Basil Jet wrote:
On 2015\11\22 21:53, Paul Corfield wrote:
On Sun, 22 Nov 2015 16:35:54 -0000 (UTC), Recliner
wrote:

wrote:
I wonder if they plan to do a mock up anywhere in town.


http://www.gizmodo.co.uk/2015/11/her...g-as-standard/


Do we know why the initial TfL Rail sets for the Liverpool Street to
Shenfield service will only be seven-car? Are there some current platform
length restrictions?

As a follow up to my other post I have subsequently found this on the
web.

"2.4.4 Following the introduction of Crossrail services, the number of
platforms at London Liverpool Street station will reduce from 18 to
17. This is to enable platforms 16 and 17 to be lengthened to
accommodate Crossrail trains; platform 18 will be taken out of
commission."


Maybe I'm being really thick, but I see no reason why the trains running
through Liverpool Street deep have to fit in Liverpool Street surface.
Certainly not if they have to lose a platform to do it.

The new trains will be running into Liverpool St surface platforms before
the tunnel opens, hence the need for the initial batch to be shorter to
fit.

Even after the tunnel opens, some Crossrail trains will serve the surface
platforms, hence the need to lengthen (some of) the surface platforms. But
fewer surface platforms will be needed when most of the Shenfield trains
will be using the tunnel.