By Road and Rail?

CygnusXII writes "Now this is a novel approach to Dual Mode Transportation. This is an interesting and refreshing approach, that could revolutionize the transportation industry. BladeRunner Dual Mode Transport, or see the main web page. The innovative vehicle will run on road as well as rail. It is as applicable to freight as to passenger transport. Branch-line infrastructure costs could be at least halved because signalling and points could be largely, if not totally, made redundant."

Comments

Nobody tell the Norfolk Southern railroad...

[hobbsbutcher]

The Norfolk Southern railroad has used a variation of this idea for years in their Triple Crown Service.

Nothing to new here

[SmallFurryCreature]

The idea of a road vehicle driving on rail part of the time, even the way of doing it (guidance by retractable wheel while power is supplied through the road wheels) is in daily use. Just check track maintenance vehicles.

I also seen several ideas on regular busses being fitted with guide systems so that could be driven without steering in between concrete guiderails. The advantage? It would require only track not a full road. The "hole" in the middle would make watering a lot lot easier while also leaving the area greener (and stop passenger cars from driving accross buslanes). At the same time the busdriver has less to concentrate on.

This idea seems more aimed at existing tracks. Plenty of places in the world where the old local railroad never been pulled up after the line was cancelled that could use the "faster" route for rural lines. I personally travelled by bus along a previous railroad route. Or rather the bus detoured a lot to zigzag accross highways while passing villages that if it had been following the railroad it could have served. I know because the railroad is used as a museum and the historical steam train journey is shorter then the bus journey.

So I do think the idea got some merrit, just not for freight. No big operator of a railroad is going to allow a vehicle like this. The biggest problem on the highspeed networks (where you need the signalling to be able to drive insanely fast in the worst of weather, old dutch commericial had a race driver boasting he could beat the speed limit in thick fog. He was sitting in a train :p ) is the number of vehicles that can be fitted. Better to run a few big trains then try to fit countless tiny busses on your major lines.

Since old rural lines tend to run from city center to village center a truck would have little point going there.

So a nice idea to breathe some life back into old rural lines without all the problems of busses (busses often don't really "fit" onto rural roads wich are often not designed for fast local traffic).

But as I said I seen this kinda thing before. About the closest I seen in practice is de "noord-zuid-as" bus "road" that operates in Amsterdam around the airport. Wich is a normal bus but a bit longer and drives on its own concrete road bypassing other traffic.

In Arnhem there is a trolley bus that can more easily leave the electric grid it is usually connected to by carrying its own generator. Allowing clean silent transport in the city but even more room to manouver then a normal trolley bus (they got tiny generators making off grid travel slow and noisy).

One thing I got a problem with however is their boasting about braking distances. Trains brake a lot slower and this is a good thing. People walk in a train, last thing you want is to stop so sudden all the people end up in the first carriage. Busses have a slight advantage that if they have an accident then it tends to be with passenger cars meaning they sorta just keep going. Fast braking with all your passengers loose is not a good thing. There been a few accidents with busses and lorries and the results are people dying at slow speeds. Unless this thing enforces the use of seatbelts they better make sure that emergency stop is not used.