Old Oak Common mega interchange
 

On 20 Mar, 23:03, kev wrote:
Just noticed this submission to HS2 by Parsons Brinckerhoff:
http://www.dft.gov.uk/pgr/rail/pi/hi...stakeholdersub...
see the diagrams and plans on pages 9, 10 and 20 in particular.

As well as a low level Crossrail/Great Western/HS2 station, they
suggest a high level station with:

*four West Coast Main Line platforms (for services either terminating
or going onto the West London Line)
*two Dudding Hill line platforms (so services could be run onto the
Chiltern and Midland Main lines)
*two North London Line platforms (effectively bays facing the Richmond
direction)
*two West London Line platforms

I like this proposal better - it actually links the station up to
nearby lines instead of ignoring them.

But I don't see why the design needs to be on such a huge scale. Its
basically just another willesden junction, a junction between two rail
routes, in the middle of nowhere, but with twice as many lines
stopping at it, but the design seems to be for a major-central-london-
terminus-style station.

Old Oak Common mega interchange
 

On 18/03/10 16:25, kev wrote:
It would also only be one stop from Old Oak interchange to Willesden
Junction, for the Bakerloo and West Coast Main Line.

It's less than half a mile from OOC to Willesden Junction. It ought to
be possible to arrange a proper interchange without needing to catch a
train between the two.

Roger

Old Oak Common mega interchange
 

"Roger Lynn" wrote in message
...
On 18/03/10 16:25, kev wrote:
It would also only be one stop from Old Oak interchange to Willesden
Junction, for the Bakerloo and West Coast Main Line.

It's less than half a mile from OOC to Willesden Junction. It ought to
be possible to arrange a proper interchange without needing to catch a
train between the two.

Depending on relative orientations, and considering that the HS2 platforms
cover a quarter of a mile walk anyway, a randomly arranged collection of
underground passageways, escalators, lifts and ticket halls could easily
hide the walk. Just like KX/St P... :-)

Paul S

Old Oak Common mega interchange
 

In article ,
Bruce wrote:

On Thu, 18 Mar 2010 11:39:30 -0700 (PDT), amogles
wrote:
On 18 Mrz., 19:36, Bruce wrote:
2. *

If OOC is going to include interchanges with all those lines, there's
precious little point going on to Euston where interchange
opportunities will be far fewer. *That will also save the not
inconsiderable cost of rebuilding Euston.- Zitierten Text ausblenden -


Can't do that. The propylaeum would look entirely out of place at Old
Oak Common :-)


Perhaps a scale model?

Um... 18", anyone?

Sam

Old Oak Common mega interchange
 

On Mar 18, 11:36*am, Bruce wrote:

I think it's an excellent idea. *In fact it is such a good idea that
OldOakCommon (OOC) should be the terminus of High Speed 2. *


Pardon my asking a naive question:

would it be technically feasible to split a Southbound HS train at
OOC with half going East to Euston and the other half going West
to somewhere near Heathrow? Without causing material delays?

Presumably such a feature/arrangement would have to be designed in
from the start.

Old Oak Common mega interchange
 

On Mon, Mar 22, 2010 at 04:06:36PM -0700, Mis wrote:

would it be technically feasible to split a Southbound HS train at
OOC with half going East to Euston and the other half going West
to somewhere near Heathrow? Without causing material delays?

Presumably such a feature/arrangement would have to be designed in
from the start.

No doubt it would be possible. But splitting takes time. And of course
you'd also need to combine north-bound trains, and joining trains
together generally takes more time, and is a great recipe for delays.

--
David Cantrell | semi-evolved ape-thing

You can't spell "slaughter" without "laughter"

Old Oak Common mega interchange
 

On Mon, 22 Mar 2010 16:06:36 -0700 (PDT), Mis
wrote:

On Mar 18, 11:36*am, Bruce wrote:

I think it's an excellent idea. *In fact it is such a good idea that
OldOakCommon (OOC) should be the terminus of High Speed 2. *


Pardon my asking a naive question:

would it be technically feasible to split a Southbound HS train at
OOC with half going East to Euston and the other half going West
to somewhere near Heathrow? Without causing material delays?

Presumably such a feature/arrangement would have to be designed in
from the start.


It's not a bad idea. There's no reason why it wouldn't work with two
200 metre trains. But the computers in both "halves" would need to be
rebooted, and that seems to take time and/or be a source of problems
when splitting trains.

Old Oak Common mega interchange
 

In article ,
Bruce wrote:

On Mon, 22 Mar 2010 16:06:36 -0700 (PDT), Mis
wrote:

Pardon my asking a naive question:

would it be technically feasible to split a Southbound HS train at
OOC with half going East to Euston and the other half going West
to somewhere near Heathrow? Without causing material delays?

Presumably such a feature/arrangement would have to be designed in
from the start.


It's not a bad idea. There's no reason why it wouldn't work with two
200 metre trains. But the computers in both "halves" would need to be
rebooted, and that seems to take time and/or be a source of problems
when splitting trains.

Why would anyone want to design splitting and joining trains with
computers that needed rebooting? Just because the current programming
is crap doesn't mean it always will be.

Sam

Old Oak Common mega interchange
 

"Sam Wilson" wrote in message
...
In article ,
Bruce wrote:

It's not a bad idea. There's no reason why it wouldn't work with two
200 metre trains. But the computers in both "halves" would need to be
rebooted, and that seems to take time and/or be a source of problems
when splitting trains.

Why would anyone want to design splitting and joining trains with
computers that needed rebooting? Just because the current programming
is crap doesn't mean it always will be.

I'm not sure they do - I travel fairly regularlyon SN and SWT trains that
split or join, and don't recall any issues with the train systems. I think
it is AC/DC changeover (eg on FCC Thameslink) where the rebooting issues
normally arise...

Paul S

Old Oak Common mega interchange
 

On Tue, 23 Mar 2010 11:50:58 +0000, Bruce
wrote:

It's not a bad idea. There's no reason why it wouldn't work with two
200 metre trains. But the computers in both "halves" would need to be
rebooted, and that seems to take time and/or be a source of problems
when splitting trains.

Where do you get that idea from? Many trains on the current rail
network split journeys without problem. TPE for one do it several
times a day at Preston.

The alternative to splitting (as I queried upthread) is to run
occasional services to Heathrow instead of Euston. I guess it depends
ultimately what kinds of rolling stock are specified - a 'standard'
400m version or 2 x 200m, as used on TGV services.