"Colin" wrote in message
...

"Dave Arquati" wrote in message
...

As for Wapping, the expense of extending the platforms could jeopardise
the whole of Phase 2; I wonder whether TfL would rather try to negotiate
with the HMRI or whoever to allow long trains to serve the short
platforms
there ("For Wapping, use front 4 cars only").


This working practice is widely in use on the mainline railway, even more
so
here on SWT now the new Desiros are in operation (e.g. Kew Bridgew,
Isleworth).

The difference on the mainline is that you can walk between carriages if
you
find yourself in the wrong half of the train. This cannot be done safely
on
current tube stock, and often tube trains are too packed to be able to
walk
through anyway.


Isn't the ELLX going to use networkers? Surely that would solve the problem,
if the trains could be stopped with the middle four carriages in platform
and announcements made clearly in about three different forms (e.g. on
in-carriage line maps, on the tube maps, before the train leaves Canada
Water or Shadwell).

Jonn