Peter Masson wrote:
"Roland Perry" wrote in message
...
In message , at 10:48:31 on
Thu, 15 Jan 2009, Peter Masson remarked:
So there might be a case for diverting HEx (in tunnel, not wandering
all round Cricklewood) to St Pancras.

Would this be a new station at St Pancras, or maybe sharing the Kent
domestic platforms, which might be over-specified. On the other
hand, if Thameslink2012 does in fact include through-running from
the GN services on the ECML, there will greater spare capacity at KX.

I envisage an underground terminus, possibly double ended, with one
entrance from the concourse at St Pancras (near the access to the
Thameslink platforms, and another with an entrance from Euston (may
need a travelator).

It makes more sense to extend the Kent domestics from St P to Heathrow, with
a reversal at St P.

"John Rowland" wrote in
message
Peter Masson wrote:
"Roland Perry" wrote in message
...
In message , at 10:48:31 on
Thu, 15 Jan 2009, Peter Masson remarked:
So there might be a case for diverting HEx (in tunnel, not
wandering all round Cricklewood) to St Pancras.

Would this be a new station at St Pancras, or maybe sharing the Kent
domestic platforms, which might be over-specified. On the other
hand, if Thameslink2012 does in fact include through-running from
the GN services on the ECML, there will greater spare capacity at
KX.

I envisage an underground terminus, possibly double ended, with one
entrance from the concourse at St Pancras (near the access to the
Thameslink platforms, and another with an entrance from Euston (may
need a travelator).

It makes more sense to extend the Kent domestics from St P to
Heathrow, with a reversal at St P.

But as I understand it, Heathrow Hub is just the first station on HS2,
en-route to the midlands or the west, not a terminus. I doubt that the
current St P has enough domestic platforms (on either side) to be the
London Terminus for the high speed link to the north. Also, are they
long enough?

In message , at 13:51:50 on
Thu, 15 Jan 2009, Recliner remarked:
I doubt that the current St P has enough domestic platforms (on either
side) to be the London Terminus for the high speed link to the north.
Also, are they long enough?

Not enough of them, and they are approx 10 carriages long - is that
sufficient?
--
Roland Perry

"Roland Perry" wrote in message

In message , at 13:51:50 on
Thu, 15 Jan 2009, Recliner remarked:
I doubt that the current St P has enough domestic platforms (on
either side) to be the London Terminus for the high speed link to
the north. Also, are they long enough?

Not enough of them, and they are approx 10 carriages long - is that
sufficient?

I would have thought new high speed trains would be longer than that
(even the Pendos will soon be 11 cars long).

In message , at 16:34:39 on
Thu, 15 Jan 2009, Recliner remarked:
I doubt that the current St P has enough domestic platforms (on
either side) to be the London Terminus for the high speed link to
the north. Also, are they long enough?

Not enough of them, and they are approx 10 carriages long - is that
sufficient?

I would have thought new high speed trains would be longer than that
(even the Pendos will soon be 11 cars long).

It would be awkward if the Javelins were longer.
--
Roland Perry

"Roland Perry" wrote in message

In message , at 16:34:39 on
Thu, 15 Jan 2009, Recliner remarked:
I doubt that the current St P has enough domestic platforms (on
either side) to be the London Terminus for the high speed link to
the north. Also, are they long enough?

Not enough of them, and they are approx 10 carriages long - is that
sufficient?

I would have thought new high speed trains would be longer than that
(even the Pendos will soon be 11 cars long).

It would be awkward if the Javelins were longer.

The Class 395 trains are six cars long, but I don't know if they'll be
running doubled up for some services. If so, I assume the Kent platforms
can handle 12 trains.

"Recliner" wrote

The Class 395 trains are six cars long, but I don't know if they'll be
running doubled up for some services. If so, I assume the Kent platforms
can handle 12 trains.

AIUI the peak trains will be 12 cars, apart from the Rochester - St Pancras
service which will be a single unit because of short platforms. The trains
via Ashford will consist of separate portions from Thanet via Canterbury
West and Dover, joining at Ashford.

Peter