On Jun 15, 11:18*pm, Neil Williams wrote:

On Tue, 15 Jun 2010 13:14:30 -0700 (PDT), Andy
wrote:

Except for the extra Crossrail rolling stock needed to run the extra
twelve(ish) miles in each direction.

Offset by the EMUs not required to run the normal local service. If
they have any sense the Crossrail tunnel will be full size and any
EMU will fit - one would hope.

The Crossrail tunnels are going to be 'full size' - 6 metres in
diameter, with space for the OHLE too. However 'any old EMU' won't be
up to the job of a 24tph service in the core section - the trains will
be ATO in this bit, and they'll also need to be designed to cater for
the expected crowds (wide doors, suitable interior etc).