In message of Sun, 9
Oct 2011 09:23:56 in uk.transport.london, redcat
writes
Maybe I'm seeing this wrong, but if the relief driver is on the train
behind the one delayed in the station waiting for him how does he get
from the second train to his job in the first train? Do they link the
trains up like orbiting capsules??

White City, the station in question has 4 platforms on 2 islands.

I imagine the OP's train stopped on 3/4 and the second train on the
adjacent 3/4 platform.
--
Walter Briscoe