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Autonomous Road Train Project Completes First Public Road Test

theodp writes "Covered earlier on Slashdot, but lost in the buzz over the Google driverless car is Project Sartre (Safe Road Trains for the Environment), Europe's experiment with 'vehicle platooning,' which has successfully completed a 125 mile road test on a busy Spain motorway. Three Volvos drove themselves by automatically following a truck in the presence of other, normal road users. The Register reports that on-board cameras, radar and laser tracking allow each vehicle to monitor the one in front, and wirelessly streamed data from the lead vehicle tells each car when to accelerate, break and turn."

31 of 148 comments (clear)

  1. Or you could just take an ordinary train by ickleberry · · Score: 3, Insightful

    With mechanical linkages and a track instead of this complicated virtual 'pretend' train

    1. Re:Or you could just take an ordinary train by digitallife · · Score: 4, Funny

      Yes, because a real train is exactly as convenient and practical as driving my car on the highway. Should I get off your lawn now?

    2. Re:Or you could just take an ordinary train by Anaerin · · Score: 4, Informative

      This system allows anyone to join and leave the train at any time while it is in motion. It allows users to transfer from one train to another. It can form trains of (theoretically) any length. It allows you to choose your own personal entertainment without disturbing anyone else in the train. It allows you to travel from start to destination without having to wait, or go outside. Need I continue?

    3. Re:Or you could just take an ordinary train by ThatsMyNick · · Score: 3, Insightful

      More importantly it does not require laying new tracks (provided the network highways is already good enough), and lets me take my car along.

    4. Re:Or you could just take an ordinary train by Prof.Phreak · · Score: 3, Interesting

      ...and since headwind is reduced, that could mean a LOT more efficientcy fuel wise.

      --

      "If anything can go wrong, it will." - Murphy

    5. Re:Or you could just take an ordinary train by foksoft · · Score: 2

      This shouldn't be a problem. This technology is primarily meant for highways. And as long as my memory goes. I didn't seen anyone crossing it. Except from some crazies and then it is safer to stop whole train. But it might assist even in the urban areas. How often it happens that driver in one lane lets you walk across and in the next line is driver speeding up and almost driving over you. Just to stop on red light in less than 50 meters.

  2. I wonder how well it handled agressive passing by BagOBones · · Score: 3, Interesting

    On long mountain roads far to often I see someone try to aggressively pass long sets of cars only to have to abort half way, causing other drivers to let them in quickly to avoid an accident..

    I wonder if this road train would let them in.

    --
    EA David Gardner -"... but the consumers have proven that actually what they want is fun."
    1. Re:I wonder how well it handled agressive passing by Adriax · · Score: 2

      When there's enough room for not only the first guy but both the idiots who started passing as well without checking, then yes, they're driving aggressively.

      --
      I don't suffer from insanity, I enjoy every minute of it!
    2. Re:I wonder how well it handled agressive passing by david.given · · Score: 2

      Yeah, that was my thought too; they'd have to let the car in, because that kind of stupidity is real life human behaviour that the machines are just going to have to deal with in order to operate on real roads. (Simply hanging a sign on the back saying 'road train, do not overtake' isn't an option because you know some moron is going to ignore it.)

      So the options are: (a) break the train --- but this is bad, because you're suddenly going to have to alert everybody from the break downstream that they're suddenly going to have to drive on manual, without much warning, or (b) maintain the train, but with a foreign car in the middle.

      (b) is actually reasonably plausible; motorways are very regulated environments, and the cars are going to have to cope with foreign vehicles anyway, so it's not that hard a problem. You can still rely on the train for high-level navigation and long distance sensing, which is the bulk of the value. Theoretically you could have the train spread over some distance, interleaved with ordinary traffic... but that's getting a bit hairy. (Plus, you get a potential for train breaks if the cars get too far apart for radio communication.)

      OTOH the FAQ on their website specifically says that the entire train changes lane as a unit, at the discretion of the lead driver. So maybe they're not going for that sort of autonomy.

      *shrug* I'd be interested to know more.

    3. Re:I wonder how well it handled agressive passing by jeffb+(2.718) · · Score: 2

      On the other hand the people that have to "let passing cars in" are tailgating, or if the lead vehicle is going so slowly that they're not tailgating then it should be pulling over to let them all pass.

      Let N meters be the minimum safe following distance at the speed of the cars being passed.

      Let one of those cars be following another at N meters distance. By definition, this is a safe following distance, and that car is not tailgating.

      Now, let another car cut in between them. That car is now following the one in front at less than N meters distance, so it's tailgating, and the car behind it is following it at less than N meters distance, so that car is tailgating, too -- through no fault of its own -- unless it "slows down to let the passing car in".

      "Safe driving" does not mean "everybody else get the hell out of my way".

    4. Re:I wonder how well it handled agressive passing by Zaelath · · Score: 4, Insightful

      Agreed, excepting that N meters is rarely "minimum safe distance" in practice. At 60Kph on the 2 second rule, that would be 33 meters which would hardly make most people feel "cut up" if you slot a 5 meter car into it. And I never see "safe" drivers leaving that kinda gap; that might encourage someone to fill it!

      Once you do make the pass then yes, you and the car(s) behind you need to slow a little for a short time to re-establish the MSD but the risk there is far smaller than the usual method of maintaining 1s gaps all the time so that no one can overtake 1 car; they need to charge the queue and round up 4-5 cars generally forgetting that it takes quite a while and the whole time they have their foot on the accelerator getting up to dangerous speeds.

      This is usually the domain of impatient youths, but I tell you what, the assholes that are riding my ass in traffic while I keep an actual 2s gap in front of me are just as often middle aged. The youths ( 25 ) at least have an excuse, the science says their brains aren't good at calculating risk, it's the 30+ crowd that tailgate and act like the laws of physics don't apply to them that irritate me.

      Safe driving also doesn't mean enforcing your own theories on every other driver on the road through passive aggressive driving.

    5. Re:I wonder how well it handled agressive passing by wvmarle · · Score: 2

      The article says that the cars were following the truck at an average separation of just 6m. That's roughly the length of a typical car. Good luck moving in between two of them (unless the train cooperates - which would require the overtaking car to communicate with the train's control systems).

      This sounds like a system suitable for motorways only - where traffic is highly predictable, and you never have to abort overtaking. The human driver in the front, who basically drives the complete train, is then in charge of stopping the train in case of traffic jams and so.

      Interesting issues that are not mentioned in the article, but that must have received thought:

      1) when a car in the train reaches its intended exit, the driver will have to take over again. How do they manage that with say the second car in line? Having a human driver in control at a 6m separation doesn't sound like a great idea. Or will the car automatically be moved on the slipway where control is handed back?

      2) breakdown of a car in line: there must be some sort of fail safe in place. Will it move the car to the emergency lane and stop automatically?

    6. Re:I wonder how well it handled agressive passing by jeffb+(2.718) · · Score: 3, Insightful

      I've never, ever, not even once seen anyone driving at the prescribed safe distance.

      I see it all the time. Just look for the person everybody's cutting in front of. Of course, he can only maintain that safe distance for short intervals before the next "above-average driver" cuts in and brakes...

  3. Break? by djbckr · · Score: 3, Funny

    Seriously, how easy was that one? Brake is something that slows down a vehicle. Break is when it fails to Brake!

    1. Re:Break? by pitchpipe · · Score: 4, Funny

      ...and wirelessly streamed data from the lead vehicle tells each car when to accelerate, break and turn.

      It's not a typo. The lead car has special sensor to determine when a car is getting fatigued, and will call a 'break time' when it senses enough cars getting tired.

      --
      Look where all this talking got us, baby.
  4. Re:Project Sartre???? by Anonymous Coward · · Score: 3, Funny

    You could have taken say, 3 seconds, and done something better, like...

    They were driving on the highway, and discovered there was no exit.

  5. What's the point? by countach · · Score: 2, Insightful

    I can't see the point in pursuing automated drivers. I mean, even if you could get them to work well 99% of the time, that 1% failure (or even .001% failure) would be just unacceptable.

    I know we get computers to control aircraft, but it is a rather different situation. The problem of controlling an aeroplane with nothing up there to run into is a problem 10000 times easier than on the ground where there are so many hazards to avoid. The software would be so complex, there would be no way of knowing when it is going to plunge the vehicle into a tree. Odd happenings like this even occasionally happen to aircraft, but at least then the pilot usually has time to recover the situation before it is fatal. And that software is going to be MUCH simpler and auditable.

    1. Re:What's the point? by Baloroth · · Score: 4, Insightful

      I can't see the point in pursuing automated drivers. I mean, even if you could get them to work well 99% of the time, that 1% failure (or even .001% failure) would be just unacceptable.

      And in this magic world you live in human drivers work right 100% of the time? For that matter, car breakdowns can cause accidents too, and we more than accept those. A .001% failure rate would certainly be acceptable (although "rate" is, in this case, ambiguous: do you mean .001% of driverless cars would ever crash?) That is vastly superior current percentages, which is roughly 2-3% per year. Even 1% failure rate per year would be a significant improvement over human drivers. And there really aren't that many hazards on the highway or especially freeways. In residential neighborhoods? Maybe, but that is a relatively small fraction of driving which can be overcome by having humans as backups, or highly cautious software. For most driving, you stay between the lines, note the position of nearby cars, and break to avoid any obstacles. A computer can perform those functions better than most humans, since it can track every single car nearby and their exact speed, trajectory, behavior patterns, etc. Humans cannot.

      --
      "None can love freedom heartily, but good men; the rest love not freedom, but license." --John Milton
    2. Re:What's the point? by Derekloffin · · Score: 2

      The problem is, you assume humans work well 100% of the time, when in fact it is considerably lower than that. That's the key issue, not the pursuit of perfection, but the pursuit of something better than a human. Computers can have potentially have better response times, more awareness, and more correct handling of common danger scenarios than humans. We still have a ways to go till we reach the point when we swap a human driver with a computer, but computer assisted driving is getting more a more common.

    3. Re:What's the point? by cavePrisoner · · Score: 4, Insightful

      I suspect laws will still prevent this for a long while, but I can think of two good situations to use automated drivers. The first is very long drives. In a few weeks I have to make a 24 hour drive. If I didn't have to stop to sleep, I could literally be home in 24 hours. Instead it will take much longer. The other case comes up more, since I'm stuck in a place with nonexistent public transportation. It can drive my drunken self home on weekends.

      Even sober, long duration driving and driving at night (ie tired) result in a lot of crashes. Even if it has a failure rate, it will be better than most human driving anyway. I can think of times (when overworked of course) in broad daylight that I've fallen asleep at red lights. But I still have to get to work. I can't choose not to drive. This gives somebody like me the ability to get to work more safely, if not completely safely.

    4. Re:What's the point? by rts008 · · Score: 2

      I disagree on several points with your comment.

      The 1%, or 0.001% you mention....
      IMHO, if that 1% turns out to be safer than the tens of thousands of fatalities every year due to human error we have now, your objections are silly. (not even taking into account all of the other non-fatal traffic accidents that snarl traffic, damage property, and cause injuries we currently experience)

      And the comparison to operating an automobile to an airplane?....WOW, what are you smoking?

      I would speculate that if getting a pilot license was as trivial as getting a drivers license, you would see a dramatic increase in deaths, crashes, and property damage across the board compared to current automobiles.

      Remember: gravity is a stone cold killer bitch...if your engine dies, you can't pull over to the side of your flight path and wait for a tow-plane.

      Don't get me wrong, I'm one of those that like to be fully in control of my own car. I avoided automatic transmissions until around 1997-8, because I did not want 'my car deciding for me when to shift'!

      --
      Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
    5. Re:What's the point? by bzipitidoo · · Score: 2

      It can drive my drunken self home on weekends.

      My elderly relatives like to remind me that a horse and carriage can do that too. The horse knows how to get home.

      --
      Intellectual Property is a monopolistic, selfish, and defective concept. It is "tyranny over the mind of man"
    6. Re:What's the point? by jsvendsen · · Score: 2

      You didn't read what he wrote. He didn't say it would be any worse than human drivers, he said it would be unacceptable. And he's right. A road fatality is just a road fatality, while a fatality under automated driving is some poor guy getting killed by that newfangled computer that they want to put in your car! Ban, baby! Ban! I try to be fairly data oriented, but I have to admit this particular irrational bias would affect me as well. Barreling down the freeway at 120 km/h with some taxi driver I've never met in the driver's seat? Nothing. Doing the same thing under automated driving? I'd be pretty scared.

  6. Re:Break by AJWM · · Score: 2

    Not quite where I thought you were going with this...

    "Breaker one-nine. Looks like we got us a convoy."

    --
    -- Alastair
  7. Since working on a car, I theorized trains by GoodNewsJimDotCom · · Score: 2

    I worked on Carnegie Mellon's Red Team racing for a bit, but I didn't do anything major. I wanted to put in a redundant vision detection to their laser range finding and GPS guidance, but I got shot down. At least they let me poke around with GPS tweaking for a bit.

    Anyway I always thought it'd be much easier to just make a train system where the rerouting sections get switched depending on your trip you programmed in. By being off normal rider roads, you'd only have to contend with other computerized trains, which could be tracked. The key thing at this point is just having some way to avoid deer and downed trees. I would think by first getting an automated train system up, then we could move into car systems later. The real trick is finding a city that doesn't have car transportation that wants to risk itself into automated trains. There are other problems with automated trains such as vandalism and terrorism and such.

  8. Automatically notify authorities by erice · · Score: 3, Insightful

    So the options are: (a) break the train --- but this is bad, because you're suddenly going to have to alert everybody from the break downstream that they're suddenly going to have to drive on manual, without much warning, or (b) maintain the train, but with a foreign car in the middle.

    In either case, the cars in the train should identify the vehicle and notify the authorities. It would also help to update the traffic law to make it only legal to join a road train from the back with an approved autonomous tracking system. Anything else results in an expensive fine and a moving violation on the driver's record.

    1. Re:Automatically notify authorities by adolf · · Score: 2

      If they notify authorities that aggressive passing is happening, then those authorities should also use this information (demographically) in order to determine which section(s) of roadway need improved/widened/better-patrolled/whatever sooner instead of later.

  9. Re:Anonymous? by gmhowell · · Score: 2

    Who else read "Anonymous Road Train Project"?

    Picturing guys in business suits with Guy Fawkes masks on.

    Reminds me of the demotivator I threw together the other day.

    --
    Jesus was all right but his disciples were thick and ordinary. -John Lennon
  10. Re:old news by camperdave · · Score: 2

    Oh yeah? How are you getting the cars in behind to drive themselves?

    In Australia, a "road train" is a transport truck with multiple physically coupled trailers, not a convoy of independent vehicles. It's like a train - but on the road. Hence, the name: road train.

    --
    When our name is on the back of your car, we're behind you all the way!
  11. A drunk could probably drive 125 mi "successfully" by dpbsmith · · Score: 3, Informative

    Most of the time highway traffic is safe and predictable. Driving 125 miles under favorable conditions (perfect weather and visibility if the news photo is any guide) without incident? Drunks do that and often get away with it; so do texting teenagers and fatigued truck drivers.

    If someone demonstrated that he could drive 125 while smoking marijuana without having an accident, would we conclude that driving while high is safe and should be allowed?

    The accident rate on highways is so low that 125 miles tells you nothing at all. The average accident rate in the United States is 8 fatalities per billion passenger miles. There is no way in the world a single 125 mile test involving four vehicles can tell you whether the accident rate for these car-trains is the same, ten times as high, or ten times as low. This is just a stunt, and proves nothing except that someone at Volvo had guts, and that someone in authority exercised bad judgement and allowed it.

  12. Car chases, no or yes?! by Deliveranc3 · · Score: 2

    Will this make them more exciting or less exciting. In the movies?