"Cast_Iron" wrote in message
...

Go back to the original question, "Is this some mechanism to allow
"inter-city" trains to run from the north, right through London and
down to
the South-East."

The questioner isn't asking about current nor proposed train
services. He's
asking about mechanisms which will allow something to happen. In
this
instance the track alignments and connections will allow it to
happen,
questions of timetabling, service intervals whilst relevant in the
real
world are not applicable in the context of the question.

Learning to read, understand and then giving an accurate concise
reply to
the question really does save an awful lot of time and energy.

I'd bet the original poster just wants to know if Crossrail is likely
to result in service trains from the North to the SE rather than a
pedantic ramble about track alignments.