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"Road Trains" Ready To Roll

clickclickdrone writes to mention that "road trains," a system linking vehicles together via wireless sensors, could soon be rolled out in Europe. The system is designed primarily for cutting fuel consumption, travel time, and congestion. "Funded under the European Commission's Framework 7 research plan, Sartre (Safe Road Trains for the Environment) is aimed at commuters in cars who travel long distances to work every day but will also look at ways to involve commercial vehicles. Tom Robinson, project co-ordinator at engineering firm Ricardo, said the idea was to use off-the-shelf components to make it possible for cars, buses and trucks to join the road train."

318 comments

  1. Tailgating to the max by Anonymous Coward · · Score: 0

    This seems like a risky move, but it sure looks cool.

    1. Re:Tailgating to the max by cayenne8 · · Score: 5, Funny

      Why is my first thought of someone playing 'crack the whip' on one of these long trains??

      --
      Light travels faster than sound. This is why some people appear bright until you hear them speak.........
    2. Re:Tailgating to the max by VernonNemitz · · Score: 2, Interesting

      Sounds a lot like this idea: Train-of-cars that was posted more than 4 years ago. Note that means certain elements are therefore in the Public Domain and cannot be patented.

    3. Re:Tailgating to the max by daem0n1x · · Score: 4, Funny

      Here in Europe, we already use these trains during rush hour. They can reach lengths of many kilometers.

      We call them traffic jams. And we don' need no stinkin' wireless link.

    4. Re:Tailgating to the max by Runaway1956 · · Score: 3, Insightful

      "aimed at commuters in cars who travel long distances to work every day"

      I have a better idea. Hook those road trains up to their houses, and move the houses closer to work. That will save a LOT of fuel, not to mention wear and tear on the infrastructure.

      --
      "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
    5. Re:Tailgating to the max by jfengel · · Score: 5, Insightful

      Except that with this system, they don't need to be jammed. If everybody in the train presses the accelerator at once, knowing that the car in front of them will as well, everybody gets to move. You're not as limited by the following distance required by an unpredictable human driver and the unpredictable circumstances ahead.

      Reducing inter-car distance reduces the amount of road you need because you put more cars on the same amount of pavement, and the same highway functions as a much larger road. But it only works if you get the humans out of the loop.

      Of course it also provides opportunities for truly spectacular failures.

    6. Re:Tailgating to the max by hansamurai · · Score: 1

      Note that means certain elements are therefore in the Public Domain and cannot be patented.

      Sounds like a challenge.

    7. Re:Tailgating to the max by Nerdfest · · Score: 2, Funny

      No worse than usual. Where I come from this would space the cars out slightly ... but their behaviour would be more predictable.

    8. Re:Tailgating to the max by Anonymous Coward · · Score: 0

      As opposed to the current system, where accidents never happen.

    9. Re:Tailgating to the max by dpilot · · Score: 1

      I've been toying with some of the same ideas while driving the New York State Thruway over the past year or two. There are similar concerns to those mentioned here, along with a few others, and a few ideas to mitigate them. My working title for the idea, with due to Samuel L Jackson, has been "Snakes in a Lane."

      One little variation worth mentioning... The density and length of such trains (or snakes) would have to be managed so that regular traffic could manouver around them. I would also suggest giving them a 5-10 mph speed boost, given that they're already getting a mileage boost from drag reduction, and to induce drivers to join a train. I suspect one very real requirement is a computerized vehicle health self-check, to make sure it's fit to participate.

      It's a fun idea to play with while driving.

      --
      The living have better things to do than to continue hating the dead.
    10. Re:Tailgating to the max by SleazyRidr · · Score: 1

      The only thing that worries me is that they talk about mixing cars and trucks. Taking humans out of the loop can't overcome differences in the way vehicles handle. The only way I can see is to limit the deceleration rate to that which a truck can achieve. As a motorcyclist, I appreciate the value of as short a stopping distance as possible.

    11. Re:Tailgating to the max by pixelpusher220 · · Score: 2, Insightful

      except at 55-75 mph there's that much less room to react when the tire of the car in front of you blows out...

      Unless you're building in sensors that can check for each and every possible change to the front vehicles ability to maintain speed and safety.

      An automated roadway seems a better bet than semi-autonomous 'trains' on an uncontrolled road. The 'trains' would by their definition need to interact in real-time with humans driving cars the old fashioned way. Trying to get a computer to react properly to independent human behavior at that speed in unknown conditions seems a steep steep hill to climb.

      --
      People in cars cause accidents....accidents in cars cause people :-D
    12. Re:Tailgating to the max by Anonymous Coward · · Score: 0

      But if tailgating _against_ the car, an emergency brake of the first car would only dent a little, as the speed-difference is almost zero. and if brake of one car automatically brakes all following cars, there is no great danger.

      Maybe there is a need for something like ABS cutting in for the front-car when the back car really pushes the front-car, so the front keeps control, when brakes fail for the back-car.

      I am not seeing auto-steering yet, but cruise-control to get your car 30 cm (1 ft) of the back of your front-car seems very possible.

    13. Re:Tailgating to the max by jfengel · · Score: 1

      if brake of one car automatically brakes all following cars, there is no great danger.

      That's kind of a big "if". In theory, it works out great. In practice, it takes only one car to malfunction to cause vast damage.

      There's also the fact that you can't rely on braking to be perfect: any piece of junk on the road or worn tire has the potential to interfere with one car, with domino effects to every car behind it.

    14. Re:Tailgating to the max by MadnessASAP · · Score: 3, Informative

      They do say that the lead car of the train would be driven by professional drivers. of course that won't really help if a car in the middle of the train does something unexpected.

      --
      I may agree with what you say, but I will defend to the death your right to face the consequences of saying it.
    15. Re:Tailgating to the max by minorproblem · · Score: 2, Insightful

      Just though i would point out that the ability for a motorcycle to brake faster than a car or truck is a myth. If you have a car or truck setup with the same quality tyres and brakes as a performance motorcycle you will find they stop in the same or less distance (Due to certain circumstances where a larger contact patch is benificial such as braking on dirt etc). (I am a motorcyclist also =p).

    16. Re:Tailgating to the max by stevelinton · · Score: 2, Insightful

      except at 55-75 mph there's that much less room to react when the tire of the car in front of you blows out...

      Yes, if that happens you hit them! But, you don't hit them very hard because they haven't had time to decelerate very much and your autopilot slammed on the brakes the millisecond they started to slow.

      In the worst case, if the lead car suddenly loses a tire or something, the whole train probably collides, rather gently and then comes to a stop as a mass. Might scratch some paintwork, but unlikely to kill, or even hurt, anybody.

      On a totally automated road system you would have trains like this separated by gaps big enough to ensure that even if one train is brought to a sudden halt (say by hitting a falling tree or a rogue motorist) the one behind has space to do a controlled stop.

    17. Re:Tailgating to the max by Saunalainen · · Score: 1

      Taking humans out of the loop can't overcome differences in the way vehicles handle.

      On the contrary, that's exactly what a computer can do - and more reliably than a human (think of autopilots and fly-by-wire). The system would need to know the performance curve (especially braking performance) of each vehicle involved, but we understand physics pretty well and these things are easily quantifiable. If designed properly, the system would be constantly measuring and updating its model of the vehicle's performance in real time, and would take account of weather, road surface, etc.

    18. Re:Tailgating to the max by wvmarle · · Score: 1

      True, but not feasible any more these days. Work and living areas are separated: there are no houses at walking distance from most offices. Or they are very expensive. On top of that transportation is cheap. Fuel is cheap - also in Europe. And for anyone who doesn't believe that, ask the question: have you ever left your car and used alternative transportation (walking, bicycle, public transport) instead because you find the fuel too expensive? I bet the answer is "no".

      On top of that it would almost always mean moving home when you change jobs. That's no fun either. Or what about if both husband and wife work, in different companies, and still want to live together.

      People like to live in open, green space while many businesses prefer the convenience and availability of all kinds of services of central and business districts. We'd better live with that, and try to make the commute as fast, ecological friendly and safe as possible.

    19. Re:Tailgating to the max by pixelpusher220 · · Score: 1

      I missed that part I guess. That seems to be even less likely to succeed. Now you need a professional driver going primarily where you're going as well? Obviously on well traveled routes such as commuting this might work, but carpooling does much the same thing without any added risks.

      Someone mentioned handling characteristics of different cars. A good point if the lead car has to make emergency maneuvers...how does the tail end of the train react?

      --
      People in cars cause accidents....accidents in cars cause people :-D
    20. Re:Tailgating to the max by pixelpusher220 · · Score: 1

      When traveling at speed even minor bumps can greatly affect the handling of a car.

      If you're hitting a car that now has a blown tire, I imagine it's that much worse.

      My original post was mostly that this was *not* an automated roadway; these 'trains' would be traveling on open roadways with 'regular' traffic. A fully automated system would be better I think because you'd have the 'swarm' type of reactions with computers rather than mixing human and computer decision making with split second requirements.

      --
      People in cars cause accidents....accidents in cars cause people :-D
  2. What hath the free market wrought? by BitHive · · Score: 3, Interesting

    If this catches on in America some gear heads are going to explode.

    1. Re:What hath the free market wrought? by wizardforce · · Score: 2, Interesting

      Well considering the internet evolved from a government project I'd say there isn't going to be any heads exploding over this. Especially if it has military applications which it probably does. Reducing fuel expenditure is a tactical advantage and the vast majority of free market types still support the idea of the government fulfilling the role of national defense to some degree.

      --
      Sigs are too short to say anything truly profound so read the above post instead.
    2. Re:What hath the free market wrought? by Bakkster · · Score: 1

      Well considering the internet evolved from a government project I'd say there isn't going to be any heads exploding over this. Especially if it has military applications which it probably does. Reducing fuel expenditure is a tactical advantage and the vast majority of free market types still support the idea of the government fulfilling the role of national defense to some degree.

      I doubt the military would use this, at least not overseas. Decreased fuel consumption isn't worth turning a bunch of small targets into one large target. An IED or RPG would go from hitting 1-2 Humvees to 3-6.

      The national security benefit from reducing our domestic oil consumption by even 1% is pretty significant, though.

      --
      Write your representatives! Repeal the 2nd Law of Thermodynamics!
    3. Re:What hath the free market wrought? by Idiomatick · · Score: 4, Funny

      It involves people joining together which is clearly socialist.

    4. Re:What hath the free market wrought? by SleazyRidr · · Score: 1

      There's no reason a private company couldn't set up something like this. Pay a subscription then when you see one of your companies cars you can go and join the train on the highway. A couple of bribes will have the traffic code altered to allow these, and the free market will take care of the rest.

    5. Re:What hath the free market wrought? by fiannaFailMan · · Score: 2, Insightful

      ... the vast majority of free market types still support the idea of the government fulfilling the role of national defense to some degree.

      No, they just don't think about it. That would interfere with the "all government is evil" mantra that has been drilled into their heads by corporate media interests.

      --
      Drill baby drill - on Mars
    6. Re:What hath the free market wrought? by Max+Littlemore · · Score: 1

      Well I thought it was funny...

      --
      I don't therefore I'm not.
    7. Re:What hath the free market wrought? by Anonymous Coward · · Score: 0

      Seeing this reminds me all too painfully of the Made-for-TV movie The Big Bus

    8. Re:What hath the free market wrought? by yukk · · Score: 5, Interesting

      Well considering the internet evolved from a government project I'd say there isn't going to be any heads exploding over this. Especially if it has military applications which it probably does. Reducing fuel expenditure is a tactical advantage and the vast majority of free market types still support the idea of the government fulfilling the role of national defense to some degree.

      I doubt the military would use this, at least not overseas. Decreased fuel consumption isn't worth turning a bunch of small targets into one large target. An IED or RPG would go from hitting 1-2 Humvees to 3-6.

      The national security benefit from reducing our domestic oil consumption by even 1% is pretty significant, though.

      The US Army is already looking into something similar to this but not with the high-speed tailgating effect. They're using one lead driver to lead a group of radio-linked trucks so they can get several times the supplies moved with less exposure of personnel to hostile forces. I only did a quick search so here's what I came up with: http://www.controleng.com/blog/AIMing_for_Automated_Vehicles/14540-Robot_Convoy_Truck.php

      --
      The trouble with the rat race is that even if you win, you're still a rat." Lily Tomlin
    9. Re:What hath the free market wrought? by Anonymous Coward · · Score: 0

      Just like going together in a train, plane, etc. yeah ! And the rear seat on a motorbike is a clear evidence of socialism too.

      Some people are just too funny... ;-)

    10. Re:What hath the free market wrought? by Bakkster · · Score: 1

      Ah, good call. Another case of same technology, different application. Just like military UAVs are used for killing terrorists, civilian UAVs are used for photographing farm fields.

      --
      Write your representatives! Repeal the 2nd Law of Thermodynamics!
  3. Ummm by Finallyjoined!!! · · Score: 0

    Don't we have this already?

    Railway trains perchance?

    Prawns.

    --
    If I had an Ass, I'd call it Fanny Bottom, then I could slap my Ass; Fanny Bottom, on the Arse.
    1. Re:Ummm by mmkkbb · · Score: 1

      Well, if you take a train then need a car at your destination, you need to rent one or spend money on cab fare. If you have too much stuff to take in the train (e.g. moving house a long distance), a train is not an option whatsoever. There are also places with existing roads where building new heavy rail would be impossible or impractical or incredibly expensive.

      --
      -mkb
    2. Re:Ummm by Finallyjoined!!! · · Score: 1, Insightful

      You could, you know, drive your car onto the train.......

      --
      If I had an Ass, I'd call it Fanny Bottom, then I could slap my Ass; Fanny Bottom, on the Arse.
    3. Re:Ummm by cynyr · · Score: 1

      how about the moving van? Ever move a family of four in a house? or hell either of my grandmothers.

      --
      All of the above was encrypted with a Quad ROT-13 method. Unauthorized decryption is in violation of the DMCA.
    4. Re:Ummm by PPH · · Score: 2, Informative

      Its been done. On some smaller roads connecting towns in Austria, I've seen them prohibit truck traffic. In each town, they drive the trucks onto railroad flatcars and haul them between towns.

      --
      Have gnu, will travel.
    5. Re:Ummm by Anonymous Coward · · Score: 0

      how about the moving van?

      Use a container truck and load the container onto a spine wagon. Railways are really good at moving bulk cargo...

  4. I just hope... by mmkkbb · · Score: 2, Interesting

    That you can check the professional driver's safety record before joining the train.

    --
    -mkb
    1. Re:I just hope... by jason.sweet · · Score: 1

      As long as it's Kris Kristofferson diving the lead vehicle, we have nothing to worry about.

    2. Re:I just hope... by vlm · · Score: 1

      That you can check the professional driver's safety record before joining the train.

      And his blood alcohol content? Which brings up a fascinating scenario. Could you bring an unopened booze bottle into a car and then join a train? Then chug the booze, with the plan that you'd sober up well before your 2 hour commute is over? But, something happens, and the train kicks you out? Now you're DWI, but its someone elses fault?

      Or, even if no drinking was done in the car, if your digestion was slow enough that your BAC was below the limit BOTH before and after you joined the train, but while you were a passive passenger in the train, it was above the limit, is that still legally DWI even if you were not driving?

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    3. Re:I just hope... by Wonko+the+Sane · · Score: 3, Interesting

      It sucks that this system even needs a professional driver to begin with. A better system would be fully peer-to-peer in that any two cars that happened to be traveling in the same direction could link up.

      Of course that would break this company's buisness model, but it would make sense for the car manufacturers to implement it that way.

    4. Re:I just hope... by BasilBrush · · Score: 3, Insightful

      You don't check a railway train driver's safety record. Or a bus drivers or a taxi drivers. Yet you are putting your life in the their hands on the basis that you trust they are qualified from the job, haven't been sacked for being incompetent, and have some trust in whatever safety systems are in place. This is no different.

    5. Re:I just hope... by Hurricane78 · · Score: 1

      Don't worry. They will just hire experienced bus drivers! I heard they can drive a 40 hour trip with less than 10 hours of sleep. Also they apparently found a very good deal, from some professionals who won because of their second lowest bid, and because the project manager personally chose his brother's company for being so great at it.

      I mean, what could possibly go wrong?

      </sarcasm>

      --
      Any sufficiently advanced intelligence is indistinguishable from stupidity.
    6. Re:I just hope... by interploy · · Score: 1

      I'm curious to see how they handle the safety aspect. Such as will these sensors make sure cars are road safe before adding them to the train? I'd hate to have a guy with crap brakes get in behind me. Or how close do the vehicles need to be in order for the train to work? Can non-train traffic weave in between cars in a train? And what if the lead car wreaks? Will it make an automatic pile up as every other car follows the first?

      I don't know if I'd love or hate to be on the engineering team for this. It's an interesting challenge, but could very easily become a nightmare.

    7. Re:I just hope... by Anonymous Coward · · Score: 0

      I'm more worried about when they pass through a built up area and someone's running a microwave oven... BZZT! Bye bye wireless lead car connection

    8. Re:I just hope... by mmkkbb · · Score: 1

      You can check a bus company's safety record, and you can report or check out a taxi driver's medallion or license.

      --
      -mkb
    9. Re:I just hope... by fullgandoo · · Score: 1

      Why not connect each vehicle mechanically to each other and to the lead vehicle? That should take care of a large number of technical and engineering challenges.

    10. Re:I just hope... by BasilBrush · · Score: 1

      But nobody does before catching a bus or taxi.

    11. Re:I just hope... by coolsnowmen · · Score: 1

      You argument holds true for a bus, but certainly not for a train. The circumstances of train travel are much more controlled, and statistically safer.

    12. Re:I just hope... by Anonymous Coward · · Score: 1, Insightful

      Speaking as a professional driver. I would be FAR more interested in YOUR driving record. We lose our licenses for things that would only result in a small fine for you. Four wheelers scare the hell out me. Most drive with their brain disconnected and their heads WAAAAAY up their collective asses. Starbucks in one hand and cell phone in the other. Yes, some professionals are no better but as a group, our safety records way outshine most non-professionals.

    13. Re:I just hope... by ILuvRamen · · Score: 0, Troll

      I've got a similar but more efficient idea. Just have the sensors detect if you're a complete dumbass when it comes to driving and then automatically pull you over and kill your engine. Like if you consistently go 55 in a 65, swerve, and slam on the brake randomly like most Buick drivers and people from Illinois, then the system forces you to get the hell off the road and let the competent drivers go. That would clear up about 99% of congestion. At the front end of all large traffic slowdown lines is one dumbass ruining everyone's day by driving with their head up their ass and any efficiency calculations and route planning won't help congestion. Removing that dumbass will help congestion!

      --
      Google's Super Secret Search Algorithm: SELECT @search_results FROM internet WHERE @search_results = 'good'
    14. Re:I just hope... by CrazyDuke · · Score: 1

      Not only that, but, I hope there is a way for the driver to quickly override the system should an emergency lane change be needed. I have had people cut me off and slam on the breaks (surprisingly common), drop unsecured ladders and furniture in the road in front of me, lose control and impact other vehicles, etc... And, even if you did leave enough following distance you often will have a dozen 4-wheelers packed under your trailer if you hit the breaks.

      There are too many wanna-be street racers, chat happy morons that think they are invulnerable in their civilian tanks, and all around passive-aggressive idiots that love nothing better than to piss everyone else off on the road because they can here in the states for this to be practical. I don't know about Europe.

      --
      Any sufficiently advanced influence is indistinguishable from control.
    15. Re:I just hope... by lena_10326 · · Score: 1

      A better system would be fully peer-to-peer in that any two cars that happened to be traveling in the same direction could link up.

      What would suck is when 100 of them link up and form impassable moving clogs. Imagine trying to get to the off-ramp quickly but several 30 length car trains are barricading you.

      --
      Camping on quad since 1996.
    16. Re:I just hope... by Wonko+the+Sane · · Score: 1

      If your car is equipped with the same system then presumably it could signal the train to open up and give you space to exit.

      If your car is not equipped then you could just go for it and hope that the other cars' collision avoidance systems can cope.

    17. Re:I just hope... by holmstar · · Score: 1

      It would still be DWI, because if something should fail with the control system, then you as a driver need to be able to take control of the car.

    18. Re:I just hope... by Anonymous Coward · · Score: 0

      Today working at some train tracks, Saw a lady get out of the school bus she was driving after parking it in the school bus lot. gets in her little car. rail systems starts going on, Bells ringing, lights flashing, barrier guard dropping she guns it though with about 8 guys in safty vests running outta the way..

      as one of em said " yeah thats who I want to be driving my kids"

  5. Fuel economy ? by ivan_w · · Score: 1, Insightful

    Ah ah !

    20% less fuel for the vehicles following the main vehicle..

    (they forget to mention the *EXTRA* fuel expense for the leading vehicle that is basically towing the others..)

    Basically, no one will ever want to be in front (look at cycle races.. it only works if people take turns at being the 1st in line..)

    --Ivan

    1. Re:Fuel economy ? by mmkkbb · · Score: 3, Informative

      The lead vehicle is a purpose-built vehicle driven by a professional driver, not a 'passenger' of the train.

      --
      -mkb
    2. Re:Fuel economy ? by russotto · · Score: 3, Insightful

      (they forget to mention the *EXTRA* fuel expense for the leading vehicle that is basically towing the others..)

      This is not always the case. In some cases, the reduction of the drag from turbulence off the rear means that the leading vehicle also gets a benefit, though not as much as the following ones. This is true in stock car racing and in skating; I don't know about cycling.

    3. Re:Fuel economy ? by Nerdfest · · Score: 4, Funny

      Don't forget that if you're in front you're winning. A true gamer has rear view mirrors that say "Objects in mirror are losing".

    4. Re:Fuel economy ? by mlyle · · Score: 4, Informative

      Actually, lead vehicles benefit from this, too, just not nearly as much.

      Even though vehicle aerodynamics have tried to combat it, there is a big negative pressure bubble forming your car's wake 'pulling' it backwards. Partially filling it with another vehicle's high pressure region where it 'cuts' the oncoming air helps.

    5. Re:Fuel economy ? by jcochran · · Score: 5, Informative

      Actually, the vehicle in front also benefits from the drafting. Not to the same degree as the trailing vehicles, but it gets a significant benefit none the less. See http://www.livescience.com/technology/070215_nascar_aero.html for details.

    6. Re:Fuel economy ? by Anonymous Coward · · Score: 0

      Or like carpooling here, we can just pay the lead driver some small stipend to make up for it ...

    7. Re:Fuel economy ? by Anonymous Coward · · Score: 0

      20% less fuel for the vehicles following the main vehicle..

      (they forget to mention the *EXTRA* fuel expense for the leading vehicle that is basically towing the others..)

      Not true. If you look at the aerodynamics, the low pressure behind the leading vehicle (by itself) actually slows it down by increased drag. Putting a 2nd vehicle closely behind the first also reduces the drag on the leading vehicle.

      Basically, no one will ever want to be in front (look at cycle races.. it only works if people take turns at being the 1st in line..)

      Bike races are different - because it's not a question of using less energy. It a question of using less energy THAN THE OTHER COMPETITORS.

    8. Re:Fuel economy ? by LtGordon · · Score: 1

      they forget to mention the *EXTRA* fuel expense for the leading vehicle that is basically towing the others..)

      Fortunately, aerodynamics does not work like that. The reduced fuel consumption for the following vehicles is a result of reduced aerodynamic drag. Basically the lead vehicle pushes the air and forms a low-pressure wake behind it that the followers take advantage of. However, there is no additional drag penalty for the lead car. The only thing the lead car has to envy is the fuel savings that he doesn't get by being up front.

      Statistically speaking, this would be mitigated by the fact that you should only rarely have to be at the front of the "train". E.g. in a ten car "train", you could expect to be a beneficiary approx. 90% of the time.

    9. Re:Fuel economy ? by RealGrouchy · · Score: 1

      (they forget to mention the *EXTRA* fuel expense for the leading vehicle that is basically towing the others..)

      WTF?

      Trailing vehicles (in cycling or in trucking) are merely fitting into the pocket made by the lead vehicle, which would otherwise have been wasted into turbulence. The lead vehicle would have to break through the wind either way. If anything, the absence of turbulence behind their vehicle (since another vehicle is carrying the stream) would improve their aerodynamics for the lead vehicle.

      Would you similarly suggest that if I create some software and release the code for others to use and modify, that it would require more programming on my part than if I just wrote the exact same code and kept it to myself?

      - RG>

      --
      Hey pal, this isn't a pleasantforest, so don't waste my time with pleasantries!
    10. Re:Fuel economy ? by JesseMcDonald · · Score: 1

      (they forget to mention the *EXTRA* fuel expense for the leading vehicle that is basically towing the others..)

      Where is this magical extra drag coming from?

      A line of well-designed vehicles has basically the same drag characteristics as a single long vehicle. The drag for a vehicle consists mainly of the pressure acting on the front and the vacuum acting on the back; a long vehicle and a short vehicle with the same general profile in these areas will have about the same drag. In a vehicle train, the first and last vehicles benefit the least—but still benefit some, since they only have to deal with the pressure or vacuum, not both—and the vehicles in the middle can disregard air resistance almost entirely. None of the vehicles is stuck "towing" the others; instead, the first and last vehicle share the work of separating, accelerating, and recombining the air stream around the entire vehicle train, tasks which would otherwise have to be repeated independently for each vehicle.

      --
      "The state is that great fiction by which everyone tries to live at the expense of everyone else." - Bastiat
    11. Re:Fuel economy ? by Anonymous Coward · · Score: 0

      Right so a (probably exaggerated) 20% increase in efficiency of the vehicles behind.

      But an additional vehicle on the road, that I assume is going to be a larger vehicle. So absolute best case scenario you need 5 cars following in the train at a minimum just to brake even, assuming the lead vehicle has similar efficiency (larger cross section required for this to work well, but do it with less weight, since you don't need extra capacity for passengers or cargo). In reality you'd probably need 6 or 7 to break even, and more to have any benefit.

      And that's if they all tuck in immediately after the lead vehicle gets on the highway/carriageway. More than 7 to even start having any benefit, again, immediately after the vehicle gets on. Else wise you have to make up the time he’s driving around with less than 7.

      Plus you've got the salaries for all of these "Cabdrivers" towing everyone around.

      And the reality is he'll get on the highway and start trolling for leachers to tuck in behind, and except for the right times of day, he'll never get that. So we've just put the concept of empty or below capacity trains trolling around looking for passengers, onto the roads.

      Of no use during gridlock of course.

    12. Re:Fuel economy ? by ivan_w · · Score: 1

      Makes sense.. Guess I didn't read TFA up to the end !

      But anyway, I am not 100% sure (but I am no aerodynamics physicist) of how efficient this would be *overall* as far as fuel consumption is concerned.

      However, the undeniable advantage is being able to zap through traffic (because the road lane would have to be committed to this) - and possibly going above posted speed limits "legally"
      But because one of the characteristics are that all vehicles are essentially tailgating each others, at high speed and with no driver intervention, there are also some concerns:

      - All vehicles would need to be at a certain guaranteed reliability limit
      - The communication system has to be secure as you don't want some moron entering a "train" and feeding bogus information to the cluster
      - The communication system has to be reliable enough so that none of the train components miss some essential piece of information
      - The lane has to be protected against unauthorized intrusion
      - Possibly others..

      --Ivan

    13. Re:Fuel economy ? by ivan_w · · Score: 4, Funny

      Ok.. Made a fool of myself..

      There seem to be overwhelming evidence that I was utterly wrong.. Ah well..

      Since I can't mod myself -1 stupid, I'll just flog myself 10 times !

      --Ivan

    14. Re:Fuel economy ? by dr2chase · · Score: 1

      It is true of cycling, at least in certain cases, I read it in the most recent edition of (the book) Bicycling Science. It's not nearly as large as the benefit from following.

    15. Re:Fuel economy ? by 4D6963 · · Score: 2, Informative

      (they forget to mention the *EXTRA* fuel expense for the leading vehicle that is basically towing the others..)

      Oh look, someone who doesn't know what he's talking about by tries to sound like he does just got modded up. "Trailing cars fill in the lead car's low-pressure wake, thereby cutting down pressure drag."

      --
      You just got troll'd!
    16. Re:Fuel economy ? by chronosan · · Score: 1

      If you're a GOOD developer, and focus on making your system reusable, then ...yes.

    17. Re:Fuel economy ? by wizardforce · · Score: 1

      Birds do this all the time. If it didn't benefit the flock to form these cooperative formations then it would not have been selected for as strongly as it obviously was.

      --
      Sigs are too short to say anything truly profound so read the above post instead.
    18. Re:Fuel economy ? by vertinox · · Score: 2, Informative

      I'm sure they could... you know... take turns.

      Truckers in general are pretty congenial amongst themselves on the road. It only takes a few minutes on listening to the CB radio to know they got each others backs.

      --
      "I am the king of the Romans, and am superior to rules of grammar!"
      -Sigismund, Holy Roman Emperor (1368-1437)
    19. Re:Fuel economy ? by natehoy · · Score: 1

      And given that the lead car in such a "train" (according to the article) is a professional driver operating a purpose-built vehicle, the only one incurring a drag penalty is the vehicle that was built and is operated specifically to accept the drag penalty.

      Which leads to some interesting economics. If each car in the line enjoys a 10% increase in fuel efficiency, and you have ten cars in line, you are (at best) saving approximately the fuel that would have been consumed by a theoretical car that gets the average fuel mileage of the line. You are gaining that benefit by running a dedicated vehicle and driver to "break wind" (pun intended) for the rest. That dedicated vehicle is going to be laden with a certain amount of electronics, and probably some good crash zone front-and-back just in case something goes wrong. So it's hardly going to be "above average efficiency".

      So, how many cars would have to be running in a duckling formation like this to make up for the fuel and maintenance incurred by having the lead vehicle out there, the wages for said driver, etc?

      If the formations are long enough to be efficient, they are going to be (for all intents, traffic-wise) a single contiguous vehicle running (obviously) at or near the speed limit. If you run it in the "speed/passing" lane, you'll have asshats whirling around on the right trying to get around you and it's going to be hard to separate from the pack to exit. If you run it on the "slow/ramp" lane, no one will be able to onramp as you pass by. And if you run it in the middle lane(s) if they exist, you'll effectively make it impossible to cross over from edge lane to edge lane (fast lane to an exit, for example) without disruption of the line. Any place you put this "train", you're going to affect the efficiency of traffic flow around you.

      Or you keep the lines of cars really short, in which case see the "economical" question posed immediately above.

      If ALL vehicles did this, it could work, maybe. If nothing goes wrong with any of the cars in line (tire blown or any sort of panic maneuver, or simply electrical failure or running out of gas). But if you have a pool of vehicles that did this mixed with other cars, you'd have problems. Heck, one idiot pulling in front of mama duck and slamming on his brakes HARD is going to cause almost all of the vehicles in line to get dented up at least. No two cars have the exact same braking force, so telling all the cars to panic stop will get almost all of them bouncing into each other.

      "New terrorist tip, pull in front of road train and throw an infidel out the window"

      One advantage, though... the lead vehicle could have the potential to be carrying either people or cargo, so if you enlisted Greyhound or professional long-haul truckers to do this, you could at least use existing miles consumed to run it, rather than running new vehicles that ONLY serve as windbreakers. This would best be handled as a dedicated, separated lane, maybe one that could be shared with existing bus lanes where they exist, and busses could be used as the lead vehicles.

      --
      "This post contains words, known to the State of California to cause thought. Wash brain thoroughly after reading."
    20. Re:Fuel economy ? by Eivind · · Score: 2, Insightful

      Nope. Not true. The leading vehicle experiences no extra drag at all, thing is it -is- to some extent towing the vehicles behind it, but if it wasn't it would instead be towing the -air- along, to the same degree. (that air being dragged along is, afterall, the source of the saved fuel for the cars behind.

      5 cars driving close together really do use less fuel in sum, compared to 5 individual cars. It's -not- just a question of redistributing the consumption, there's real savings.

    21. Re:Fuel economy ? by OldSoldier · · Score: 1

      Good to see this particular technology come to life. It's been discussed a bunch in the past. However, when I read the headline I thought of my fav alternative, actual TRAINS.

      The idea is to extend the ferry boat concept to things like Amtrack. I live in Seattle and when I need to go to Portland I drive instead of taking the train at least in part because I'll need my car when I get there. If I could drive my car on to a train and wait in the train for the trip to Portland and then drive off once I arrive, I may actually consider using mass transit to get from here to there.

      In short, the problem with mass transit is it's a hub-to-hub solution and unless there's a hub-to-destination solution at both ends it's always going to be a hard sell. Ferry's (IMHO) and to a lesser extend the OP's "Land Trains" solve the complete destination-to-destination problem.

    22. Re:Fuel economy ? by BryanL · · Score: 1

      Since the lead vehicle will be driven by a professional driver there is a good chance it will be a semi. If it is, the owner can make additional revenue through advertising. Set up a big video board on the back of the truck and sell ad space. The cars behind are a captive audience. I can already see trucks heading to Vegas advertising casinos. Wait. Maybe I should get a patent.

    23. Re:Fuel economy ? by Hurricane78 · · Score: 1

      Shall I smite you, milord?

      --
      Any sufficiently advanced intelligence is indistinguishable from stupidity.
    24. Re:Fuel economy ? by IndustrialComplex · · Score: 1

      Even though vehicle aerodynamics have tried to combat it, there is a big negative pressure bubble forming your car's wake 'pulling' it backwards. Partially filling it with another vehicle's high pressure region where it 'cuts' the oncoming air helps.

      I would imagine that would only apply in a series of unconnected cars. When the cars are connected, that negative pressure bubble will exist at the end of the final car and exert the force on the pulling vehicle through the link system.

      That doesn't occur for bikers since there is no linking mechanism for the rear vehicle to pull on the leading vehicles.

      --
      Out of modpoints but really liked a post? 1BDkF6TtmmeZ3yqXbz9yhdYVqRYnwFoXDj
    25. Re:Fuel economy ? by Lars+T. · · Score: 2, Insightful

      Right so a (probably exaggerated) 20% increase in efficiency of the vehicles behind.

      Mythbusters did a test at 55 mph, where they got 20% at 50 feet distance and 39% at 10 feet, and that with a car driven "by hand", not remote controlled by the leading truck.

      And in NASCAR, both cars drafting go faster (even if the following car gets the better deal), so it's unlikely that the truck will have a much lower efficiency, if not actually a better one.

      Last but not least: why do people assume that the truck needs to be an "extra" vehicle that wouldn't drive otherwise instead of a regular truck with some extra equipment, with the driver/owner getting some benefit for doing the job (like being allowed to legally go faster than other trucks).

      --

      Lars T.

      To the guy who modded me down from perfect to terrible Karma - Apple haters still suck

    26. Re:Fuel economy ? by commodore64_love · · Score: 1

      What birds would those be? Every flock I see the birds are arranged diagonally, and therefore not drafting one another.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    27. Re:Fuel economy ? by amorsen · · Score: 2, Informative

      They are certainly drafting. It's just that flying things disturb the air in a quite different pattern from ground vehicles. Staying right behind someone flying means being in the down-draft which is keeping the leader up, which means you have to work harder to keep yourself up. To the side you can catch a bit of up-draft from their wing vortices, in addition to less wind resistance.

      --
      Finally! A year of moderation! Ready for 2019?
    28. Re:Fuel economy ? by macbutch · · Score: 4, Funny

      Wait! What? Did someone on the internet admit they were wrong?

      What the hell is going on???

    29. Re:Fuel economy ? by amorsen · · Score: 1

      Car trains exist; I used one for a 1500km journey this summer. It's slow and inconvenient though, and apparently I have trouble sleeping on a train even in something resembling a proper bed.

      They aren't very good for the environment because as efficient as trains are, adding an extra half-tonne of steel or so per passenger isn't good for fuel economy. A reasonably fuel-efficient car filled to capacity and driven at typical highway speeds is difficult to beat for all forms of public transport.

      --
      Finally! A year of moderation! Ready for 2019?
    30. Re:Fuel economy ? by JTsyo · · Score: 1
      Birds do it for the up wash from the wings, not drag reduction from frontal surface area.

      http://en.wikipedia.org/wiki/V_formation

    31. Re:Fuel economy ? by Anonymous Coward · · Score: 0

      Is that Binary or Decimal floggings?

    32. Re:Fuel economy ? by m.ducharme · · Score: 1

      My impression is that the cars would only be connected by the control computer in the lead vehicle, via wireless network. There's no physical connection, and presumably the control computer, if smart enough, could tune the distance between cars to get a better over-all mileage.

      --
      Rule of Slashdot #0: You and people like you are not representative of the larger population. - A.C.
    33. Re:Fuel economy ? by SleazyRidr · · Score: 1

      Well, the cars aren't going to be physically connected, but I can see how a negative pressure 'wave' could pull all the cars backwards. If I had slightly more inclination, I'd pull out my old fluid mechanics books and try to do some calculations looking at the effect of drag from friction with the air compared to the resistive force from the partial vaccuum behind the car...

      Acutally I'd need a lot more inclinantion to do all that work.

    34. Re:Fuel economy ? by dontmakemethink · · Score: 1

      Presumably there would also be dedicated "train lanes", and the lead driver could photograph and report drivers that interfere with the trains. That should keep them clear.

      The tricky thing is that each car will have different braking sensitivities. Would they be calibrated? The system should be capable of stopping as fast as the lead vehicle can, and it's possible to do so, but the cars will have to self-calibrate routinely, i.e. tire pressure variations change how quickly a car stops with a given brake pedal pressure.

      --

      War as we knew it was obsolete
      Nothing could beat complete denial
      - Emily Haines
    35. Re:Fuel economy ? by Anonymous Coward · · Score: 0

      they forget to mention the *EXTRA* fuel expense for the leading vehicle that is basically towing the others..)

      Fortunately, aerodynamics does not work like that.

      I may be wrong but I think virtually everyone is missing a part of the point. Unless the professional, paid driver up front is actually going somewhere, THAT is the wasted fuel I read that the OP was describing. Seems to me that members of the commuting public should be able to take exams and get licensed to serve as lead cars. The thought of putting paid government workers out there in traffic just to assemble "drafting teams" since wasteful to me, too, unless - like I said - those drivers actually have a destination.

    36. Re:Fuel economy ? by commodore64_love · · Score: 1

      Thanks.
      +1 informative.
      So basically the example of birds getting "uplift" from one another has no application to cars in any way, shape or form.

      ;-)

      (goes back to drinking German beer)

      "A woman on the radio talks about revolution, but it's already passed her by. It feels good to be alive. I was alive and I waited for this. Right here, right now; there is no other place I want to be..... watching the world wake-up from history. ----- I saw the decade end, when it seemed the world could change at the blink of an eye. And if anything then there's your sign, all the time. I was alive and I waited, waited for this. I was alive and I waited for this. Watching the world wake up from history! Right here. Right now."

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    37. Re:Fuel economy ? by Anonymous Coward · · Score: 0

      The road trains being discussed are not linked mechanically-- only electronically to keep them moving as one unit closely drafting in a line.

    38. Re:Fuel economy ? by Anonymous Coward · · Score: 0

      And, don't forget: If you floor it to get in front of everyone, then get beside some guy driving 15 under the limit and pace him, no matter how much of a loser you are, everyone else is a bigger one.

    39. Re:Fuel economy ? by stewbacca · · Score: 1

      What's this? The average NASCAR fan knows more than the average slashdot fan? You smart guys on here seriously didn't know that the front car of a draft also benefits from the draft? This is especially true when you have a giant spoiler on the back, designed to push your car down...when another car gets close behind you, it lifts the air of the spoiler and decreases drag...of course you know have less control of your high speed vehicle, but as my favorite saying goes, "engineering is all about tradeoffs" (or something like that).

    40. Re:Fuel economy ? by stewbacca · · Score: 1

      Woah. A software analogy in a discussion about cars...that's gotta be a first around here.

    41. Re:Fuel economy ? by IndustrialComplex · · Score: 1

      Ahh thanks, the term 'train' tripped me up, something like an automated-convoy seems more appropriate.

      Though being able to set up some sort of mechanical linkage with a semi would be kind of cool.

      You drive behind a semi, pull all the way to its bumper and click together like an actual train car. Put your car in neutral and let the truck driver handle it. Make the mechanical linkage robust enough to maintain the separation between your car and the truck if he slams on his brakes...

      And the best part:

      Include some sort of electrical connection that passes brake signals to your own signals, AND a transfer of data to the truck of your EZ-Ride account number. The truck then bills you per mile that you are attached to offset his additional fuel costs and wear and tear plus a 10% fee he keeps.

      --
      Out of modpoints but really liked a post? 1BDkF6TtmmeZ3yqXbz9yhdYVqRYnwFoXDj
    42. Re:Fuel economy ? by wvmarle · · Score: 1

      This drag effect I don't think is big as the cars need significant distance (cyclists are driving often with no distance in between, if not overlapping each other). And cars are highly aerodynamic these days meaning relative less drag than a cyclist.

      There is however a great fuel effect to be expected from the fact that these cars are not stuck in a traffic jam (thus wasting fuel by idling), and because they keep a very constant speed.

  6. Mis-application of technology by tomhudson · · Score: 1, Insightful

    The system is designed primarily at cutting fuel consumption, travel time, and congestion.

    A better application of technology would be to cut the need for travel via telecomumting, telepresence, etc.

    the big problem is that management doesn't have that much of a clue as to how to measure job performance and "manage people" w/o the presence of warm bodies, and when we come up with real metrics and methods, most managers would quickly become redundant.

    1. Re:Mis-application of technology by carvalhao · · Score: 1

      Although I agree that for some jobs that is a clever alternative and the almost eventual future, there will always be a lot of jobs that require the warm body around (medical, teaching and the likes). So yes, we should invest in reducing the need to commute but also in making the process as efficient as possible when we don't have a alternative.

    2. Re:Mis-application of technology by starglider29a · · Score: 1

      Maybe. But most jobs require people to be there, and those of us who support those people must "be there", too.

      Anything which helps the commuters is welcome. Even if I don't use the train thingy, I'll have 8 people under the control of a highly-skilled, licensed driver. AND NOT in "texting while driving partial control" of their vehicle. THAT is an improvement.

    3. Re:Mis-application of technology by Anonymous Coward · · Score: 0

      I personally like going into work. Yes, I have the ability to VPN in, but being in the office removes so many distractions, puts me in the right state of mind, and even though I am in a building full of about 1000 IT workers I still have at least one meeting per day, and it is so much more productive to have everyone there in person then to have to communicate over teleconference or screen sharing.

      Now if we all had teleprecence rooms then I would say you are absolutely right, but until that day comes I will commute to the office. But I guess in the end it is just a personal preference.

    4. Re:Mis-application of technology by Neil+Watson · · Score: 1

      I would surmise that if such a large quantity of people could work via telecommuting those people that still must commute could do so very efficiently because of traffic reduction.

      Autonomous or semi-autonomous vehicles are a worthy goal but as the parent post points out if a significant portion of the population were permitted to telecommute traffic gridlock and associated pollution would plummet. There are also other benefits to this situation. Shorter commutes mean happier people. Combined with cleaner air health care costs would drop.

      I've spent time telecommuting. Having an extra one to three hours of extra time in the day is liberating.

    5. Re:Mis-application of technology by moderatorrater · · Score: 1

      Communication benefits greatly from gestures, facial cues, and subtle tone changes that can't be transmitted as well if they can be transmitted at all over a digital medium. For instance, if I were to say this in person, the meaning would change drastically depending on whether I was yelling while flipping you off or talking in a relative monotone. Digital communication can't fully replace face to face conversation, so it makes sense that in communication-rich environments telecommuting would be discouraged.

    6. Re:Mis-application of technology by natehoy · · Score: 1

      "telecomumting" = growing flowers remotely?

      All humor aside, agreed.

      Except there are a LOT of jobs that require personal presence, and carpooling has its limits.

      --
      "This post contains words, known to the State of California to cause thought. Wash brain thoroughly after reading."
    7. Re:Mis-application of technology by smallshot · · Score: 1

      telecommuting is not for everyone though, this can be for everyone who does not or cannot telecommute.

      I think it's a brilliant application. I'm not so sure the fuel consumption, travel time, and congestion are the greatest benefits. But imagine telecommuting from your car, getting in an extra hour or more of work every day instead of spending it driving. you could go home earlier, or just get more done in one work day. It would even allow people to commute greater distances without feeling like half their day was wasted. Or you could catch up on some sleep... as long as it's not illegal.

    8. Re:Mis-application of technology by tomhudson · · Score: 1

      Although I agree that for some jobs that is a clever alternative and the almost eventual future, there will always be a lot of jobs that require the warm body around (medical, teaching and the likes).

      Surgery has already been done via telepresence. It's also going to play a bigger role in the future in the military and emergency and hazardous situations.

      Teaching is especially amenable to distance learning - and that's what's happening all over the place - talk to any university student today and ask them if they can pass w/o an internet connection for assignments, etc - telecommuting to class will be the norm for the next generation.

      And of course, there are some situations where telepresence is already the best solution - like bomb squads, nuclear fuel handling, etc.

    9. Re:Mis-application of technology by tomhudson · · Score: 1

      I personally like going into work. Yes, I have the ability to VPN in, but being in the office removes so many distractions, puts me in the right state of mind, and even though I am in a building full of about 1000 IT workers I still have at least one meeting per day, and it is so much more productive to have everyone there in person then to have to communicate over teleconference or screen sharing.

      I found it to be the exact opposite. Too many distractions from co-workers, too much LACK of effective communications because people would sit around in meetings and talk/bullshit their way through stuff instead of properly writing it out, thinking it through, and documenting the whys and hows for their reasons. 3 rules: Put it in writing. Put it in writing. Put it in writing. But meetings tend to be excuses for lazy people to avoid thinking efficiently. I refuse to sit in any meeting where someone has a powerpoint presentation. I can read - don't waste my time making me listen to you lip-synching to your idiotgraphs because you never learned how to write effectively and need to put everyone into a brain-numbed state.

      They come up with the stupidest things, stuff that, if they actually had to put it in a proper format, properly documented with references, they'd delete it after the first or second draft. but no, pretty pictures and bullet points instead of proper research and hard numbers. I would leave, come back when they're finished, and STILL demolish it in the first couple of minutes. Them: "You're so negative!" Me: "You obviously didn't spend 10 minutes researching this r you'd know it's been done a dozen times before, it's not some new idea. And your projections are pure wishful thinking, and have no basis in reality." What a waste.

      Most meetings simply aren't necessary, and most of the time is spent in CYA (CoverYourAss) or JMJ (JustifyMyJob). Additionally, creative work sometimes needs solitude, rather than "I have to lok like I'm working, so I can't take time to do any really deep thinking." That's just f*ed up, but it's the way it is.

    10. Re:Mis-application of technology by tomhudson · · Score: 1

      Maybe. But most jobs require people to be there, and those of us who support those people must "be there", too.

      [citation required]

      Most jobs, with the right technology, don't require the physical presence of people.

      We just aren't there yet. Sure, some of the technology is lacking, but it's more a matter of willingness.

      Most jobs that require people to consult with each other can be switched to telecommuting. We already have this for dangerous offenders and their court appearances. Also for education, surgery, some police work, call centers, etc.

      We're supposed to be high-tech people, and yet we resist adopting high-tech solutions. Why do we still insist on wasting 20% of our time going to and from work? It's stupid, especially in this industry.

    11. Re:Mis-application of technology by jonbryce · · Score: 1

      The expert surgeon does sometimes do it that way, but you still need the nurses in the operating theatre following the instructions. It is useful because it isn't feasible for every village hospital to have surgeons who are experts in every single area of surgery, but they can call upon the relevant expert; but every village hospital is still going to need nurses to physically move the unconscious patient around and so on.

    12. Re:Mis-application of technology by tomhudson · · Score: 1

      Communication benefits greatly from gestures, facial cues, and subtle tone changes that can't be transmitted as well if they can be transmitted at all over a digital medium. For instance, if I were to say this in person, the meaning would change drastically depending on whether I was yelling while flipping you off or talking in a relative monotone. Digital communication can't fully replace face to face conversation, so it makes sense that in communication-rich environments telecommuting would be discouraged.

      People's experience with TV and movies would disagree with you. Why can't gestures, facial cues, and tone changes be transmitted over a digital medium? Or is my TV an example of futuristic technology that I somehow got in a time warp? And hasn't the web cam been invented yet? And audio over the Internet? Maybe I should go out and patent it ...

    13. Re:Mis-application of technology by tomhudson · · Score: 1

      "telecommuting" = growing flowers remotely?

      Why not? With the right waldos and other equipment on the other end, there's no reason why you couldn't do everything required, from checking for bugs to bundling up orders for shipping to watering to cutting and chilling, and maintaining the equipment - and this would mean that even people who are allergic to pollen or are hypersensitive to fragrances could work there.

    14. Re:Mis-application of technology by tomhudson · · Score: 1

      The point is that there are lots of jobs that can be at least partially moved to either a telepresence or telecommute. Moving patients from floor to floor is something that can be completely automated.

      Imagine being able to "see the doctor" without having to actually go to the hospital or clinic and wait wait wait around other sick people. Basic monitoring equipment (blood pressure, heart rate, blood sugar, temp) can be in every home for under $100.00. Heck, they're making the heart monitor into a gaming accessory. Web cams are so cheap they might as well be free.

      We already do something like this over the phone, telling people if they should come in or not. This would just make it more effective in screening out false positives.

    15. Re:Mis-application of technology by mcgrew · · Score: 1

      A better application of technology would be to cut the need for travel via telecomumting, telepresence, etc.

      Except that most people who actually create wealth -- plumbers, electricians, carpenters, cooks, bartenders, etc., CAN'T telecommute.

    16. Re:Mis-application of technology by tomhudson · · Score: 1

      A better application of technology would be to cut the need for travel via telecomumting, telepresence, etc.

      Except that most people who actually create wealth -- plumbers, electricians, carpenters, cooks, bartenders, etc., CAN'T telecommute.

      With the right telepresence equipment, plumbers, electricians, carpenters, cooks, etc., CAN telecommute.

      As can doctors, firemen, police, soldiers, stock boys, mechanics ... teachers, students, programmers, customer service reps, etc.

      Heck, with proper animatronics, even the bartender, the stripper and the prostitute could telecommute. Which leads to the question - if it's via telepresence and animatronics, is prostitution illegal?

    17. Re:Mis-application of technology by mcgrew · · Score: 1

      How can you stock shelves, fix a broken sink, pour beer and mix drinks, or FUCK by telepresence? How can you fight a fire with telepresence? I think you're confusing telepresence with telekenesis.

      Phone sex is no substitute for the real thing.

    18. Re:Mis-application of technology by moderatorrater · · Score: 1

      People's experience with TV and movies would disagree with you.

      Incorrect. TV and movies require different emoting to get the same thing across and have dozens of people who back it up to make sure that everything goes through. The best possible alternative over the internet is full audio and webcam, and that's still not nearly as good as face to face communication. The movements within the webcam aren't natural; either the head moves unnaturally within the frame, or the frame moves with the head and is still unnatural.

      However, I doubt the company and the employee are going to give up the bandwidth to do their communications over webcam all the time. Usually, the amount of email and IM chatter goes up, which is vastly inferior to face to face communication.

    19. Re:Mis-application of technology by tomhudson · · Score: 1

      How can you stock shelves, fix a broken sink, pour beer and mix drinks, or FUCK by telepresence? How can you fight a fire with telepresence? I think you're confusing telepresence with telekenesis.

      I guess you don't know the difference between telecommuting and telepresence. Look them up. Doctors have performed surgery via telepresence. Police disarm bombs via telepresence.

      http://en.wikipedia.org/wiki/Telepresence#Manipulation

      Manipulation

      The ability to manipulate a remote object or environment is an important aspect of real telepresence systems, and can be implemented in large number of ways depending on the needs of the user. Typically, the movements of the user's hands (position in space, and posture of the fingers) are sensed by wired gloves, inertial sensors, or absolute spatial position sensors. A robot in the remote location then copies those movements as closely as possible. This ability is also known as Teleoperation.

      The more closely the robot re-creates the form factor of the human hand, the greater the sense of telepresence. Complexity of robotic effectors varies greatly, from simple one axis grippers, to fully anthropomorphic robot hands.

      Haptic teleoperation refers to a system that provides some sort of tactile force feedback to the user, so the user feels some approximation of the weight, firmness, size, and/or texture of the remote objects manipulated by the robot.

      You can apologize now.

    20. Re:Mis-application of technology by tomhudson · · Score: 1

      However, I doubt the company and the employee are going to give up the bandwidth to do their communications over webcam all the time. Usually, the amount of email and IM chatter goes up, which is vastly inferior to face to face communication.

      Bandwidth is so cheap it's virtually free.

      As for email and IM going up, this is a "Good Thing!" Get people to put their thoughts into writing, and maybe they'll be less likely to issue so many brain farts (though slashdot appears to contradict that hope ...)

      I don't need full fidelity real-time audio-visual communications to be able to set out what I'm thinking. The written word is good enough. Anyone who can't put their thoughts coherently into a written format shouldn't be managing other people anyway. 50 years ago, it might have been different, but today basics such as email are a necessary skill for most businesses. We have too many "managers" who can't even write a coherent 2-page letter, and who, if they had to commit their "managing" to writing, would leave a blatantly obvious trail pointing to their incompetence.

      The first 3 rules in business are still:

      1. get it in writing
      2. get it in writing
      3. get it in writing

      Let us know when that changes, and we'll reopen the issue.

    21. Re:Mis-application of technology by mcgrew · · Score: 1, Insightful

      Robotics is going to have to make some great strides (especially in cost cutting) before much of that's possible. Yes, doctors can use telepresence, but I'd personnaly want him to be there if I'm being operated on and I think the doctor would agree. Telepresence for doctors is useful in circumstances when the doctor can't be there.

      Yes, there is such a thing as teledildonics, but again, it's no substitute for sex. For bartenders you might as well do away with the bartender altogether and have vending machines. I doubt I'd visit such a bar. You couldn't fix a sink with telepresence; the robot would have to be in the house. If you have to transport the robot you might as well transport the plumber. Same with police, construction workers, and firemen.

      It's simply infeasable for most jobs.

    22. Re:Mis-application of technology by tomhudson · · Score: 1

      You couldn't fix a sink with telepresence; the robot would have to be in the house. If you have to transport the robot you might as well transport the plumber.

      And what's the problem with that? A plumber could fix 3 sinks in the time it takes to travel to one, bill by the job, and PROFIT. The robots' rate in transit is lower.

    23. Re:Mis-application of technology by mcgrew · · Score: 1

      How would that save energy and transportation costs, which were your argument for telepresence?

    24. Re:Mis-application of technology by tomhudson · · Score: 1

      How would that save energy and transportation costs, which were your argument for telepresence?

      For example, the telepresence unit could already be standard equipment in the home, just operated by the professional who has the particular expertise. So - plumber, electrician, dog-walker, home care worker, elderly assistant, whatever.

      Or units could be like taxi cabs - they could have a local stand where they're parked and recharged when not needed.

      Use your imagination. There are plenty of ways this can work.

    25. Re:Mis-application of technology by mcgrew · · Score: 1

      Look, you're ignoring the fact that you're NOT going to have a robot plumber in your house, nor one on every corner. You don't often need a plumber or electrician, and having a robotic one at all times is NOT going to be cost effective, plus you negate the carbon footprint of manufacturing all those devices that will only be used every ten years or so.

      Whether the robot travels to your house to fix the sink, or the plumber himeself, it's the same amount of energy required to transport either the plumber or the robot. Actually the robot will probably take more, because it will weigh more than the plumber.

      The trouble is you're using too much imagination and too little logic. I can imagine flapping my arms and flying to the moon, but it's not going to happen.

  7. Funny coincidence by dkleinsc · · Score: 4, Funny

    The plan is called "Sartre". My first reaction: What if there's No Exit?

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    1. Re:Funny coincidence by trb · · Score: 1

      Hell if I know.

    2. Re:Funny coincidence by natehoy · · Score: 3, Insightful

      Hell, apparently, is other drivers.

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    3. Re:Funny coincidence by dkleinsc · · Score: 3, Funny

      Any resident of Chicago or Boston would agree with that, I'm sure.

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    4. Re:Funny coincidence by Hurricane78 · · Score: 1

      I read it as "Satire". And even in your comment I had to look twice...

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  8. Does not compute by grozniy · · Score: 0

    Talk about a massive pile ups when hackers get into the software controlling the platoons. Professional driver of the lead vehicle may also cause problems while texting, drinking coffee and reading a newspaper all at the same time. Also, defeats the purpose of having a car - driving on your own... If you want to be in this type of a setup, take a train.

  9. Tailgating to the max by Saryn · · Score: 2, Insightful

    This seems like it could be pretty bad if there was an accident.

  10. road trains are stupid. by girlintraining · · Score: 4, Interesting

    You're handing control over to another driver, who may very well decide not to brake and cause a five car pileup, or worse. Also, there's no way to know the mechanical status of the vehicle -- what if one of them blows a tire, or runs out of gas, or the engine seizes?

    What you should do is create a dedicated lane that is controlled entirely by computer, and you program your exit/entry point at that time, and let the signal and control computers handle traffic management. If an unauthorized vehicle enters the lane, sensors will immediately detect it, alert nearby drivers (and disengage), and send the police to go catch captain speedy pants and send him to a pants-down facility. Computers also do a much better job of fuel consumption and control... I mean, it'd basically be a packet-switched network, but with cars instead of pieces of data. It's a relatively benign IT problem.

    As well, vehicle breakdowns would be handled a lot better because the system would be tied directly to the onboard computer and navigation systems: Just like lorries/semi-trucks operating on the road today. Having spoken to a commercial truck driver, I can tell you that the computer often knows about mechanical problems before the driver does, and their systems are pre-programmed to alert a dispatcher, who will send a rescue/repair vehicle out in situ.

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    1. Re:road trains are stupid. by Finallyjoined!!! · · Score: 1

      I remember reading that induction loops were placed under Motorways (Freeways) in the UK in the 50's, to allow remote control of vehicles using the road. M4 is in the front of my mind, but I could be wrong.
      Sodding problem is I can't find any reference to it :-(

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    2. Re:road trains are stupid. by mdmkolbe · · Score: 1

      there's no way to know the mechanical status of the vehicle

      the computer often knows about mechanical problems before the driver does

      So which is it?

    3. Re:road trains are stupid. by blankinthefill · · Score: 1

      What you should do is create a dedicated lane that is controlled entirely by computer, and you program your exit/entry point at that time, and let the signal and control computers handle traffic management. If an unauthorized vehicle enters the lane, sensors will immediately detect it, alert nearby drivers (and disengage), and send the police to go catch captain speedy pants and send him to a pants-down facility. Computers also do a much better job of fuel consumption and control... I mean, it'd basically be a packet-switched network, but with cars instead of pieces of data. It's a relatively benign IT problem.

      Yeah, but remember, packet collisions are an ingrained part of network management. Makes the idea a BIT more scary :P

    4. Re:road trains are stupid. by schnikies79 · · Score: 1

      I've seen at least half-a-dozen deer on the roads in the last couple of weeks. How is this going to work when one decides to run right through the middle of the train?

      No chance in hell I would be a part of this.

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      Gone!
    5. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      So you want a dedicated lane, which won't be built until you have participants, but you won't get your dedicated lane until there are participants. Classic chicken and egg stuff.

      These folks have actually thought of a way out of that trap. It only requires that the participants have special equipment - it can grow from something small, and then maybe have dedicated lanes some day.

      From something smalll ... just like your sig says ...

    6. Re:road trains are stupid. by swillden · · Score: 3, Interesting

      I've seen at least half-a-dozen deer on the roads in the last couple of weeks. How is this going to work when one decides to run right through the middle of the train?

      Well, I imagine what would happen is that the driver about to hit the deer would brake hard. The computer would relay this braking information to the following vehicles so they would all brake at very nearly the same instant. The problem that arises is that different vehicles have different braking capabilities, so if the vehicle about to hit the deer can brake harder than one of the vehicles coming behind, then we'd end up with a collision, maybe even a chain of collisions.

      Ideally, the vehicles in front should have their braking artificially limited so that it doesn't exceed the braking ability of any following vehicle. If that were done, then the computers could ensure that collisions in the train don't happen.

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    7. Re:road trains are stupid. by schnikies79 · · Score: 1

      You assume they would paying attention. From the article:

      "Those in following vehicles could take their hands off the wheel, read a book or watch TV, while they travel along the motorway."

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      Gone!
    8. Re:road trains are stupid. by 0123456 · · Score: 1

      If that were done, then the computers could ensure that collisions in the train don't happen.

      Of course that makes collisions worse with any vehicle or obstruction in front of your 'train'... like, say, some wacko terrorist who steals a truck and then slams on the brakes in front of you.

      This whole 'road train' idea is just stupid for so many reasons that I'm surprised that anyone other than 'private transport is evil' commies keep trying to defend it.

    9. Re:road trains are stupid. by vlm · · Score: 0, Troll

      You're handing control over to another driver, who may very well decide not to brake and cause a five car pileup, or worse. Also, there's no way to know the mechanical status of the vehicle -- what if one of them blows a tire, or runs out of gas, or the engine seizes?

      Seems the trial lawyers will make a lot of money. Or perhaps the end users get screwed. Or, most likely, both?

      What if the "lead driver" rides the brakes, thus smoking my brakes/warping my disks?

      What if something falls off / out of a car ahead of me (a more common occurrence than you'd think), can I quickly escape the train, and who is liable when by design I can not?

      What if the guy in front of me is one of those smokers whom flicks ashes all over my car ventilation system? Bonus points if I'm allergic / asthmatic? Or an unmaintained beater pumping my car full of particulates, unburned hydrocarbons, and carbon monoxide? I bet an unmaintained diesel could literally kill someone, maybe not the driver, maybe a passenger, maybe a sleeping baby... What if a driver in the train passes out from the CO fumes, or has a heart attack or whatever, is everyone in front of him just dead meat when he plows into them?

      What if the lead driver successfully goes thru a big puddle, flooding my intake and blowing my engine, and then I'm crashed into by the remainder of the train?

      What if its typical winter weather conditions, with patches of ice/snow, my car is ordered to brake, but I spin out of control into other vehicles because my individual car was on a patch of snow/ice/sand at that instant? Or just simply plow into the vehicles in front of me, whom can't accelerate out of the way because they are now temporarily on an icy patch?

      What if, being the ridiculously hyper-paranoid USA, the lead vehicle is a terrorist/rapist/pedo/filesharer (according to my TV, aren't they all the same?)

      What if, the lead vehicle routes us thru an area that is ethnically incorrect, and the police pull me over (the crime of Driving While Black in a White Neighborhood, etc).

      What if a vehicle is carjacked while in a train, is the lead vehicle liable? What if the lead vehicle was working with the carjackers?

      What if the lead driver drives over a pothole fast enough to set off my airbag, but not his?

      What if the lead vehicle makes a minor traffic error that results in no physical problems, but some legal problems? Like not slowing down for an unmarked speedtrap? Everyone gets a ticket, only the lead, maybe the system designer or manufacturer or dealership? Who pays for the higher insurance?

      I would think adding this feature would result in a spectacular car insurance bill...

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    10. Re:road trains are stupid. by cdn-programmer · · Score: 1

      I mean, it'd basically be a packet-switched network, but with cars instead of pieces of data. It's a relatively benign IT problem.

      What a great idea! Why not simply have Mr Speedy Pants organized into a packet that gets lost in transmission? The one that gets resent after the NAK can look alike but its still a new packet but perhaps without the hidden corruption!

    11. Re:road trains are stupid. by Arthur+Grumbine · · Score: 5, Funny

      I mean, it'd basically be a packet-switched network, but with cars instead of pieces of data.

      Hey! Here on /. we use car analogies to explain computer technology - not vice-versa!!

      --
      Now that I think about it, I'm pretty sure everything I just said is completely wrong.
    12. Re:road trains are stupid. by swillden · · Score: 1

      You assume they would paying attention

      If they aren't paying attention, and don't brake, then there's even less problem. They'll be moving a little faster when they hit the deer, true, but generally the amount of braking you can do in such a situation doesn't make much difference anyway, and that way the vehicles behind won't have to worry about braking hard.

      The vehicle that hit the deer will be badly damaged and have to come to a stop, but it won't be such a rapid stop that the rest of the train behind it can't slow.

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    13. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      A deer is not going to cross in the MIDDLE of a train.

    14. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      Luckily, freeways are designed to be full duplex, which creates a collision-free environment. ..in theory :)

    15. Re:road trains are stupid. by swillden · · Score: 1

      Of course that makes collisions worse with any vehicle or obstruction in front of your 'train'... like, say, some wacko terrorist who steals a truck and then slams on the brakes in front of you.

      It's possible. I expect that the lives saved by road trains, since issues of driver error would be largely removed, would vastly exceed those who might be killed by such events.

      This whole 'road train' idea is just stupid for so many reasons that I'm surprised that anyone other than 'private transport is evil' commies keep trying to defend it.

      I think it's a brilliant idea, and have thought so for years. I think it offers a way to get most of the benefits of public transportation while retaining the flexibility of private transportation.

      Once the road trains get dedicated lanes, you can even start ramping the speeds up. If the trained vehicles are packed closely enough, you could move the train along at 100+ MPH more efficiently and more safely than all of the individual vehicles at 60 MPH.

      And it would really, really be nice to be able to make large parts of long-distance trips in your private vehicle but without having to pay attention to driving. There are lots of obstacles to be overcome to make that really practical, certainly, but I think they can be addressed.

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    16. Re:road trains are stupid. by Nerdfest · · Score: 2, Informative

      Not necessarily true. I've seen a deer run straight into the side of a car stopped in a traffic jam. They're unpredictable when panicked.

    17. Re:road trains are stupid. by Nerdfest · · Score: 1

      Why a deer was stopped in the middle of a traffic jam, I'll never know

    18. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      You assume they would paying attention. From the article:

      "Those in following vehicles could take their hands off the wheel, read a book or watch TV, while they travel along the motorway."

      So it would be safe to text while driving?

    19. Re:road trains are stupid. by Quothz · · Score: 1

      A deer is not going to cross in the MIDDLE of a train.

      Well, sure, but let's give Schnickies the courtesy of treating it as shorthand for a class of accidents. The overpass suicide, the drunk driver swerving in from another lane, the giant tumbleweed, the falling rock, and so forth. A deer in mid-train is a bit of a stretch, but there's any number of obstacles that could appear behind the lead car. It's a reasonable enough issue, if a poor choice for the specific case.

    20. Re:road trains are stupid. by Capt.DrumkenBum · · Score: 1

      I can tell you that the computer often knows about mechanical problems before the driver does.

      Your car has a computer in it? Mine doesn't, unless you count my laptop sitting in the trunk.
      My previous car had computers to control everything. I hated it. It was impossible for me to fix if it broke, so I had to take it to a mechanic. Now my car (1989 Jeep Wrangler) has no computers, and I understand every single part of it, and can fix anything.

      --
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    21. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      While Ethernet uses Carrier Sense/Collision detection, Wifi uses Carrier sense/Collision avoidance.
      The clients asks the Access point permission to transmit.

      Presumably, vehicles would ask the central computer permission to enter the stream of traffic.

    22. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      Yes and what about the 90% of the time when the sensor has failed before the part does. Then we get stoppages in traffic every time a check engine light pops on because an emissions sensor went bad.

      Also: Computers also do a much better job of fuel consumption and control

      Yes that may be true but I bet you that the rules are not going to be set by mathematical efficiency formulas, they will be set by politicians who believe the idiots who say you get better fuel consumption cruising at 35mph (1500 RPM) than you do at 70mph (2600RPM) much closer to the power peak of the engine. Until the people in charge of the system gain a basic knowledge of physics and the mechanics of the internal combustion engine the system will be flawed.

    23. Re:road trains are stupid. by pwfffff · · Score: 3, Insightful

      "What if the "lead driver" rides the brakes, thus smoking my brakes/warping my disks?"

      You do know that the default state of most cars is 'slowing down', right?

      "What if something falls off / out of a car ahead of me (a more common occurrence than you'd think), can I quickly escape the train, and who is liable when by design I can not?"

      Yes. The same person that would have been liable if the exact same thing happened today. And that's a stupid question, isn't it? Do you really think it will be designed as a death trap? Do you not think anyone working on this will have your sagacity and forethought? Where in the plans did you see 'Ensure vehicles have NO ESCAPE (muahahaha)'?

      "What if the guy in front of me is one of those smokers whom flicks ashes all over my car ventilation system? Bonus points if I'm allergic / asthmatic? Or an unmaintained beater pumping my car full of particulates, unburned hydrocarbons, and carbon monoxide? I bet an unmaintained diesel could literally kill someone, maybe not the driver, maybe a passenger, maybe a sleeping baby... What if a driver in the train passes out from the CO fumes, or has a heart attack or whatever, is everyone in front of him just dead meat when he plows into them?"

      OK, so you don't like highways. We get it. This isn't meant to solve any of the personal problems you have with cars. It's to make the method of travel slightly more convenient and slightly more efficient. All of those things are issues today, and would not be made worse.

      "What if the lead driver successfully goes thru a big puddle, flooding my intake and blowing my engine, and then I'm crashed into by the remainder of the train?"

      Last time I went through a puddle there wasn't a tidal wave behind me.

      "What if its typical winter weather conditions, with patches of ice/snow, my car is ordered to brake, but I spin out of control into other vehicles because my individual car was on a patch of snow/ice/sand at that instant? Or just simply plow into the vehicles in front of me, whom can't accelerate out of the way because they are now temporarily on an icy patch?"

      You're the stupid kind of brave if you don't already fear these things on TODAY'S ROADS.

      "What if, being the ridiculously hyper-paranoid USA, the lead vehicle is a terrorist/rapist/pedo/filesharer (according to my TV, aren't they all the same?)"

      Then you'll never know or care. Stupid question.

      "What if, the lead vehicle routes us thru an area that is ethnically incorrect, and the police pull me over (the crime of Driving While Black in a White Neighborhood, etc)."

      Your post isn't even amusing, it's just painful.

      "What if a vehicle is carjacked while in a train, is the lead vehicle liable? What if the lead vehicle was working with the carjackers?"

      They'll jack a parked car instead, you dumb piece of shit.

      "What if the lead driver drives over a pothole fast enough to set off my airbag, but not his?"

      Then that sucks for you.

      "What if the lead vehicle makes a minor traffic error that results in no physical problems, but some legal problems? Like not slowing down for an unmarked speedtrap? Everyone gets a ticket, only the lead, maybe the system designer or manufacturer or dealership? Who pays for the higher insurance?"

      What if you had actually thought about the bullshit you asked and tried to determine if it was a valid question or if it instead tried in vain to disingenuously prove a point?

    24. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      I'm sure no engineer remotely involved in the project has ever thought of those damn obscure issues only your keen observation skills could ever notice, eagle-eye.

    25. Re:road trains are stupid. by Culture20 · · Score: 1

      The obvious solution is to tie drivers licenses with hunting licenses, add turrets on to every car, and make it legal to shoot deer from the car train. No one is allowed to mention buffalo in rebuttal.

    26. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      Let's just hope Dlink doesn't manufacture the "routers" for this car-based packet network, as losing packets could have some rather dire consequences ;)

    27. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      I don't know where you live that you have suicidal deer.... but everywhere else, the deer don't run into the middle of packs of cars. They wait until there aren't any cars and then stop in the middle of the road. The lead car is by FAR the most likely have to deal with deer or other animals.
       
      Given the technology ALREADY in most cars, all you'd have to add is a simple forward and rear facing distance sensor, and link it to the control link, along with the onboard computer that already controls the brakes. Similar to what the top luxury cars are already using. Hell, BMW has a car that once you drive it around the track one time, it can drive itself around the track just as fast, kind of a fun episode of top gear if you get a chance to see it.
       
      Now when one car suddenly brakes, all the cars behind it brake at equal speed, and if they can't, the one in front partially releases it's brakes to avoid a rear end collision. It's also trivial to require each car in the train to do a calibration test on the road to find it's braking speed. The onboard computer can already do it. And it probably already knows most of the information need to calculate this anyway. If it doesn't, you just run the car up to 60, and slam on the brakes. Letting the computer handle the braking, and record time and distance. (things it does anyway) The only time this becomes scary is when the road conditions are bad, ie ICE/Rain/whatever. Mainly because you can't expect uniform conditions between cars on different patches of pavement. Ice doesn't form in solid sheets, and rain is displaced differently by different tires and car weights especially if you are following very close.
       
      The concept they have is good, but it should have it's own dedicated lane to make it much, much safer. Even further, they should just require all new cars to have certain autodrive features. Like collision avoidance and basic traction control and onboard diags. Most nicer cars already do anyway, and if you still want to have super cheap cars, you can ban them from freeways/highways during rush hour.

    28. Re:road trains are stupid. by evilviper · · Score: 1

      I mean, it'd basically be a packet-switched network, but with cars instead of pieces of data. It's a relatively benign IT problem.

      Congestion control becomes a much scarier problem...

      While I would certainly stop driving on the freeways at that point, I can see it being a major spectator draw to stand at the side of the freeway around rush hour, watching the bulldozers idling at the side of the road, and waiting to see which random car they pick to knock into the ditch to reduce congestion, TCP buffer style.

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    29. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      "the vehicles in front should have their braking artificially limited so that it doesn't exceed the braking ability of any following vehicle"

      DNRA

      So you're going to sacrifice the front end of the lead car because the driver happened to spend extra dough on a car with 17" Brembos (for example)? What if the lead car is the only one that can stop in time to avoid the deer? Should he be sent into the deer anyway to absorb the impact and spare the rest of the train? Or, instead of penalizing the people with the most capable cars, how about having stretches of roadway where the car train uses two lanes to bubble sort the car with the least braking power to the front of the line? Sure the most capable cars will drop to the rear of the train, but they're also the ones who are most likely able to stop the quickest and not get rear ended by someone in a hoopdie junker.

      Just have the on board computers monitor the braking abilities of the car over time and participate in a voting system not unlike the Master Browser. Every so often a hard braking scenario will update the computer with the latest stats for use in the next vote. I wouldn't mind riding at the back of the train if it meant that the front 3rd of the train probably won't be able to stop in an emergency braking situation but I will. OTOH, use the same voting system I just proposed to set the spacing. The spacing should increase the farther back you go in a train anyway, but less capable cars will not be authorized to follow at too close a distance no matter where they fit in line just in case an emergency arises.

      Since I DNRA, does the system use the "1 car length for every 10 mph" some incredibly paranoid people use?

    30. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      Actually he assumed you were paying attention to the article, or at least capable of understanding it.

      Clearly the statement "Those in following vehicles could take their hands off the wheel, read a book or watch TV, while they travel along the motorway." implies an automatic control system that would engage the brakes of following vehicles when the lead vehicle applied brakes.

      Just like a BLT sandwich clearly implies bread even though the B in the acronym stands for bacon.

    31. Re:road trains are stupid. by mcgrew · · Score: 1

      You might want to actually read something about it. As soon as one car brakes, all the other ones brake at the same time. Braking is automatic, and there's radar to determine the car in front's deceleration.

    32. Re:road trains are stupid. by swillden · · Score: 1

      Or, instead of penalizing the people with the most capable cars, how about having stretches of roadway where the car train uses two lanes to bubble sort the car with the least braking power to the front of the line?

      I love it!

      Although I think a mergesort would be much more efficient, and it would look really cool from above. It might be fun to write a simulation.

      Since I DNRA, does the system use the "1 car length for every 10 mph" some incredibly paranoid people use?

      No, the whole point is to get the cars very close together so that they're all drafting on one another.

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    33. Re:road trains are stupid. by girlintraining · · Score: 1

      So which is it?

      The other one. :P

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    34. Re:road trains are stupid. by fiannaFailMan · · Score: 1

      "What if the "lead driver" rides the brakes, thus smoking my brakes/warping my disks?"

      This is a European proposal. People in Europe don't generally drive automatics, and they won't know what you're talking about when you say "ride the brakes."

      For the benefit of anyone who has only ever driven manual, "riding the brakes" refers to the braking that is needed to even slightly reduce speed when driving an automatic. Releasing the throttle is usually enough to slow a manual car down, but for some reason automatics want to keep on going and need a bit more persuasion, hence more use of the brake pedal.

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    35. Re:road trains are stupid. by pbhj · · Score: 1

      I mean, it'd basically be a packet-switched network, but with cars instead of pieces of data.

      Hey! Here on /. we use car analogies to explain computer technology - not vice-versa!!

      In Soviet Slashdot ... oh never mind. Where are my hot grits, Natalie?

    36. Re:road trains are stupid. by Tom · · Score: 1

      You're handing control over to another driver, who may very well decide not to brake and cause a five car pileup, or worse. Also, there's no way to know the mechanical status of the vehicle -- what if one of them blows a tire, or runs out of gas, or the engine seizes?

      And the danger is higher on a road train compared to manual driving because of what, exactly?

      It isn't. I'm sure during this research they'll collect the numbers on that, and then some, because they know how much convincing people need to give up control. Because that's what this is about: Control. Not safety. Every "safety" argument against automated driving that I've heard so far isn't actually a safety argument, it's an "I feel safer when I'm in control" argument. Which says nothing about safety, only about feelings and control.

      What you should do is create a dedicated lane that is controlled entirely by computer,

      You already spotted the problem with that. Manual drivers will use that lane, and no, police and penalties won't discourage them (otherwise, there would be nobody speeding).

      I mean, it'd basically be a packet-switched network, but with cars instead of pieces of data. It's a relatively benign IT problem.

      Except that you can't simply re-transmit if you have packet collisions.

      As well, vehicle breakdowns would be handled a lot better because the system would be tied directly to the onboard computer and navigation systems:

      The research already includes onboard computers that are required to join the road train. What makes you think that these things would not be handled by the same computer?

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    37. Re:road trains are stupid. by schnikies79 · · Score: 1

      In highschool a deer jumped over the hood of my GF's car while she was going down the road at 35mph. It didn't quite clear the car and went through the windshield. There was cars in front of her and cars in back.

      Yes they do.

      --
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    38. Re:road trains are stupid. by caywen · · Score: 1

      You're handing control over to another driver, who may very well decide not to brake and cause a five car pileup, or worse.

      I would think the reaction time of braking of all following vehicles would be measured in tens of milliseconds instead of hundreds of milliseconds for the average human driver. I actually might feel more protected from pileup in a road train than on my own (depending on reality, of course).

    39. Re:road trains are stupid. by drinkypoo · · Score: 1

      Having spoken to a commercial truck driver, I can tell you that the computer often knows about mechanical problems before the driver does, and their systems are pre-programmed to alert a dispatcher, who will send a rescue/repair vehicle out in situ.

      You can get this today with OnStar. (Beware buying used; a lot of vehicles are about to drop off the map...) Information from the various onboard computers (including the one for yaw control, when equipped — scroll to the bottom) and of course the SRS (e.g. airbag) sensor is piped to a dispatcher. If your OnStar-equipped (and -subscribed) auto quits on the side of the road someplace with cellular coverage (heh heh) then someone will call you up and get you a tow truck or what have you.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    40. Re:road trains are stupid. by drinkypoo · · Score: 1

      Ideally, the vehicles in front should have their braking artificially limited so that it doesn't exceed the braking ability of any following vehicle.

      Ideally, the vehicles folllowing would follow at a distance based on the delta of their braking ability and that of the vehicle in front of them. This requires the vehicle's equipment to be in good working order, but I don't think many people would be interested in a system like this that didn't also involve safety inspections.

      As has been pointed out repeatedly, there is already a better way to do this, it's called loading cars onto trains. You could add attachment points to [some] existing vehicles and design new ones with them included, strapping down legacy vehicles in the mean time.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    41. Re:road trains are stupid. by swillden · · Score: 1

      Ideally, the vehicles folllowing would follow at a distance based on the delta of their braking ability and that of the vehicle in front of them.

      Assuming that doesn't lead to a following distance so large that the benefits of drafting are lost.

      --
      Note to ACs: I usually delete AC replies without reading them. If you want to talk to me, log in.
    42. Re:road trains are stupid. by drinkypoo · · Score: 1

      Assuming that doesn't lead to a following distance so large that the benefits of drafting are lost.

      That's your problem for having a car with poor stopping distance; you still get to follow closer, meaning more vehicles per mile. Upgrade your brakes (or your car) if you don't like it. Reducing braking ability is not a reasonable option. It would make more sense to mandate cowcatchers.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    43. Re:road trains are stupid. by Wayne247 · · Score: 1

      You see, the road system is not something you can just dump cars on. It's not a big hard drive. It's a series of interconnected data cables.

    44. Re:road trains are stupid. by Anonymous Coward · · Score: 0

      Who shot Bambi?

    45. Re:road trains are stupid. by slim · · Score: 1

      I'm not going to go through your post point by point, but I think this is worth pointing out:

      The proposal is intended for European motorways (like freeways). Smooth, wide, well maintained, multi-lane roads that go from A to B with no stop signals.

      You won't hit a pothole on these roads.

      You won't find significant puddles (OK, you'll get surface water in extreme weather - in which case the whole train will need to slow down pre-emptively).

      You won't hit ice, because it'll be properly gritted.

      You won't get carjacked; the road bypasses populated areas.

      And so on.

  11. Wifi reliability by trimpnick · · Score: 1

    If this thing is as reliable as my wireless router, there will be a lot of accidents

    1. Re:Wifi reliability by Finallyjoined!!! · · Score: 1

      Haha, you bought a Linksys or Netgear, didn't you?

      Quality!

      --
      If I had an Ass, I'd call it Fanny Bottom, then I could slap my Ass; Fanny Bottom, on the Arse.
    2. Re:Wifi reliability by natehoy · · Score: 1

      Yeah, I could see that. Everyone's on channel 6, and every car is called "linksys".

      --
      "This post contains words, known to the State of California to cause thought. Wash brain thoroughly after reading."
  12. Buy it now by wsanders · · Score: 1

    You can already get this tech if you splurge for an S-class Mercedes:

    http://www.benzinsider.com/2008/06/distronic-plus-and-brake-assist-plus-reduce-rear-end-collisions-by-20/

    It would be a cool DIY project, too. Don't tell your insurance company.

    --
    Give a man a fish and you have fed him for today. Teach a man to fish, and he'll say "WHERE'S MY FISH, YOU IDIOT?"
    1. Re:Buy it now by Anonymous Coward · · Score: 0

      It would be a cool DIY project, too. Don't tell your insurance company.

      Not sure that's a good idea. My policy says I must notify the insurance company of any modifications to the vehicle or the policy isn't binding.

    2. Re:Buy it now by Anonymous Coward · · Score: 0

      You can already get this tech if you splurge for an S-class Mercedes:

      http://www.benzinsider.com/2008/06/distronic-plus-and-brake-assist-plus-reduce-rear-end-collisions-by-20/

      It would be a cool DIY project, too. Don't tell your insurance company.

      I don't really want a Mercedes. I bought a Mac and it died after I had only owned it for 2 years. And don't talk to me about Apple Care. I didn't buy it.

  13. Good general idea, but implementation... by Tx · · Score: 1

    FTA: Each road train could include up to eight separate vehicles. [...] The lead vehicle would be handled by a professional driver who would monitor the status of the road train.

    This sounds like a major obstacle to me. One professional, presumably paid, driver to every eight vehicles sounds expensive and pretty impractical. What are they going to do, have you queue up somewhere waiting for one of these lead drivers to come along? I think that's taking the whole "train" analogy too far, one of the reasons I like driving is that I don't have to wait for a damn train. For this kind of thing to really work, I'd have thought the ideal would be not to have a lead driver at all, but to form ad-hoc trains. I.e. vehicles interrogate each other to find out if they're going on the same route, and automatically join the "train". I'd assume that cars with this sort of technology would be speed limited, at least while leading a train, so that shouldn't be an issue.

    Mr Robinson speculated that those joining a platoon or road train may one day pay for the privilege of someone else effectively driving them closer to their destination.

    And a further kicker. As far as I'm concerned, these road trains would be a very diminished driving experience. I expect to pay less in return for helping the environment and reducing road congestion, not more. Give me a reduction in my road tax or something in return for participating, and I might be interested.

    --
    Oh no... it's the future.
    1. Re:Good general idea, but implementation... by FlyingBishop · · Score: 1
      1. In the diagram, the lead driver is a truck, so it seems natural that the cost of the driver would be partially subsidized by shipping. 1:8 isn't that bad a figure for trucks to cars already on the road. So there's already a ready supply of professional drivers, who probably could handle a few cars in tow without too much effort.
      2. Naturally, for this to work, the cost would have to work out to be about half the fuel savings, so you would still profit. You also don't have to do as much driving.
    2. Re:Good general idea, but implementation... by Sique · · Score: 1

      This sounds like a major obstacle to me. One professional, presumably paid, driver to every eight vehicles sounds expensive and pretty impractical.

      No, the driver is not there to wait for cars wanting to form a road train. The professional driver is there because he has to drive the route anyway, transporting freight or whatever. Road trains will be formed spontaneously, when someone decides to join the truck and tailgate it. And as soon as the leading truck is heading somewhere else, you are free to leave the road train again.

      --
      .sig: Sique *sigh*
    3. Re:Good general idea, but implementation... by Al+Dimond · · Score: 1

      So you disengage from the truck so you can make your exit. This dismantles the entire train; you and everyone behind you must space out to normal separation. I have a feeling this could be pretty tricky with more than a couple cars involved, or if there's significant traffic or difficult merges. I'm trying to picture a maneuver like this taking place safely, for example, near the Mannheim exit on the inbound Eisenhower west of Chicago (formerly known as the Hillside Strangler... a few years ago more lanes were added for a couple miles, so now there's an Oak Park Strangler). Or even going outbound, a few miles further out, at the merge with the North-South Tollway... if the train is coming from the tollway and you need to get off at Thorndale Ave.

      You would probably want to know in advance where the train was going to break apart, so you could avoid joining trains that are about to break up anyway. Maybe you wouldn't be allowed to join trains that are going to exit before you.

      It would be a lot less complicated in rural areas... I live in Wyoming now, and when I drive from, say, Cody to Powell, most of the other cars on the road are headed at least as far as Powell. Even back in Illinois, I could see it working on stretches of I-57 between major towns, and especially on the east-west freeways that gets lots of truck traffic.

    4. Re:Good general idea, but implementation... by mcgrew · · Score: 1, Insightful

      I think this is more suited to commercial travel (trucks) and military convoys. If I wanted to have all the inconvinience of train travel, I'd just take a train and get the disadvantages and advantages of riding on a train.

    5. Re:Good general idea, but implementation... by Dare+nMc · · Score: 1

      I think your taking too literal reading of professional. IE any professional driver (read mail delivery, 18 wheeler operator) would be paid some additional amount to become a "Road Train" Engineer. IE they still drive their regular route, so their is no additional people, or equipment on the road. If every, over the road delivery vehicle were to become one; then plenty of options would generally be available to join some train. If the system is smart enough to handle one car gaps for entry/exit, they should be smart enough to hand off between pro drivers as well.
      The issue I see is that a train of 10 cars following that close means the Pro driver would have to have one hell of a clear lane to pass anyone, so that wouldn't happen. So unless special lanes were made available, the number of times this train have to slow down and speed up would consume all the fuel savings, and take longer as well.
      But a special "Road train" only lane could fix that. (but then a breakdown would be all the more consuming, unless mulitple "road train only" lanes were available.

  14. Reminds me of a dream I once had by The+Archon+V2.0 · · Score: 5, Funny
    The scene: A road that was winding its way along a treacherous landscape (think Wile E. Coyote's home turf).

    A generic couple were standing by the side of road, which was basically a piece of flat pavement cut into the side of a mountain. They were watching a garage inventor/scientist type explain his latest invention, a motorized luggage carrier. Sort of a motorcycle sidecar or luggage unit for people who didn't want to change the visual impact of their motorbike. It was an independent unit, had its own motor and fuel, and required only a slight modification to the motorcycle in the form of a radio transmitter. After that, it basically mimicked the motions of the "master" motorcycle.

    Garage inventor gets on his bike, fires it up, and drives off. Sure enough, the other device (which I recall looking a lot like a large cooler on wheels) fired up by itself and followed. A few minutes later, the garage inventor loops back and drives by. Getting cocky, he waves at the couple. Unfortunately, he hits a rock and with only one hand on the handlebars, can't recover. He loses control, and drives off the side of the cliff. An unpleasant "crunch" is heard below.

    Moments later, the motorized luggage holder comes along and dutifully throws itself off the cliff as well. A second "crunch" is heard.

    The couple look down at the carnage and then leave.

    1. Re:Reminds me of a dream I once had by Anonymous Coward · · Score: 0

      Trotting out not only an anecdote, but a fake anecdote, in an attempt to discredit something you don't even understand. Classy!

    2. Re:Reminds me of a dream I once had by Anonymous Coward · · Score: 0

      Having no sense of humour, now that is classy.

    3. Re:Reminds me of a dream I once had by Sponge+Bath · · Score: 1

      ...the motorized luggage holder comes along and dutifully throws itself off the cliff as well

      I actually saw a non automated version of this event happen. Going down a steep hill in Austin Texas, a trailer pulled by an SUV came off the hitch but was still trailing the SUV at high speed. The driver floored it to try and stay ahead.

      What I saw out my office windows was the SUV fly by at warp speed, followed by the now cart wheeling trailer. Somehow the whole thing came to a halt at the bottom with no injuries. The driver got out, looked at the smashed up trailer and said "good thing nobody was standing there".

      To make this ramble on topic, I would say that no matter how fail safe a setup is, there is a human stupid enough to fuck it up.

  15. Deemed to fail by Anonymous Coward · · Score: 0

    Europe can't even standardise on a safety system for trains. Hell, they can't even standardise it in 1 single country. The "Betuwe Line" (A dutch project for a transport railway between Rotterdam Harbor and Germany) got delayed for years due to malfunctioning safety systems. And that's a problem with a very limited amount of parties and other variables involved. How will they ever be able to implement such system for cars. And, more, how will you garantuee the system will actually increase safety, not decrease it by some unexpected side effect.

    The safest car on the road is one that is parked. Invest in teleworking and other ICT infrastructure, not more roads and fancy projects that will never get adopted.

  16. Fail by benjamindees · · Score: 1

    I agree that this is a monstrosity that no one in their right mind would ever want to use.

    But it does seem like a step in the right direction. Instead of carpool lanes which are a stupid waste of time, I'd like to see a major US city devote a lane of all their highways to something interesting like this, only more flexible and safer and automated and efficient and economically beneficial, obviously.

    --
    "I assumed blithely that there were no elves out there in the darkness"
  17. Re:Ummm (use actual trains) by pburt · · Score: 2, Insightful

    Maybe there should be car-carrying trains. Or stop building sprawl. Anyway, actual trains are far more efficient than this could ever be.

  18. Cue product liability lawsuit in 3... 2... 1 by Locke2005 · · Score: 1

    I believe the reason this will never catch has nothing to do with technology and everything to do with legal liability. Who is going to want to be the front car of the train, when they will obviously be responsible for any accidents? What company is going to want to supply this system and open themselves up to massive lawsuits whenever somebody finds a way to defeat the system and cause an accident?

    --
    I've abandoned my search for truth; now I'm just looking for some useful delusions.
    1. Re:Cue product liability lawsuit in 3... 2... 1 by Saryn · · Score: 1

      Who is going to want to be the front car of the train, when they will obviously be responsible for any accidents?

      The car in the front is a professional, probably government employed, driver.

    2. Re:Cue product liability lawsuit in 3... 2... 1 by Dunbal · · Score: 1

      The car in the front is a professional, probably government employed, driver.

            Now I REALLY feel safe...

      --
      Seven puppies were harmed during the making of this post.
    3. Re:Cue product liability lawsuit in 3... 2... 1 by 0123456 · · Score: 1

      The car in the front is a professional, probably government employed, driver.

      Somehow being in a 'train' of a hundred cars with a taxi driver at the front doesn't fill me with confidence.

    4. Re:Cue product liability lawsuit in 3... 2... 1 by el_tedward · · Score: 0

      Who is going to want to be the front car of the train, when they will obviously be responsible for any accidents?

      The car in the front is a professional, probably government employed, driver.

      Even if the car in front is a professional, they're still at a pretty big risk for people suing them if anything that driver does involves a car accident.

    5. Re:Cue product liability lawsuit in 3... 2... 1 by Anonymous Coward · · Score: 0

      Don't you understand? In the harsh world today, the Government is now your friend. Look at all the evil things in this world. The Government protects you from that evil. All those anti-government terrorists and their child seeking bullets. If you buy any products from those other evil countries you'll be poisoned. Without Government, how would you live with your neighbor shooting your house every night? You should really have the Government build a wall around your house so you'll be safe. They'll ration you out some certified healthy food, and provide safe drinking water with medicines and additives and all you have to do is give them all the money you make producing goods for everyone else. They are thinking about just getting rid of money all together and using services provided by the government as incentive to keep contributing. If you don't meet your production quota, you'll just be denied water until you catch up. If you don't catch up, food and electricity will be shut off and your dead corpse will be washed into a mass grave for fertilizer.

    6. Re:Cue product liability lawsuit in 3... 2... 1 by nschubach · · Score: 1

      A train of cars is hardly a car accident... this is a 5:00 news worthy horrific incident. They'll analyze if the driver was a terrorist who drove all the cars into that school intentionally and debate the finer points of how more regulation could help solve incidents like this in the future.

      --
      Every time I start to have faith in humanity, I ruin it by driving to work between 7 and 8 am.
    7. Re:Cue product liability lawsuit in 3... 2... 1 by upside · · Score: 1

      As a generalisation, Europe doesn't have the same lawsuit-happy system as the US. Damages are a lot lower and we don't have punitive damages (apart from the UK).

      http://en.wikipedia.org/wiki/Punitive_damages

      --
      I'm sorry if I haven't offended anyone
  19. Stepping stone to auto pilot? by HangingChad · · Score: 1

    I'm wondering if this is a workable step to an autopilot for cars? I would pay a lot to be able to hook up to a platoon and sleep a good portion of the trip. But it would seem like this might be workable as an interim step to an in-road sensor system.

    The real trick would be making sure the driver was awake before releasing the car from the platoon. And what about the cars behind them? Also don't see how this prevents someone from cutting in between cars in the train.

    --
    That's our life, the big wheel of shit. - The Fat Man, Blue Tango Salvage
  20. I know, right? by TiggertheMad · · Score: 1

    Yeah, think of all the new 'convoy' sequels that we will have to listen to on the radio...

    *shudder*

    --

    HA! I just wasted some of your bandwidth with a frivolous sig!
    1. Re:I know, right? by commodore64_love · · Score: 0

      Here's the remake - http://www.youtube.com/watch?v=JuyLTDAC7fE

      By the way I love "hnndle" here on slashdot.
      10-4
      L8r

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
  21. I was driving ... by PPH · · Score: 3, Funny

    ... on I-94 to Minneapolis, but I fell asleep and missed the exit by 150 miles.

    --
    Have gnu, will travel.
    1. Re:I was driving ... by Anonymous Coward · · Score: 0

      I bet you were really working on your laptop.

    2. Re:I was driving ... by Hurricane78 · · Score: 1

      That reminds me. What If you are in the middle of a continuous road train from here to this summer's favorite holiday location, with the same types of trains on the right and left lanes... and you run out of fuel while asleep?

      --
      Any sufficiently advanced intelligence is indistinguishable from stupidity.
    3. Re:I was driving ... by willworkforbeer · · Score: 2, Funny

      Trust me, you didn't miss anything.

      --
      Pretending this is my office full of bitter coworkers..
  22. Re:Ummm (use actual trains) by plague3106 · · Score: 2, Informative

    Maybe there should be car-carrying trains.

    There already are. What makes you think there aren't?

    Or stop building sprawl.

    And the sprawl that already exists? Face it, its not going anywhere, so you'll have to deal with this issue. Trains aren't really going to work, unless perhaps they make them incrediblly fast.

    Anyway, actual trains are far more efficient than this could ever be.

    Since it's not even deployed, perhaps you should wait before passing judgement.

  23. Train Wreck by smitty777 · · Score: 4, Interesting

    OK - imagine this scenario: a train is driving along, and something happens to car number 2/8. Hit by another car, flat tire, accidentally leans on the joystick, whatever. The car veers out of control, unlinking cars 3-8. So now you have six cars being manned by people who were sleeping/reading/eating/daydreaming 10 nanoseconds ago.

    I'm just sayin, I don't think you could pay me enough to get in one of those trains. Mythbusters did an interesting piece on saving gas by drafting. You could save a great deal of gas, but at great expense to safety.

    --
    "Before God we are all equally wise - and equally foolish"
    Albert Einstein
    1. Re:Train Wreck by a_claudiu · · Score: 1

      Mythbusters doing science. Geek card revoked.

    2. Re:Train Wreck by nutshell42 · · Score: 5, Insightful
      OK - imagine this scenario: a large number of very intelligent specialists work for years on this idea and the necessary tech is implemented in every European car and noone ever thought of the 100% obvious first-problem-any-person-would-come-up-with-when-introduced-to-this-idea problem smitty777 discovered with the vast power of his uber-brain. European roads then become deathtraps, depopulating the continent like it's 1349.

      I'm just sayin, every /. article with new ideas gets swamped by people stating absolutely obvious problems as if the people working on that project were all functionally retarded. I said the same thing just a few days ago but this article really brought the geniuses out of the woodwork like I haven't seen in some time.

      --
      Don't think of it as a flame---it's more like an argument that does 3d6 fire damage
    3. Re:Train Wreck by Tom · · Score: 1

      The Mythbuster episode was manually driven drafting. Yes, that's dangerous. At the speeds involved, a human can not react fast enough on the short distances involved, over a reasonably long period of time (you can do it for short time, but the stress level is high).

      The other point you mention is probably - but you know, I'm just guessing here - one of the reaons they do things like research on these ideas before they throw them out into the wild^H^H^Hroads. Not to mention that in large complex systems, statistics matter more than individual experiences and preferences. Yes, the risk you mention probably exists. If, however, statistically speaking, the danger of something happening to you in a road train is, say, 0.01% per km, while travelling manually means the danger is 0.02% per km, then it is still safer to take the road train.

      The main problem with car traffic is a stupid, ancient emotion of humans, namely that we feel safer if we feel in control. In many cases in modern life, that's no longer true.

      --
      Assorted stuff I do sometimes: Lemuria.org
    4. Re:Train Wreck by kylegordon · · Score: 1

      Human error? You missed the bit in TFA stating "The drivers can relax until they wish to leave the road train, at which point they signal their intention to the driver at the front." I would assume 'signal' != leaning on joystick by accident

      Mechanical error? You missed the bit where you think a driver behind could avoid a wildly spinning car. An extreme mechanical failure is causing a rapid departure from a tight knit train is also unlikely to impact the car directly behind it anyway. More likely to leave car 3 wondering why there's suddenly a big gap in front of it, and a hole in the hedge.

    5. Re:Train Wreck by caywen · · Score: 1

      Would they unlink? I'd think they would sense (or be notified) that the car in front of them is slowing down rapidly and follow suit.

      To me, a bigger deal would be the lead car - a big, burly vehicle designed to withstand major pain - decides to force its way through a big ass pothole. Then one by one, all the followers submit claims to their insurance companies to fix their damaged suspensions.

    6. Re:Train Wreck by Anonymous Coward · · Score: 0

      That was not supposed to happen to car 4, the wheels were supposed to fall off...

    7. Re:Train Wreck by smitty777 · · Score: 1

      Good point, although saying anything negative about this could invoke the wrath of nutshell42 ;^)

      That is a good point - the article doesn't specify really how or when the drivers in the chain could gain control. For that matter, the article doesn't even specify how the cars will be linked together. Some mechanical device? Radio control? Tractor beam? It's hard to say what the problems are without knowing this type of info.

      --
      "Before God we are all equally wise - and equally foolish"
      Albert Einstein
    8. Re:Train Wreck by Anonymous Coward · · Score: 0

      So what are the answers to the genius' questions, genius?

    9. Re:Train Wreck by Anonymous Coward · · Score: 1, Insightful

      riiiight, and the space program never had any failures, and computer programs never have bugs or even crash! Isn't this a wonderful world we live in?

    10. Re:Train Wreck by TBoon · · Score: 1

      Mythbusters did an interesting piece on saving gas by drafting.

      I actually don't think the greatest gas savings would come from drafting, but from being able to travel at a constant speed rather than fluxuating all the time. And higher speeds saves time (and thus money if driving as part of work) as well.

    11. Re:Train Wreck by Anonymous Coward · · Score: 0

      Oh, you wanted answers? He doesn't do those - he's just attempting to look intelligent via tired sarcasm and condescension.

    12. Re:Train Wreck by CubicleView · · Score: 1

      Aside from being a dup apparently, your post is actually a blatantly obvious observation about /. so I guess that sort of makes you part of your own problem. It's annoying to see all the same questions being repeated, but I don't see why people can't discuss the blatantly obvious problems, at least without being patronized.

    13. Re:Train Wreck by WillDraven · · Score: 1

      Shit happens.

      Get over it.

      --
      This is my sig. There are many like it but this one is mine.
  24. I do not think it means what you think it means by Anonymous Coward · · Score: 0

    "require"?

    Medical - http://www.sri.com/esd/med_devel/robotic-systems.html. Since 2000 the FDA has cleared a system for telepresence surgery "for thoracoscopic (chest) surgery, for cardiac procedures performed with adjunctive incisions, and urologic and gynecologic procedures."

    Education - this being slashdot, let's skip over U.C. and the many, similar others who offer long-distance learning options at the undergraduate level and go hard-core. http://sdm.mit.edu/distance.html. The SDM distance-learning option is a 24-month program—MIT’s first graduate-degree program offered primarily at a distance.

  25. I see what this is... by jDeepbeep · · Score: 1

    Now the distracted drivers can have their twitter/text/calls/lipstick/ etc and not get pulled over for it.

    --
    Reply to That ||
  26. Theory versus implementation prediction by bobdotorg · · Score: 2, Funny

    Theory: Sartre
    Implementation: Kafka

    --
    __ Someday, but not this morning, I'll finally learn to use the preview button.
  27. Re:Ummm (use actual trains) by RiotingPacifist · · Score: 1

    On/off loading is too hard/slow and train stations (at least here in the UK are often in a terrible location for car traffic). In theory it's a great idea but in practice it costs too much to set-up for businesses to bother. It has been done in France (probably subsidized, but hey i'm a dirty socialist and think government spending money to reduce CO2 emission is needed) but the cars are moved on separate trains so it's no good for everyday travel.

    --
    IranAir Flight 655 never forget!
  28. Real Trains? by Anonymous Coward · · Score: 0

    I see no benefit over real trains except that this will work with existing roads.

    If the issue is that you want your personal space and you want to drive to/from the train, then the much simpler fix is to make trains that allow vehicle docking. This is actually a much more elegant solution than autonomous vehicle coordination.

  29. Merging and Curves by frith01 · · Score: 2, Insightful

    How would they expect this system to work at highway Merges ? Another fun thing is inclement weather and curves on the highway. My car can take curves at a much higher speed than a panel truck during high winds.

    I can see where this would be useful on long straight highways, but otherwise very dangerous. Each car would also need a "safe return to park" capability which would
    cause the cars to park themselves to the side of the road if the central control was lost, and the driver did not respond within a few seconds.

    Include a gps unit that would alert people that their turn is coming up, and have the professional driver thing only be for testing , and add that capability to general car system.

    1. Re:Merging and Curves by Foofoobar · · Score: 1

      Exactly. That was my first question too. How do they change lanes also? A Lane change with 20 cars would be IMPOSSIBLE!

      --
      This is my sig. There are many like it but this one is mine.
    2. Re:Merging and Curves by woodsworth · · Score: 1
      First of all, this is a research project, so it is supposed to have a couple of open questions left.

      And of course vehicles in the road train will have different speed and maneuver capabilities in principle. A general idea of having a road train is that every vehicle involved adapts to every other in the train. The professional driver in the lead determines speed (and will have to make sure that every vehicle can keep up). This will safe fuel, but might also increase road safety as there are less differences in individual speeds etc.

      In theory you could have the cars leave the train automatically near their exits (with some previous alarm sounds etc.), but this would require that these cars can sense whether neighboring lanes are safe to enter.

      Interesting questions abound here! Where do I join?

    3. Re:Merging and Curves by slim · · Score: 1

      How would they expect this system to work at highway Merges ?

      Don't. Stick to shuttling up and down a simple motorway.

      Another fun thing is inclement weather and curves on the highway. My car can take curves at a much higher speed than a panel truck during high winds.

      The train would obviously have to go at the lowest speed that's safe for all the vehicles in it. There's a few ways this could go:

      I can imagine a situation where the trains go slower than you would probably choose to drive. I'd choose a 4 hour journey where I don't have to concentrate, over a 3.5 hour journey where I do.

      I can also imagine a situation where the trains go a lot faster than you would probably choose to drive - because the software is considered a safer driver than a person; because you have a dedicated lane; whatever.

      I can imagine certain classes of vehicle not being allowed into a train because they can't safely go at the required speed.

      I don't think roads with any kind of sharp turns would be considered for this project. Even so, if high sided trucks are involved, then speeds would have to be reduced in extreme weather conditions.

      Of course, everyone should reduce speed in extreme weather anyway. With a pro at the wheel, it's more likely to actually happen.

      I imagine it would remain in an outer lane, so as not to interfere with

    4. Re:Merging and Curves by wvmarle · · Score: 1

      Cars and trucks will not be in the same train of course. Or do you really think a car will really want to slow down to truck speed just to be part of that train?

      Fyi: in most countries in Europe, trucks and cars pulling a trailer are allowed to do 80 km/h (almost 50 mph), while cars are allowed to do typically 100-130 km/h (62-81 mph). In Germany on many motorways have no speed limit. And yes cars there can and will do speeds well above 200 km/h (124 mph), legally. Trust me, that is bloody fast. Kinda scary even.

      Furthermore uphill many trucks can't maintain 80 km/h, some fall back to 30-40 km/h even. That is on the steeper parts of the motorway. Just because their engines are not strong enough to haul that 40-50 tons up the slope faster.

  30. Re:Ummm (use actual trains) by Garridan · · Score: 4, Funny

    Naw, killing the young is both a better deterrent to overpopulation, and easier because the ignorant good-for-nothing whippersnappers won't even see it coming.

  31. Instead, how about... by 6Yankee · · Score: 1

    ...a luxury coach, with family compartments, toilets, DVD players, all that stuff, and stick a six- or eight-car trailer behind it.

    We can do that today.

    1. Re:Instead, how about... by cdn-programmer · · Score: 1

      Mod parent up! I've got mod points but I've already posted!

      This is a damn good idea. But probably one should think of using a plane for longer trips and just let the semi truck do the work!

      But how about this idea:

      A park it and leave it system. In a system like this you walk down the street until you see a vehicle you like. You stick in your park it and leave it card and it processes a rental Contract for you and away you go. When you get to where you want to go you pull over and park it and pull out the card and the car is there for the next guy!

      With a properly designed system one could use a browser to find and reserve a car!

      This is not really any different than walking into any car rental firm. Its just that the cars get spread around a bit. Of course some rules will need to apply but a server with GPS information can do most of that sort of administration!

      With a decently priced system I would probably be one of the first to lose my car. Now this might not work well for commuters but I do happen to live in a city with a pretty good Light Rail Transit line. The trains run every 10 minutes and cost $2.50. I can't drive my car downtown every day and pay parking at a rate of $5.00*20 days = 100 bux/month.

      Mind you a couple years ago I had an infection and had to see the community nurses who were 3 stops away. My car was in the shop getting fixed. I found I could walk the 2-3 miles within about 10 minutes of the time required to take the train. The station where I live is 4 blocks away. The station where I was going was 3 blocks away. So I walked! Why pay them $5.00 bux when I can get some good excersise.

      The issue is that we need to really boost convenience and I think we can do it! BTW that route I walked down? It was the number #10 bus route. I rarely saw a bus! To me it makes little sense to be hauling around tons of metal and meanwhile suggesting this might save fuel! In this city I do happen to see the buses driving around empty for hours per day!

    2. Re:Instead, how about... by ashitaka · · Score: 1

      You're a few years too late with that idea:

      The biggest:
      Zipcars.com
      Co-Operative Auto Network

      A bunch of other car sharing links: http://www.carsharing.net/where.html

      --
      If you don't want to repeat the past, stop living in it.
    3. Re:Instead, how about... by orngjce223 · · Score: 1

      http://www.zipcar.com/

      Already exists in most major metro areas. The question is of course critical mass: needing more ridership so they can get more cars so they can accomodate more riders.

      --
      Note: I was 13 when I wrote most of this. Take with several grains of salt.
  32. I've seen this by SnarfQuest · · Score: 1

    I've seen this in operation already.

    There was this camper with bicycles attached to the back, towing a car, towing a trailer full of moterbikes and canoes. If that isn't a road-train, I don't know what it should be called.

    --
    Who would win this election: Andrew Weiner vs Andrew Weiner's weiner.
    1. Re:I've seen this by mobby_6kl · · Score: 1

      That's not a road train, THAT is a road train!

    2. Re:I've seen this by ashitaka · · Score: 1

      I was waiting for that. The Aussie road trains really are a sight to be seen.

      On topic though, I have seen a demo of this technology at least 10 years ago so in that time they've had plenty of time to work through issues, test scenarios out the wazoo, so all this "But what if..." BS is just annoying.

      --
      If you don't want to repeat the past, stop living in it.
  33. road trains are *awesome* by Interoperable · · Score: 1

    You're handing control over to another driver, who may very well decide not to brake and cause a five car pileup

    The following cars are electronically linked in, they would also brake and the whole train would come to a stop. As long as each car (including the lead) was restricted to brake at the same rate as the car with the worst stopping time no collision would ever occur. Besides, if the distance between the cars is small enough, even a discrepancy in braking power that wasn't compensated for would only cause a slight difference in velocity before a collision occurred. The impact would be minimal unless the last vehicle was a truck with failed brakes; but TFA states that trucks would be at the front.

    At the end of the day, we all put our lives in the hands of every other driver on the road anyway. Same thing if you ever get on a bus. As long as the systems were reliable I doubt it would add too much extra danger.

    Eventually we'll get reliable remote control from the highways themselves though and then travel will be *awesome.* I envision a system where traffic light controlled intersections are replaced by precision timing. Cars would be staggered by about two cars lengths as they approached the intersection and would be timed such that they could pass through the intersection at full speed without colliding. Of course, the drivers would have to be removed from the loop entirely and every vehicle would have to be completely reliable. If it did work though, could you imagine passing mere meters from other vehicles travelling perpendicular to your vehicle all at a couple hundred km/h? Of course by then we'll all have jet-packs anyway, right? Right?!?

    --
    So if this is the future...where's my jet pack?
    1. Re:road trains are *awesome* by girlintraining · · Score: 1

      As long as each car (including the lead) was restricted to brake at the same rate as the car with the worst stopping time no collision would ever occur. Besides, if the distance between the cars is small enough, even a discrepancy in braking power that wasn't compensated for would only cause a slight difference in velocity before a collision occurred.

      This is an analog system, not a digital one. Braking power changes as a function of surface wear, applied pressure, rotor temperature, road conditions, vehicle speed, weight, and shifting of mass (which occurs during braking/turning). Also, a sinusoidal effect could be observed in a long chain where a vehicle brakes lightly at the start of the chain, causing each subsequent vehicle to brake slightly harder until the braking capacity is exceeded. With their close proximity, only a fraction of each vehicle's braking capacity could be utilized for safe operation.

      --
      #fuckbeta #iamslashdot #dicemustdie
  34. Who pays if you crash? by drtsystems · · Score: 1

    So of course the question that would keep anyone from joining this... who pays for damages to your car if the professional driver crashes YOUR car??

  35. Done before by Animats · · Score: 1

    This has been done before, and better, in California. See Demo 97.

    There's considerable military interest in follow-the-leader systems for convoys. The military routinely drives trucks around in big groups. The US Army has a system in test where the lead vehicle (usually armored) leads a group of driverless trucks. That's to reduce casualties, not labor.

    The fundamental problem with most automated driving schemes is that they address driving on freeways, which people don't mind all that much. Automatically retrieving your car from a parking garage or lot and bringing it to you would actually sell.

    1. Re:Done before by swillden · · Score: 1

      The fundamental problem with most automated driving schemes is that they address driving on freeways, which people don't mind all that much. Automatically retrieving your car from a parking garage or lot and bringing it to you would actually sell.

      Depends on where you live. Where I live, 95% of my driving is on freeways, and I rarely have to walk more than 20 yards to get to my car in a parking lot.

      --
      Note to ACs: I usually delete AC replies without reading them. If you want to talk to me, log in.
    2. Re:Done before by MozeeToby · · Score: 2, Interesting

      The fundamental problem with most automated driving schemes is that they address driving on freeways, which people don't mind all that much.

      Speak for yourself. I make a 5 hour drive once a month to see family and assuming a minumum level of safety, I would pay at least $5k for a system that kept the current lane, kept the current speed, and automatically slowed down to avoid accidents. Sure my drive would take just as long, probably even longer since it wouldn't go around slow vehicles in the fast lane, but that would be hours out of my life that I could spend doing any of a dozen different things.

  36. Re:Ummm (use actual trains) by commodore64_love · · Score: 0

    >>>Maybe there should be car-carrying trains. Or stop building sprawl. Anyway, actual trains are far more efficient than this could ever be.

    I'm an environmentalist, but I never felt the need to life in order to push my cause (as you apparently do). Typical trains use the equivalent of 1 gallon gasoline every 25 passenger-miles. My Honda Insight hybrid using that same 1 gallon can achieve 75 passenger-miles (or 150 passenger-miles if I carry a friend).

    The reason trains are so inefficient is due to their frequent stops and starts

    --
    "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
  37. Re:Ummm (use actual trains) by Bakkster · · Score: 3, Insightful

    Exactly, this is a quick and dirty optimization for commuters. By just linking up on the fly and on the highway that's already being driven, any properly equipped cars can hop in instantly and follow the route they normally take. Loading onto an actual train takes time on both ends and requires the drivers to board/depart only at train stations, making it more effective for long distance (3-8+ hours). It also allows this to go all along the freeway you travel, rather than just along the rail lines, meaning more people would use a system tied to just the highway.

    Of course, I can guarantee this system would limit travel speed to the legal speed limit, so this wouldn't catch on with the majority of commuters. Most cities, if traffic isn't moving 15mph, it's going 15mph faster than the speed limit.

    --
    Write your representatives! Repeal the 2nd Law of Thermodynamics!
  38. Sartre ? by chthon · · Score: 1

    This will give an entirely another meaning to the expression "L'enfer, c'est les autres".

  39. Fuel savings? by Elwar123 · · Score: 2, Insightful

    So you need one professional driver for every 8 cars to do the driving. How is it saving fuel if for every 8 cars your new train system has to have 1 more car burning fuel? You're adding 12.5% in fuel to save a few mpg.

    1. Re:Fuel savings? by smitty777 · · Score: 1

      Hrmmm...good question. So, if each car saves 20%, you would have to have (20%x5) cars to equal the cost of the truck,in theory. I suppose you could argue that the truck is diesel, and has better economy?? Regardless of the mileage, you're still adding on one new vehicle per train to the already congested roadways.

      --
      "Before God we are all equally wise - and equally foolish"
      Albert Einstein
    2. Re:Fuel savings? by eightball · · Score: 1

      The lead car could be a bus. Not necessarily a full sized bus, just one that carried extra passengers.

  40. Road Train! Road Train! by Chyeld · · Score: 1

    Uh, Breaker One-Nine, this here's the Rubber Duck
    You got a copy on me Pig-Pen? C'mon

    Uh, yeah 10-4 Pig Pen, fer sure, fer sure
    By golly it's clean clear to Flag-Town, C'mon

    Uh, yeah, that's a big 10-4 Pig-Pen,
    Yeah, we definitely got us the front door good buddy,
    Mercy sakes alive, looks like we got us a Road Train

    Was the dark of the moon, on the sixth of June
    In a Kenworth, pullin' logs
    Cabover Pete with a reefer on
    And a Jimmy haulin' hogs
    We 'as headin' fer bear on I-One-Oh
    'Bout a mile outta Shaky-Town
    I sez Pig-Pen, this here's the Rubber Duck
    An' I'm about to put the hammer on down

    Cause we gotta little ol' Road Train, rockin' through the night
    Yeah we gotta little ol' Road Train, ain't she a beautiful sight?
    Come on an' join our Road Train, ain't nothin' gonna git in our way
    We're gonna roll this truckin' Road Train, cross the USA
    Road Train... Road Train...

    Hmmm. That doesn't quite work for me. What if we called them, say... CONVOY!

  41. Yeah, right by Anonymous Coward · · Score: 0

    "The system is designed primarily at cutting fuel consumption, travel time, and congestion."

    I call bull! The system is designed at cutting salary costs for truck drivers. Even if the drivers stay in the trucks while they are being controlled by the lead vehicle, they can sleep in that time so it probably won't count as working time.

  42. Re:Ummm (use actual trains) by Timothy+Brownawell · · Score: 1

    Of course, I can guarantee this system would limit travel speed to the legal speed limit, so this wouldn't catch on with the majority of commuters. Most cities, if traffic isn't moving 15mph, it's going 15mph faster than the speed limit.

    Or maybe the lack of speeding would remove the revenue incentives for having stupid speed limits, and the limits would get raised to something sane.

  43. Human Stupidity by Rakishi · · Score: 1

    They seem to be assuming some idealistic world where everything goes as they plan.

    I mean, how will the system react to motorcyclist merging into the middle of it to pass to the other side? What about a car trying to merge into the middle of it? Proper driving distance requires enough space for that to happen after all. Do they really expect to have an 8 car merging dead zone?

    If they're in the left lane then they need to get into it somehow and I also doubt every car can drive at the speed limit (or above it rather) so the left is out. An eight car no merging zone would annoy a lot of people so every other lane is out as well.

    That's not even getting into people who have malicious intent and try to make such a beast crash by, for example, running a specifically broken transmitter.

    1. Re:Human Stupidity by amorsen · · Score: 1

      Just let them use the HOV or bus lane. Problem solved.

      --
      Finally! A year of moderation! Ready for 2019?
    2. Re:Human Stupidity by slim · · Score: 1

      I mean, how will the system react to motorcyclist merging into the middle of it to pass to the other side? What about a car trying to merge into the middle of it? Proper driving distance requires enough space for that to happen after all.

      'Proper driving distance' would not be observed. That distance is intended for human beings to react to unpredictable behaviour from the car in front.

      In this project, the cars are being driven by computers with much faster reactions than humans. And the car in front is controlled by the same computer. I was about to say that every car in the train would brake simultaneously - but on reflections, it's more likely that the back car would brake first.

      I get the impression that the cars would be mere inches apart - certainly not space for a motorbike to sneak through. A gap would open during the car-leaving-the-train pattern; some solution is needed there.

      That's not even getting into people who have malicious intent and try to make such a beast crash by, for example, running a specifically broken transmitter.

      This is the most realistic objection so far. Pretty scary!

  44. Re:I've seen this too by cdn-programmer · · Score: 1

    Ya I've seen this too. It was just North of North Battleford Saskatchewan and there was this car pulling a trailer and behind this was a nice boat. The problem is the car was in the ditch. Their road train started to fish tail. They were going down a hill. The trailer swung around and wiped out both back fenders of the car before it tore the hitch off. Then it headed into the ditched and did a couple summersaults. Since the boat was hooked to the trailer it also did a summersault as it broke the tie downs and left the trailer.

    I would say the mess was something like 250-500 feet. The driver and his wife were sitting in the ditch with their heads in their hands. There was stuff like pillows and bedding and dishes scattered all over the place!

    Too bad I didn't have my camera! BTW I was also towing my brand new boat but I knew better than to try to run a road train. I think to do this successfully you actually have to have brakes on the trailers.

  45. Hey, a question: by sean.peters · · Score: 1

    Is this where I put in the "In Soviet Russia" joke?

  46. Re:Ummm (use actual trains) by TheRaven64 · · Score: 2, Insightful

    And the sprawl that already exists?

    Well, the nuclear powers are talking about reducing their warhead stockpiles. Maybe we could solve two problems at once.

    --
    I am TheRaven on Soylent News
  47. I just want to know... by wcrowe · · Score: 1

    What happens when one of the vehicles in the "road train" has a blowout, or something like that?

    --
    Proverbs 21:19
    1. Re:I just want to know... by Bob-taro · · Score: 1

      What happens when one of the vehicles in the "road train" has a blowout, or something like that?

      That's what I'm thinking. Especially if it's the big lead truck that decides to shred a tire. Or if there's a need to stop suddenly, and car #2's brakes are too worn to perform as well as car #1's. Or the lead car (for any reason) crashes - automatic 8 car pile-up!

      --
      Prov 9:8 Do not rebuke mockers or they will hate you; rebuke the wise and they will love you.
  48. Re:Ummm (use actual trains) by FooAtWFU · · Score: 1

    More likely you pay a fee, so you get to use the "road train" and go faster. How's that for your revenue incentive?

    --
    The World Wide Web is dying. Soon, we shall have only the Internet.
  49. Efficiency not from drafting by ThrowAwaySociety · · Score: 1

    Ah ah !

    20% less fuel for the vehicles following the main vehicle..

    (they forget to mention the *EXTRA* fuel expense for the leading vehicle that is basically towing the others..)

    Basically, no one will ever want to be in front (look at cycle races.. it only works if people take turns at being the 1st in line..)

    --Ivan

    Presumably, the efficiency comes from the lack of stop-and-go (and other variations in speed) not from "drafting" behind the lead car.

    Drafting requires extreme proximity between vehicles...we're talking like 6ft/2m or so for vehicles of typical size. At even moderate highway speeds (60mph/100kph) that leaves about a twentieth of a second between vehicles, which is probably too much for even a computer to manage effectively, given the limits of the mechanical systems involved. And at lower speeds, the advantage of drafting is negligible.

    1. Re:Efficiency not from drafting by JWW · · Score: 1

      ... which is probably too much for even a computer to manage effectively ...

      Use the force Luke!!

    2. Re:Efficiency not from drafting by holmstar · · Score: 1

      Drafting requires extreme proximity between vehicles...we're talking like 6ft/2m or so for vehicles of typical size. At even moderate highway speeds (60mph/100kph) that leaves about a twentieth of a second between vehicles, which is probably too much for even a computer to manage effectively, given the limits of the mechanical systems involved. And at lower speeds, the advantage of drafting is negligible.

      They are proposing doing exactly what you describe. Cars driving at high speeds only a few feet apart. It can certainly be done in cars that are built to that purpose. True, retrofitting existing cars would be tricky, because they generally aren't built for that kind of fine control, but building cars to that spec is just an engineering problem.

  50. Technologty can't fix stupid drivers by natoochtoniket · · Score: 1

    This morning, I drove about 20 miles in extremely dense traffic. "Bumper to bumper", and about 15 miles below speed limit. I could see the lead vehicles at every curve in the road. They were side by side, matching speeds. In front of them, there were no cars (none!) on the road, as far as the eye could see.

    "Drafting" might help fuel economy, but the only way it could reduce congestion or travel times would be if we can also get some of the idiots off of the road.

  51. Re:Ummm (use actual trains) by plague3106 · · Score: 1

    Ahh yes, truely narcissistic attitude. Nuke those that dare build somewhere I disgree with.

  52. Re:Ummm (use actual trains) by Orange+Crush · · Score: 4, Interesting

    Designate the leftmost lane the "train lane." Hit a button on your dash, and it signals the train to make an opening for you, hand off driving control to the "conductor" and you get to cruise at 15mph above the posted speed limit--legally. When you approach your exit, it signals you to leave the train, and you resume manual control to get the rest of the way to your destination.

    Sounds workable to me.

  53. Re:Ummm (use actual trains) by MBCook · · Score: 1

    Of course, I can guarantee this system would limit travel speed to the legal speed limit, so this wouldn't catch on with the majority of commuters.

    I've seen things when they get busy around here. I'd much rather go 70mph (or even 45mph) than the maybe 10 you can average during congestion.

    To say nothing of cities with bigger traffic problems like DC, San Fran, or LA.

    --
    Comment forecast: Bits of genius surrounded by a sea of mediocrity.
  54. Yeah, define 'soon' by Anonymous Coward · · Score: 0

    This is interesting, in its way, but there are so many hurdles to overcome that claiming it's 'soon' to be rolled out it becomes a rather blatant search for publicity. And, oh look, it worked.

  55. Never seen Canada geese fly? by dontmakemethink · · Score: 1
    --

    War as we knew it was obsolete
    Nothing could beat complete denial
    - Emily Haines
  56. Re:Ummm (use actual trains) by TooMuchToDo · · Score: 1

    I would indeed pay for that ability, especially on long haul drives (100+ miles).

  57. Scary security implications by SoftwareArtist · · Score: 1

    Why am I really scared by the idea that every car will be remotely controllable via a wireless connection? Of course there's no risk. It's completely inconceivable that someone will figure out how to hack into the control system, bypassing whatever authentication is required and taking control of random cars as they drive down the road. We all know things like that could never happen, since of course these cars will have unbreakable security.

    --
    "I'm too busy to research this and form an educated opinion, but I do have time to tell everyone my uninformed opinion."
  58. A part of Framework 7 research plan? by Anonymous Coward · · Score: 0

    I've been involved in a few of the projects financed by this plan. Let's just say that delivering a working (or even realistic) system is not part of the objectives of most of those projets. Oh yeah, and in order to get funded, your proposal has to read like a SF book and usually has to involve a real AI.

    Really those projets are designed to bring together companies and academics, and to distribute lots of money. Advancing the state of the art is nothing but a nice (and unexpected) side effect.

  59. Road trains already exist. by rossdee · · Score: 1

    In the southern hemisphere there already Road Trains.
    http://en.wikipedia.org/wiki/Road_train

    1. Re:Road trains already exist. by SoftwareArtist · · Score: 1

      That's very different from what's discussed in this article. It's just a truck pulling multiple trailers at once.

      --
      "I'm too busy to research this and form an educated opinion, but I do have time to tell everyone my uninformed opinion."
    2. Re:Road trains already exist. by Anonymous Coward · · Score: 0

      Well thanks for letting us know that, Poindexter. Cunt.

  60. Re:Ummm (use actual trains) by Nefarious+Wheel · · Score: 1

    I'm an environmentalist, but I never felt the need to life in order to push my cause (as you apparently do). Typical trains use the equivalent of 1 gallon gasoline every 25 passenger-miles. My Honda Insight hybrid using that same 1 gallon can achieve 75 passenger-miles (or 150 passenger-miles if I carry a friend).

    The reason trains are so inefficient is due to their frequent stops and starts

    I call Shenanigans!

    Facts are otherwise and here they are.

    --
    Do not mock my vision of impractical footwear
  61. Re:I've seen this too by Anonymous Coward · · Score: 0

    nice boat

  62. Re:Ummm (use actual trains) by Anonymous Coward · · Score: 0

    What if you have fallen asleep at the wheel when it disengages?

    Even worse if you are a heavy sleeper who can't be woken by normal alarms.

  63. Socialism!! by caywen · · Score: 1

    I agree with Glen Beck - Don't let the government take away our freedom to drive!! Say no to Obamatrain.

  64. Re:Ummm (use actual trains) by commodore64_love · · Score: 1

    >>>Source: Australian Greenhouse Office.

    Yeah I trust them..... about as much as I trust Minister Conroy's claims that the internet needs to be universally-filtered by the government. I see with my own eyes the Washington D.C. metros running late at night, barely any passengers on board. That's a lot of wasted energy to run ~100,000 pound trains, with frequent stops and starts, and virtually nobody on board. A 2000 pound car would be more efficient.

    --
    "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
  65. You're missing the point. by nuckfuts · · Score: 1

    What you should do is create a dedicated lane that is controlled entirely by computer...

    If you had bothered to RTFA, you might have noticed this statement:

    We're looking at what it would take to get platooning on public highways without making big changes to the public highways themselves.

    They're not claiming this is the best or only way to do this. They're specifically looking for a solution that would work on existing highways.

  66. Re:Ummm (use actual trains) by MightyYar · · Score: 1

    And the sprawl that already exists?

    Those areas will urbanize over time, assuming that our population continues to increase. It's crazy to continue development without any urban planning.

    --
    W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
  67. Re:Ummm (use actual trains) by MightyYar · · Score: 1

    It could keep you stuck to the train unless you acknowledge the disengage warning.

    Where's my patent?

    --
    W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
  68. The early 60s called by countertrolling · · Score: 1

    They're looking for that old film from one of the proving grounds. You know which one I mean.

    --
    For justice, we must go to Don Corleone
  69. Already done - 1977 by quanta · · Score: 2, Informative

    GM did this "car train" thing as an advanced research project back in the late 1970's in Cincinnati, OH.
    Couldn't find a link, but remember reading about it.

  70. Not "soon" by URSpider · · Score: 1

    The article never says that such a system "could soon be rolled out in Europe." What it says is that the European Union is doling out grant money to researchers to study such a system, and that they might try some live experiments. It's pretty clear that this is still a research project, with many technical, regulatory, and societal hurdles to clear before we see it in action.

  71. mod parent up by BitHive · · Score: 1

    Not sure why this got modded down, it seems plausible to me.

  72. Ah yes tire blow out - never had one by spineboy · · Score: 1

    25 years driving - I've never had one, neither has my sis, nor brother, nor Mom, nor Dad, nor best friend, etc. That's just 0 in 200 years driving experience

    Found a few flat tires when I've left my car overnight, from a nail picked up though.

    --
    ..........FULL STOP.
  73. Re:Ah yes tire blow out - never had one by pixelpusher220 · · Score: 1

    ever notice the cars that do have problems on the road?

    It's pretty frequent, as in a *daily* occurrence. If any of those cars were near or in the trains, it's just something that has to be dealt with and accounted for.

    Modern cars are pretty good on average, but the law of averages always catches up eventually. Steering rods, brakes, alternators...lots of potential problems. Hell I've even seen someone's wheel literally come off at highway speeds; as in the lug nuts were either rusted through or they didn't tighten them properly. That's the type of thing that a 'train' would have to deal with.

    --
    People in cars cause accidents....accidents in cars cause people :-D
  74. Difference? by Anonymous Coward · · Score: 0

    Those in following vehicles could take their hands off the wheel, read a book or watch TV, while they travel along the motorway.

    From what Ive seen commuters have been doing this and more for a long time.

  75. Road train? That's not a road train... by Anonymous Coward · · Score: 0

    ..this is a road train

  76. Re:Ummm (use actual trains) by renoX · · Score: 1

    IMHO the engage/disengage part is the tricky part!
    They probably have solved the 'train lane' part (easy) but I wonder how you can engage/desengage safely in this kind of the 'train', especially as the lane next to the 'train lane' is used by manually driven cars..

  77. Re:Ummm (use actual trains) by Bakkster · · Score: 1

    Of course, I can guarantee this system would limit travel speed to the legal speed limit, so this wouldn't catch on with the majority of commuters.

    I've seen things when they get busy around here. I'd much rather go 70mph (or even 45mph) than the maybe 10 you can average during congestion.

    To say nothing of cities with bigger traffic problems like DC, San Fran, or LA.

    That's the other problem. How do you get across 3-4 lanes of stop-and-go DC beltway traffic to the 'fast' train lane (presuming not everyone will have a capable car) to the far left lane which is traveling 70mph and enter safely? Probably will require two lanes, one as a merge lane only during rush hour. But again, good luck convincing city planners to give up 2 lanes, and preventing accidents with manual-drivers interfering with the train.

    --
    Write your representatives! Repeal the 2nd Law of Thermodynamics!
  78. Engine heat? by zztong · · Score: 1

    Many, many years ago I vaguely remembering a discussion between some relatives of mine about drafting to get better milage. I seem to recall one potential problem that was mentioned was that trailing cars might not get the airflow for cooling the engine that was expected by the designers. None involved in the discussion were experts. I wonder if there's anything to that line of thinking...?

  79. Use Secret Service or NASCAR taillights by dwhite21787 · · Score: 1

    Just put three small lights in the center of the rear bumper:

    Green - accelerating

    Yellow - feet off pedals, engine is dragging

    Red - braking (redundant)

    Maybe make both yellow turn signals come on for feet off pedals.

    --
    "Even if you're on the right track, you'll get run over if you just sit there" - Will Rogers
  80. Automated roads, 2109 by h00manist · · Score: 1

    In a hundred more years, they'll do more math, and discover that efficiency will increase greatly with reducing friction, creating straight lines, predictable, computer-monitored and guided paths. They'll make steel roads, steel wheels. Flat, straight, and long, with soft curves. Perhaps with two parallel steel guides, perhaps with one overhead guide. They'll plot the locations of the guides and trains on maps and computers. They'll allow the the cars to simply lock onto one another, and travel as one big element. Most likely unlocking from each other to stop individually at their streetss, or stations, whatever. But none of this will be coordinated by a public group, much less a goverment, all will be privately owned and sold by public corporations, ten generations of mass-produced technologies, all built, bought, tested, crashed, and discarded, one by one, paid by you.

    --
    Build your own energy sources from scratch. http://otherpower.com/
  81. Re:Ah yes tire blow out - never had one by kobaz · · Score: 1

    I had a tire that was patched by a plug, completely explode when traveling at 65mph.

    I've seen tires explode on semi's barreling down the highway too.

    Anything can happen.

    --

    The goal of computer science is to build something that will last at least until we've finished building it.
  82. The solution is old - "private rapid transit" by h00manist · · Score: 1

    PRT - Private Rapid Transit is old, has lots of different companies, solutions, implementations, and tests, and works great! The only problem as usual, is that it's too efficient - it doesn't waste and crash lots of cars and break lots of parts, require constant maintenance, insurance, fuel, roads, service stations, parking lots, resellers, etc, "generating" millions of jobs, and make lots of money for lots of companies. It just gets built once, requires only a few maint guys, and just works. So when we invent a new form of economy, not socialism or capitalism, maybe we'll have it. Till then, plod along at 35mph in a 120mph-capable steel box, surrounded by amateur drivers in their own private steel boxes, consuming 30% of the average salary and killing a couple users once in a while.

    --
    Build your own energy sources from scratch. http://otherpower.com/
    1. Re:The solution is old - "private rapid transit" by holmstar · · Score: 1

      Right... i'm sure it has nothing to do with the fact that pretty much every PRT concept requires significant infrastructure to be built before it can be used. Significant infrastructure = large entry barrier.

  83. That's not a road train! by shplorb · · Score: 1

    THIS is a road train. =]

  84. MOD PARENT UP by Anonymous Coward · · Score: 0

    Makes sense to me!

  85. Re:Ummm (use actual trains) by WillDraven · · Score: 1

    If you don't acknowledge the normal alarm you could have it drift your car over to hit the rumble strips along the side of almost every interstate.

    --
    This is my sig. There are many like it but this one is mine.
  86. I was thinking of something along these lines a by Anonymous Coward · · Score: 0

    few years ago when reading an article about plug-in hybrids. Forget the professional driver, we have all the building blocks to fully automate cars in specialized highway lanes now. Think of it as a high speed lane with a premium toll charge to pay for maintenance. Cars need to meet minimum standards such as be a plug-in hybrid modified to pull power from the roadbed, have GPS, on-board distance monitoring sensors, etc, to participate (perhaps checked during a standard annual inspection like many states now require). I am sure traffic specialists can handle the merge and breakdown issues without too much difficulty. Basic premise, use an EZ-Pass system or similar to charge for lane access, once in the lane, the car switches to fully electric propulsion and receives a charge from the roadbed (think trolley). GPS and sensors control location, speed and distance between vehicles. Make the distance equal the distance of the weakest braking system in the line plus a few feet for safety. The system would need to alert the driver a few miles before the exit and require some signal from the driver that they were awake and ready to assume manual control (push a button, whatever) before disengaging. Otherwise, the vehicle could be routed into an overflow area and a signal sent to police or highway personnel to check the driver's status. This would require some investment in infrastructure, but could be phased in over time and existing vehicles could be retrofitted without much difficulty. Think of the job opportunities!

  87. Beyond 2000 by daHIFI · · Score: 1

    I remember seeing a demo of this on the old TV show 'Beyond 2000' back in the late 90s.