"Mark Townend" wrote in message
...
"John Rowland" wrote in message
...
"CJC" wrote in message
om...

Kennington Charing Cross branch.

Isn't there a loop at kennington?

Yes. So? The train still has to be cleared with the following train
queueing
behind it, just as it would at Paddington Crossrail

LUL trains don't have an enclosed gangway between their very closely
coupled
cars, and significant gaps can open up between them on sharp curves
through
which a human could fall, the major factor in how the unfortunate
gentleman
at Liverpool Street met his end. Modern mainline rolling stock by
contrast
has enclosed corridor connections, so it can be made nearly impossible
for
someone to fall out of a moving train (certainly no more in a siding move
than anywhere in normal passenger service). As long as such standards are
followed , and the move to a reversing siding is protected to full
passenger
signalling standards (TCs clear, FPLs bolted, flank traps and forward
train
protection proved in place) then I can see no reason a case couldn't be
made
not to fully check the train before proceding, as long as a walk through
is
carried out once berthed in the siding and a safe procedure for removing
people found is in place.

This seems to be the case already on the DLR. The end doors need a key to
open them from the inside, so the passenger area is secure. I didn't
notice any walk-through before the doors were closed at Bank yesterday and
the train departed for the siding.

However, with large numbers of foreign visitors likely to use Crossrail to
get to Heathrow, reliance on a PA announcement would not be sufficient to
dislodge everyone. They will need extra platform staff at Paddington IMO.
--
Richard J.
(to e-mail me, swap uk and yon in address)