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Police Chief: Uber Self-Driving Car 'Likely' Not At Fault In Fatal Crash (arstechnica.com)

An anonymous reader quotes a report from Ars Technica: The chief of the Tempe Police has told the San Francisco Chronicle that Uber is likely not responsible for the Sunday evening crash that killed 49-year-old pedestrian Elaine Herzberg. "I suspect preliminarily it appears that the Uber would likely not be at fault in this accident," said Chief Sylvia Moir. Herzberg was "pushing a bicycle laden with plastic shopping bags," according to the Chronicle's Carolyn Said, when she "abruptly walked from a center median into a lane of traffic." After viewing video captured by the Uber vehicle, Moir concluded that "it's very clear it would have been difficult to avoid this collision in any kind of mode (autonomous or human-driven) based on how she came from the shadows right into the roadway." Moir added that "it is dangerous to cross roadways in the evening hour when well-illuminated, managed crosswalks are available." The police said that the vehicle was traveling 38 miles per hour in a 35 mile-per-hour zone, according to the Chronicle -- though a Google Street View shot of the roadway taken last July shows a speed limit of 45 miles per hour along that stretch of road.

20 of 527 comments (clear)

  1. Re:Still killed though by war4peace · · Score: 4, Insightful

    Much like a river kills the person jumping in it?

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  2. Not nearly over yet. by rickb928 · · Score: 4, Insightful

    There will be a thorough investigation of the vehicle, the programming, all of the data and details. Even if it is decided that the victim acted imprudently, such accidents always (at least around here, unless it was the police involved) are fully investigated, and the driver is rarely exonerated from all blame, just the proximate causal fault.

    Now, for you ignats who see class discrimination in the description that the victim was pushing a bicycle laden with shopping bags, a word; the police are the upper caste in these situations. Corporations will be prosecuted more often than police officers, and more often than reputable members of the community, IE, government. Or favored citizens. This is not new.

    There was more than one factor leading to this tragedy, and if the end result is change in how these vehicles monitor their surroundings to have more time to analyze and react, excellent, and if the result is a recognition that even self-driving vehicles are unable to avoid such accidents, just as even skilled and careful human drivers are, well, then we've learned that self-driving does not equal infallible. That's important, and useful information.

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    1. Re:Not nearly over yet. by alvinrod · · Score: 4, Insightful

      There was more than one factor leading to this tragedy, and if the end result is change in how these vehicles monitor their surroundings to have more time to analyze and react, excellent, and if the result is a recognition that even self-driving vehicles are unable to avoid such accidents, just as even skilled and careful human drivers are, well, then we've learned that self-driving does not equal infallible. That's important, and useful information.

      Who is expecting self-driven vehicles to be infallible in all conditions? No matter how quickly they can react to sensor data indicating an emergency, they're still bound by the laws of physics and may not be capable of avoiding collision with something that suddenly enters their field of observation. I suspect that this incident will help engineers to design a better autonomous vehicle, but as with any new safety feature we create nature has a way of designing better idiots as well. If someone were to jump out (or be pushed in front of) a vehicle traveling at some speed, there's always a limitation to how much that vehicle is going to be able to deviate from its current trajectory and anyone who falls inside of that window is going to be hit. The only thing that can be done about that is to engineer vehicles that can come to a stop within a shorter window.

  3. Entitled pedestrians by DeplorableCodeMonkey · · Score: 5, Interesting

    In my community, we have great sidewalks, many crosswalks and all that needed to create a safe and walkable community. What do the pedestrians still do, you ask?

    Walk out into traffic if it's more convenient. If a car hits them after taking reasonable measures to stop, they ought to be liable for all of the damage caused including to the vehicle and the driver's therapy if required.

    My wife knew someone who killed a pedestrian who just walked out into traffic like this without thinking. Totally unavoidable. The "victim" was the driver, not the pedestrian because the driver was obeying the law and some stranger decided "fuck the traffic laws" and made her party to an accidental vehicular homicide.

  4. Re:Not Likely by wonkey_monkey · · Score: 4, Insightful

    Yes likely. Look, the guy who's seen the video says that a human driver probably wouldn't have averted the accident. You, who haven't seen the video, are only going on "generally." This incident isn't "general," it's very specific.

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  5. Re:Why does it look like an sidewalk? by gatfirls · · Score: 3, Interesting

    Sure looks like a sidewalk to me.

    https://www.google.com/maps/@3...

    Maybe it's for design since it doesn't make any sense. If you move around on street view they put up signs telling people not to use it so something like this has probably happened before.

    https://www.google.com/maps/@3...

  6. Humans and AI. by Izuzan · · Score: 3, Insightful

    Humans can adjust to changing situations, they can also ready body language. Most people slow down when they see someone on the side of tge road looking like they are going to step out. An AI cant read that sort of thing. They can only react tl basic things presented to them.

  7. Sensors by Volda · · Score: 3, Interesting

    Doesnt the car have sensors that could have detected the person and her bike with bags? Dont get me wrong it appears that the pedestrian was in the wrong but something should have been detected and the car should have done something to try and avoid the accident. Maybe these cars are not smart enough yet. Though once fully certified I would expect them to be better at driving then people. Something to work towards I guess.

    1. Re:Sensors by ColaMan · · Score: 4, Insightful

      Doesn't matter a damn if it has a reaction time better than a human if someone steps out onto the road 20 feet in front of the car and you've got half a second to judge and react.

      There are basic physical numbers at play here - the mass of the vehicle, the ability of the braking system in the car to scrub off speed, the conditions of the tyres, the road surface, etc. In those kinds of short-distance collisions, a computer will be able to reduce the speed of the car by a few mph over a person and that's it.

      The only saving grace that a person has is the ability to read body language and judge that someone might step out onto the road. And even then that usually only results in a foot off the accelerator, and not yet placed on the brake.

       

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  8. Not just the median. by Ecuador · · Score: 5, Informative

    Interesting series of tweets: https://twitter.com/EricPaulDe...
    The median looks like it has fancy, inviting paths, but it also warns you not to use them. And the actual crossing is kind of daunting...
    It is a rather bad design, but it does look dangerous in any case, so if I wanted to cross that way I would exercise extreme caution...

    --
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  9. Re:Still killed though by DontBeAMoran · · Score: 3, Funny

    How will it choose if it has to decide between killing 4 people or 1?

    In a microsecond, it will request the files of each person from Facebook, Google and the IRS and calculate the value of each person' life. If the one person is more important than the other four, those people will be dead before the car even hits them.

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  10. Re:Still killed though by amorsen · · Score: 4, Informative

    You are overcomplicating it. If a car ends up in a complicated situation where it has to guess at how many will get killed, the answer is always to just brake. Get the amount of energy in the collision down, and who knows, some people just might survive. If not, too bad.

    Squirrels don't count for the evaluation, you are obliged to not risk anything to avoid a squirrel.

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  11. Re:Still killed though by ShanghaiBill · · Score: 5, Insightful

    Those are valid ethical questions that have to be answered by the AI and the programmers. If a car is forced to make a choice between killing a squirrel or killing a child, will it treat them the same?

    This is not a "valid ethical question". It is just silly.

    How will it choose if it has to decide between killing 4 people or 1?

    Unlike most humans, the SDC will do the right thing.

    But these rare corner cases are not that interesting, because they are ... rare. Far more common are accidents where the correct course of action is obvious: hit the brakes. And SDCs are FAR better at that. A typical human takes about 1.5 seconds to realize what is happening, move a foot to the brake, and start depressing it. An SDC can do it in less than 10 milliseconds. At 70mph, a car travels more than 150 feet in 1.5 seconds. The response time will be even worse if the human is not paying attention.

  12. Continuous improvement by Morky · · Score: 3, Interesting

    Another key takeaway is that this scenario can now be analyzed and applied to millions of future situations. I just wish all the various autonomous driving companies were sharing their work.

  13. The car was exceeding the speed limit by viperidaenz · · Score: 4, Interesting

    What reason did the Uber car have for going 38 in a 35 zone?
    Surely the speed limit was lowered from 45 to 35 for a reason, probably for safety reasons.
    Can the car not read road signs? It doesn't have the excuse of "I was watching the road, not my speedo" for a minor speeding offence. Did Uber fail to update the map data when the speed limits changed?

    The risk of death being hit by a car below 30mph is relatively low. It increases rapidly as speed increases.
    9% chance of death at 30mph.
    50% chance of death at 40mph.
    Starts reaching 100% fatal over 50mph.

    There's a reasonable chance the woman, who may well have been in the wrong, would still be alive if the car was traveling at or below the 35mph limit.

    source: https://nacto.org/docs/usdg/re...

    There's another study that showed a reduction in speed by 5km/h would result in 30% fewer deaths. That happens to be how much the Uber car was over the limit.
    http://humantransport.org/side...

  14. Re:Still killed though by angel'o'sphere · · Score: 4, Informative

    No one is programming a car that way.
    The first rule is to anticipate and slow down before anything could happen.
    The second rule is to brake.
    And the third is to stay on your lane. Except you have a spare lane going same direction.

    Neither a programmer nor a car is deciding if it hits 2 3 4 or 1 person. If the thing in its lane is not going away, and the car has not stopped in front of it: it is hit. As simpel as that.

    What is next is a realtime auction between the life insurance companies of the potential victims to determine who gets hit.
    Run by AI bidding bots?

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  15. Re:Wow what a coincidence! by CptLoRes · · Score: 3, Interesting

    Tire markes would mean that you braked to hard locking the tires, causing you to lose traction. A system breaking at optimal efficiency would and should not leave tire marks under any circumstance.

  16. Variance by rsilvergun · · Score: 4, Interesting

    Is usually around 5mph. It's difficult to keep a car at a rock solid 35mph, even for a computer. Changes in elevation can quickly alter your speed and religiously adjusting for it isn't even always the safest thing to do.

    One of the hard lessons I had when driving is that if you slow down too much aggressive or stupid drivers will take that as a signal to go. My first accident was a t-bone where a girl hit me because she was trying to do a left into a busy road. I saw her start to move and put on my breaks. She saw me coming and did the same, but then saw me breaking and decided this somehow meant I was going to come to a complete stop in the middle of a busy street (the only option that would have stopped the accident by then). If I had not breaked she wouldn't have gone and the accident wouldn't have happened.

    What I'm saying is there's such a thing as too much caution. Now, maybe if we can get the meatbags off the road that won't be true anymore.

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  17. defensive driving by fluffernutter · · Score: 3, Insightful

    How far do these cars look ahead? In defensive driving, they teach you to look WAY up the road. 150 yards back from the intersection, you are more likely to see people running onto the road than 5 yards from the intersection; it may just be a flash of them seen between vehicles up ahead. Are these cars properly watching as they pull up? They should have to submit high definition video from the moment the car starts to when it stops, from the perspective of a driver. If that person that it hits becomes visible at any time and the AI doesn't show any reaction in some way, "she ran out in front of the car" isn't good enough if you're only paying attention 20 feet before the intersection. I know some people don't notice these things, but a lot of people do and it prevents accidents. I would rather have autonomous cars be modeled after defensive driving techniques and I am concerned that they are not.

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  18. Re: Not Likely by green1 · · Score: 4, Insightful

    Or maybe the person wasn't doing anything that would appear to be a problem until they suddenly changed direction immediately in front of the car?

    You can't have the vehicle assume that all people have a death wish and are likely to dive in front of the car at any moment. If you program it like that it will never be able to move if there are pedestrians anywhere nearby. You have to assume that the person will behave in a somewhat rational way or your car will never be able to actually get anywhere.

    I had an incident a while back where I was driving on a residential road at fairly slow speed, there was a kid running all out on the sidewalk beside me, I was watching him. As I passed him, without looking, he made an abrupt 90 degree turn straight in front of my truck. I slammed on the brakes and barely stopped. Had he turned 1/4 second later I wouldn't have been able to stop in time, had he turned 1/2-1 second later the best computer wouldn't have been able to stop in time. But there was also no reason to stop or slow down until he'd already made the 90 degree turn, as it was a highly unlikely thing for him to do. It was illegal, it was dangerous, and it wasn't something you'd expect anyone to do. I thought about it a lot afterwards, and have many times been in similar situations but where the kid didn't make that 90 degree turn. There's just no way I can justify driving with the assumption that every person on the sidewalk, median, lawn, etc, could at any time make that abrupt turn in front of me. I'd never get anywhere, and I'd likely get in a different type of situation caused by the road rage from any driver behind me.

    Not all collisions are preventable. They never will be, and no technology can ever prevent all collisions. What we can do is prevent all AVOIDABLE collisions, and doing that would save millions of lives. Is that not worth doing, even if a few UNAVOIDABLE collisions still remain?