixed 10 car units need to be dispatched from midpoint then they might need a location to dispatch from - is that what’s meant by “guards office”? Perhaps @Monty or someone else could confirm.
Whilst yes on the Wimbledon side most if not all platforms would take 455/456 combinations; due to the differencing placement of the 701 rear cab doors, they overhang the platform at certain stations.Yes the suburban side can -certainly the suburban platforms have been able to accommodate 10 coach trains for a number of years as you said to accommodate the 455 ×2, 456 x1 formations.
This brings into question operations during peak hours; where the guard may not even be able to move throughout the train; meaning they could be confined to the rear cab, severely limiting the stations these new trains can safely stop at.