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The US uses intermodal transportation. A truck loads freight and takes the
loaded trailer to a rail depot or port and the entire trailer is
transferred. It may either be a container that is placed on a chassis for
truck transport or sometimes the complete road trailer.
On Tue, 21 Mar 2023 19:01:13 -0000, Commander Kinsey wrote:
Depends which statistic you believe. And trains can only go where there
are tracks, so much loading and unloading and messing about at both
ends.
The US uses intermodal transportation. A truck loads freight and takes the
loaded trailer to a rail depot or port and the entire trailer is
transferred. It may either be a container that is placed on a chassis for
truck transport or sometimes the complete road trailer.
On 21/03/2023 19:55, rbowman wrote:
On Tue, 21 Mar 2023 19:01:13 -0000, Commander Kinsey wrote:
Depends which statistic you believe. And trains can only go where there
are tracks, so much loading and unloading and messing about at both
ends.
The US uses intermodal transportation. A truck loads freight and takes
the
loaded trailer to a rail depot or port and the entire trailer is
transferred. It may either be a container that is placed on a chassis for
truck transport or sometimes the complete road trailer.
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with bridges
and tunnels too small to allow that.
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with bridges
and tunnels too small to allow that.
On 3/21/2023 4:24 PM, SteveW wrote:
On 21/03/2023 19:55, rbowman wrote:
On Tue, 21 Mar 2023 19:01:13 -0000, Commander Kinsey wrote:
Depends which statistic you believe. And trains can only go where
there
are tracks, so much loading and unloading and messing about at both
ends.
The US uses intermodal transportation. A truck loads freight and
takes the
loaded trailer to a rail depot or port and the entire trailer is
transferred. It may either be a container that is placed on a chassis
for
truck transport or sometimes the complete road trailer.
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with
bridges and tunnels too small to allow that.
They double stack containers here.
https://en.wikipedia.org/wiki/Double-stack_rail_transport
On Tue, 21 Mar 2023 23:24:21 +0000, SteveW wrote:
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with bridges
and tunnels too small to allow that.
Lack of foresight...
There may be routes in the US that are restricted.
There are trucker atlases showing truck routes where there are no
underpasses with less than 13\' 6\" clearance. There may be something
similar for trains.
https://en.wikipedia.org/wiki/Trailer-on-flatcar
https://en.wikipedia.org/wiki/Double-stack_rail_transport
\" Nonetheless, North American railroads have invested large sums to raise
bridges and tunnel clearances along their routes and remove other
obstacles to allow greater use of double stack trains and to give them
more direct routes.\"
Related factoid: the Tiger tanks were a little too wide for the regulation
tunnel widths so when they were shipped by rail the outer road wheels were
removed and a narrow track installed.
On 22/03/2023 00:23, Bob F wrote:
On 3/21/2023 4:24 PM, SteveW wrote:
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with
bridges and tunnels too small to allow that.
They double stack containers here.
https://en.wikipedia.org/wiki/Double-stack_rail_transport
Yes, I\'ve seen them before.
As you can see here: http://igg.org.uk/gansg/2-track/ukavgauge.jpg the
AVERAGE loading gauge in England is far smaller. Some lines are smaller
still and require locos and rolling stock with reduced height and/or width.
On Tue, 21 Mar 2023 23:24:21 +0000, SteveW wrote:
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with bridges
and tunnels too small to allow that.
Lack of foresight...
On 22/03/2023 02:13, rbowman wrote:
On Tue, 21 Mar 2023 23:24:21 +0000, SteveW wrote:
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with bridges
and tunnels too small to allow that.
Lack of foresight...
Not really. Much of the network was built well over 100 years ago. Due
to the crowded nature of the UK, it would be incredibly disruptive to
update the huge number of bridges and tunnels here - there are six
bridges within a mile of me now, all on the same line, to connect two
sides of the town. To raise some of them would require very steep
approaches or demolishing a lot of buildings to allow a more gradual
approach.
On Tue, 21 Mar 2023 23:24:21 +0000, SteveW wrote:
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with bridges
and tunnels too small to allow that.
Lack of foresight...
There is. You can find videos of trains that have been sent along the
wrong route, such as this: https://www.youtube.com/watch?v=pcqfa_uj2hA
On 22/03/2023 02:13, rbowman wrote:
On Tue, 21 Mar 2023 23:24:21 +0000, SteveW wrote:
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with
bridges and tunnels too small to allow that.
Lack of foresight...
Partly a result of having to dig tunnels through rock by hand, with only
gunpowder available for blasting.
The right of way is now a bike trail. I rode up from the Avery side.
Headlights were required and I\'d bought the cheapest I could find.
On Wed, 22 Mar 2023 16:58:53 -0000, Max Demian <max_demian@bigfoot.com
wrote:
On 22/03/2023 09:00, SteveW wrote:
On 22/03/2023 00:23, Bob F wrote:
On 3/21/2023 4:24 PM, SteveW wrote:
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with
bridges and tunnels too small to allow that.
They double stack containers here.
https://en.wikipedia.org/wiki/Double-stack_rail_transport
Yes, I\'ve seen them before.
As you can see here: http://igg.org.uk/gansg/2-track/ukavgauge.jpg the
AVERAGE loading gauge in England is far smaller. Some lines are smaller
still and require locos and rolling stock with reduced height and/or
width.
This is why we can\'t have proper double decker passenger trains in the
UK. There were these https://en.wikipedia.org/wiki/SR_Class_4DD but they
were only one-an-a-half deckers. I used to travel on them sometimes; I
didn\'t realise they only made two trains like that.
How the hell did that work? Did they put short people on the top deck?
On 02/04/2023 23:50, Commander Kinsey wrote:
On Wed, 22 Mar 2023 16:58:53 -0000, Max Demian
max_demian@bigfoot.com> wrote:
On 22/03/2023 09:00, SteveW wrote:
On 22/03/2023 00:23, Bob F wrote:
On 3/21/2023 4:24 PM, SteveW wrote:
Containers go on trains here, but not usually entire trailers. Due to
being the first to develop railways, they were mainly built with
bridges and tunnels too small to allow that.
They double stack containers here.
https://en.wikipedia.org/wiki/Double-stack_rail_transport
Yes, I\'ve seen them before.
As you can see here: http://igg.org.uk/gansg/2-track/ukavgauge.jpg the
AVERAGE loading gauge in England is far smaller. Some lines are smaller
still and require locos and rolling stock with reduced height and/or
width.
This is why we can\'t have proper double decker passenger trains in the
UK. There were these https://en.wikipedia.org/wiki/SR_Class_4DD but they
were only one-an-a-half deckers. I used to travel on them sometimes; I
didn\'t realise they only made two trains like that.
How the hell did that work? Did they put short people on the top deck?
No, they just kind of sat on the lower deck people\'s heads. I can\'t find
a diagram.
On Wed, 22 Mar 2023 17:08:08 -0000, Max Demian <max_demian@bigfoot.com
wrote:
Some electrified lines were 6.25kV AC instead of 25kV (due to bridge
clearance issues) and the trains had to switch voltage very quickly when
they transitioned. I think they are all 25kV (for overhead lines) now,
so they must have changed something: perhaps they lowered the tracks.
Putting 25kV into something expecting 6.25kV could cause a the smoke to
come out.
On 02/04/2023 23:54, Commander Kinsey wrote:
On Wed, 22 Mar 2023 17:08:08 -0000, Max Demian <max_demian@bigfoot.com
wrote:
Some electrified lines were 6.25kV AC instead of 25kV (due to bridge
clearance issues) and the trains had to switch voltage very quickly when
they transitioned. I think they are all 25kV (for overhead lines) now,
so they must have changed something: perhaps they lowered the tracks.
Putting 25kV into something expecting 6.25kV could cause a the smoke to
come out.
They switched voltage automatically.