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There's Growing Evidence Tesla's Autopilot Handles Lane Dividers Poorly (arstechnica.com)

An anonymous reader writes: Within the past week, two Tesla crashes have been reported while Autopilot was engaged, and both involved a Tesla vehicle slamming into a highway divider. One of the crashes resulted in the death of Walter Huang, a Tesla customer with a Model X. The other crash resulted in minor injuries to the driver, thanks largely to a working highway safety barrier in front of the concrete divider. Ars Technica reports on the growing evidence that Tesla's Autopilot handles lane dividers poorly: "The September crash isn't the only evidence that has emerged that Tesla's Autopilot feature doesn't deal well with highway lane dividers. At least two people have uploaded videos to YouTube showing their Tesla vehicles steering toward concrete barriers. One driver grabbed the wheel to prevent a collision, while the other slammed on the brakes. Tesla argues that this issue doesn't necessarily mean that Autopilot is unsafe. 'Autopilot is intended for use only with a fully attentive driver,' a Tesla spokesperson told KGO-TV. Tesla argues that Autopilot can't prevent all accidents but that it makes accidents less likely. There's some data to back this up. A 2017 study by the National Highway Transportation Safety Administration (NHTSA) found that the rate of accidents dropped by 40 percent after the introduction of Autopilot. And Tesla argues that Autopilot-equipped Tesla cars have gone 320 million miles per fatality, much better than the 86 million miles for the average car. These figures don't necessarily settle the debate. That NHTSA figure doesn't break down the severity of crashes -- it's possible that Autopilot prevents relatively minor crashes but is less effective at preventing the most serious crashes. And as some Ars commenters have pointed out, luxury cars generally have fewer fatalities than the average vehicle. So it's possible that Tesla cars' low crash rates have more to do with its wealthy customer base than its Autopilot technology. What we can say, at a minimum, is that there's little evidence that Autopilot makes Tesla drivers less safe. And we can expect Tesla to steadily improve the car's capabilities over time."

6 of 238 comments (clear)

  1. Sigh, I just don't get it by zippo01 · · Score: 4, Insightful

    What is the point to an autopilot if I have to be fully attentive and ready to take over? I would rather just drive then worry about missing something. This and the are still have to much uncertainty to waist my time with it. Also dammit if i'm going to die in a car, I want it to be my fault and freaking awesome. "He almost made it, if it hadn't been for that ...."

    1. Re:Sigh, I just don't get it by Anonymous Coward · · Score: 4, Insightful

      If you have to pay attention then autopilot is less than useless. The fact it is in control makes it much more likely you will not be paying attention.

    2. Re:Sigh, I just don't get it by Mr+D+from+63 · · Score: 5, Insightful

      1. Safety. Despite the alarmism in TFA, you are safer using Autopilot than driving yourself.

      Why do people keep claiming this as some kind of fact when they don't have any data to back it up? We've been through the flaws of using the "40%" study, which was supposed to compare before AP vs after AP but 2/3 of the cars in the study didn't have any 'before AP' miles. Not to mention other control features were never accounted for such as Auto Steer.

      Tesla with AP may be a lot safer, but we don't have the data to make that declaration. So please stop abusing statistics.

  2. Re:Sounds like a philosophy 101 question by DatbeDank · · Score: 5, Insightful

    The intentionally misnamed "autopilot"

    I don't know why you think it is misnamed. It is named exactly the same way that aircraft autopilots are. Aircraft autopilots also require an attentive pilot ready to take over, because aircraft autopilots will happily fly the airplane into obstructions, or can fail in a large number of other ways. In fact, "can disable autopilot" is a standard pilot checklist item, and it can be done in half a dozen different ways.

    Seems like the Tesla "autopilot" is named just right.

    I take it you've never flown as a pilot before. No really, it's ok because most people aren't pilots :P

    My roadway is as big as the horizon. My fellow pilots in other planes are several hundred meters if not kilometers away.
    In my car, my fellow drivers are 1.5-2 meters away and my roadway is as big as the city planners decide to make it.

    On larger jets, they have systems that monitor you with transponders and much more. If you're aiming to the ground, the system will shout at you in a Skybus or Boeing jet.

    A few seconds of inattentiveness with autopilot on in a plane won't hurt anyone. Heck I read a book sometimes.
    A few seconds of inattentive in a passenger car (with or without Tesla autopilit) will at best cause a crash or worse kill you.

    Call it cruise control assist and save a few live or call it MuskSense if you want something sexy and to achieve the same thing. Autopilot is just a terrible misnomer for what it really is.

  3. Re:wrong statistic by viperidaenz · · Score: 4, Insightful

    Given that all cars in the 320 million miles/fatality are modern 5 star safety rated and the cars in the 86 million miles/fatality are average cars, you can't make the the assumption that the correlation between incidents and fatalities are the same for both groups.

    If you want to compare Autopilot cars with non-autopilot cars, the cars you compare it to also should have the same standard safety features:
    automatic emergency braking
    a dozen or so air bags
    stability control
    abs
    5 star impact rating
    front and side collision warnings

    All features that are available on other new vehicles.
    Then it's a fair comparison.

  4. Re:Sounds like a philosophy 101 question by Junta · · Score: 5, Insightful

    This all misses the point: the vast majority of people are not pilots, everything they think about 'autopilot' comes from tv shows and media and every thing they deal with that is 'auto' in their lives meaning not having to worry about it.

    Pilots can debate the accuracy of the term given the reality of the situation, but what matters is the lay man's perspective (which is precisely what Tesla is trying to take advantage of).

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