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[splott]

So simple but ingenius................................

http://www.wimp.com/chinatrain/

[Gaffers]

Link not working  :-/

[PhilRich]

The link doesn't work Splott :-?

[Andy H]

Try http://www.wimp.com/chinatrain

[splott]

Link not working  :-/

Oooooops.....................It is now

http://www.wimp.com/chinatrain/

[Lizzie_Zoom]

The trouble with that idea for the UK is our loading gauge is too small to allow for such "piggy back" units.

Then with the new high speed lines there are very limited stations required along the route in between the termini, so for the UK at least I cannot see it catching on.

[tunnie]

all UK needs is longer trains! Link from Oxford Manchester, the trains only run 4 carriages, all main stops can cope with 12.

[splott]

The trouble with that idea for the UK is our loading gauge is too small to allow for such "piggy back" units.

Then with the new high speed lines there are very limited stations required along the route in between the termini, so for the UK at least I cannot see it catching on.

I think that it is aimed more for city/ suburb commuter systems, UK gauge is 4'8" where in other countries it is 5'2". I don't think the smaller gauge would make any great difference .
:-/

[cem_devecioglu]

this can be used everywhere.. needs only adaptation..

[Lizzie_Zoom]

The trouble with that idea for the UK is our loading gauge is too small to allow for such "piggy back" units.

Then with the new high speed lines there are very limited stations required along the route in between the termini, so for the UK at least I cannot see it catching on.

I think that it is aimed more for city/ suburb commuter systems, UK gauge is 4'8" where in other countries it is 5'2". I don't think the smaller gauge would make any great difference .
:-/

No ours is actually 4' 8 1/2". "Gauge" though does not mean just for track; it also includes height and width of rolling stock and locomotives, commonly known as the "loading gauge".  That is the problem.  Bridges and tunnels here, and in Europe, could not accommodate those piggy back units.

Oliver Bullied, when Chief Mechanical Engineer for the Southern Railway designed a double deck set of carriages, but due to the UK gauge he could not make them of an ideal height for loading and unloading, with that unique set being withdrawn in the seventies.

[Lizzie_Zoom]

this can be used everywhere.. needs only adaptation..

Not in the UK Cem on existing track

[splott]

The trouble with that idea for the UK is our loading gauge is too small to allow for such "piggy back" units.

Then with the new high speed lines there are very limited stations required along the route in between the termini, so for the UK at least I cannot see it catching on.

I think that it is aimed more for city/ suburb commuter systems, UK gauge is 4'8" where in other countries it is 5'2". I don't think the smaller gauge would make any great difference .
:-/

No ours is actually 4' 8 1/2". "Gauge" though does not mean just for track; it also includes height and width of rolling stock and locomotives.  That is the problem.  Bridges and tunnels here, and in Europe, could not accommodate those piggy back units.

Oliver Bullied, when Chief Mechanical Engineer for the Southern Railway designed a double deck set of carriages, but due to the UK gauge he could not make them of an ideal height for loading and unloading, with that unique set being withdrawn in the seventies.

Couldn't get my 1/2" to work on my mobile.

Don't think height would come into it if it was a bogey type of system. The idea, I presume, is trvelling time, speed of transfer of passengers and fuel efficiency. :-/ :-/

[Lizzie_Zoom]

The trouble with that idea for the UK is our loading gauge is too small to allow for such "piggy back" units.

Then with the new high speed lines there are very limited stations required along the route in between the termini, so for the UK at least I cannot see it catching on.

I think that it is aimed more for city/ suburb commuter systems, UK gauge is 4'8" where in other countries it is 5'2". I don't think the smaller gauge would make any great difference .
:-/

No ours is actually 4' 8 1/2". "Gauge" though does not mean just for track; it also includes height and width of rolling stock and locomotives.  That is the problem.  Bridges and tunnels here, and in Europe, could not accommodate those piggy back units.

Oliver Bullied, when Chief Mechanical Engineer for the Southern Railway designed a double deck set of carriages, but due to the UK gauge he could not make them of an ideal height for loading and unloading, with that unique set being withdrawn in the seventies.

Couldn't get my 1/2" to work on my mobile.

Don't think height would come into it if it was a bogey type of system. The idea, I presume, is trvelling time, speed of transfer of passengers and fuel efficiency. :-/ :-/

How do you mean Splott?

There is limited clearance between the top of UK rolling stock and the roof;s of tunnels and bridges.  Engineers have for a long time tried to fit as much within that fixed restriction as possible with various boggie layouts.  They have only been able to actually successfully design coaches with level floor seating, apart from Bullied valiant attempt at double decking.  For instance British engineers have never been able to place observation 'pods' on the top of coaches as the American, Austrialian, and South African trains have.
 

[splott]

The trouble with that idea for the UK is our loading gauge is too small to allow for such "piggy back" units.

Then with the new high speed lines there are very limited stations required along the route in between the termini, so for the UK at least I cannot see it catching on.

I think that it is aimed more for city/ suburb commuter systems, UK gauge is 4'8" where in other countries it is 5'2". I don't think the smaller gauge would make any great difference .
:-/

No ours is actually 4' 8 1/2". "Gauge" though does not mean just for track; it also includes height and width of rolling stock and locomotives.  That is the problem.  Bridges and tunnels here, and in Europe, could not accommodate those piggy back units.

Oliver Bullied, when Chief Mechanical Engineer for the Southern Railway designed a double deck set of carriages, but due to the UK gauge he could not make them of an ideal height for loading and unloading, with that unique set being withdrawn in the seventies.

Couldn't get my 1/2" to work on my mobile.

Don't think height would come into it if it was a bogey type of system. The idea, I presume, is trvelling time, speed of transfer of passengers and fuel efficiency. :-/ :-/

How do you mean Splott?

There is limited clearance between the top of UK rolling stock and the roof;s of tunnels and bridges.  Engineers have for a long time tried to fit as much within that fixed restriction as possible with various boggie layouts.  They have only been able to actually successfully design coaches with level floor seating, apart from Bullied valiant attempt at double decking.  For instance British engineers have never been able to place observation 'pods' on the top of coaches as the American, Austrialian, and South African trains have.
 

I was just thinking that if the concept was changed from 'piggy backing' a passenger module on top of a passenger train ( as is shown) to a low train just pulling boggies.Thus the 'take up' of the modules could be taken within the 'foot print' of a standard UK train.
I don't know? :-/ :-/

[Lizzie_Zoom]

............................this is Bullied's attempt at double decking:




this is what is achieved in countries without loading gauge restrictions:




Oh, what could have been achieved with more foresight, such as with Brunel's 7' 0 1/4" gauge, but with a different attitude to loading gauge!!