Welcome to European Tribune. It's gone a bit quiet around here these days, but it's still going.
Display:
Ah, so you meant to differentiate between container-carrying and standard enclosed semi-trailers? However, that's not a core difference between RoadRailer and RailRunner's Terminal Anywhere technology (particularly if I interpet RailRunner's note about "a trailer solution can also be made available" right), and I don't think there can be that much difference in freight capacity.

IMHO the limiting factors in a US context are not AAR- but road-related: the 13.5' outer height limit and the standardised 47-49" fifth wheel height. So the front end external height of the cargo-holding structure cannot be larger than 115". A high-cube container is 114". So what about the inside? Checking figures, high-cube container internal height is 106", while Triple Crown dry vans have an inside height of 110" at the front and 112.25" in the rear. So in effect the 4" thick bottom of the container (about 10 cm) and a slope 2.25" high at the end is what's gained.

If RailRunner (or any new RoadRailer version) comes to Europe, they'll need to lower their stuff by about 10 cm to fit roads, but fortunately that won't reduce the cargo height: both the road vehicle height limit (4 m or about 13'2") and the standard fifth wheel heights (seem to be between 950 and 1,150 mm, or about 37" and 45") are lower.

if there is a more "rounded" loading gauge in the target network, the top of the Roadrailer trailer could be made higher

If a trailer is designed to fit the rounded corners of older railway loading gauges in Europe, then it will have a smaller capacity than a standard road trailer while already being more expensive as a special rail-ready construction, and thus be at a disadvantage.

*Lunatic*, n.
One whose delusions are out of fashion.

by DoDo on Fri Jul 20th, 2012 at 05:01:14 AM EST
[ Parent ]
IMHO the limiting factors in a US context are not AAR- but road-related

That's what I said ~ its not an issue that has had to be considered in the US context, given US common loading gauges.

If a trailer is designed to fit the rounded corners of older railway loading gauges in Europe, then it will have a smaller capacity than a standard road trailer while already being more expensive as a special rail-ready construction, and thus be at a disadvantage.

But if it has the potential to extend the advantages of a Roadrailer in operating costs per trailer (labor/fuel) from the southeast of England into the Midlands or the North / Scotland, they could well be the dominate advantage. It depends on the number of trucks required to carry the freight ~ when you start combining the labor savings and the fuel savings for an eight trailer load, it starts to add up.


I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.
by BruceMcF (agila61 at netscape dot net) on Fri Jul 20th, 2012 at 02:22:23 PM EST
[ Parent ]

Display:

Top Diaries

Impeachment gets real

by ARGeezer - Jan 17
25 comments

A Final Warning

by Oui - Jan 10
112 comments

Environment Anarchists

by Oui - Jan 13
4 comments

More Spanish repression

by IdiotSavant - Jan 6
8 comments

Occasional Series