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Showing posts from May, 2019

Ethical Problems That Matter for Self Driving Cars

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It's time to get past the irrelevant Trolley Problem and talk about ethical issues that actually matter in the real world of self driving cars.  Here's a starter list involving public road testing, human driver responsibilities, safety confidence, and grappling with how safe is safe enough. Public Road Testing.  Public road testing clearly puts non-participants such at pedestrians at risk. Is it OK to test on unconsenting human subjects? If the government hasn't given explicit permission to road test in a particular location, arguably that is what is (or has been) happening. An argument that simply having a "safety driver" mitigates risk is clearly insufficient based on the tragic fatality in Tempe AZ last year.  In general, see:  https://grants.nih.gov/policy/humansubjects.htm A credible, independently reviewed argument that a road testing campaign provides adequate safety might be enough. But how transparent should that process be? Should we just take

Car Drivers Do More than Drive

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How will self-driving cars handle all the non-driving tasks that drivers also perform?  How will they make unaccompanied kids stop sticking their head out the window? Hey Kids -- Don't stick your heads out the window! The conversation about self-driving cars is almost all about whether a computer can safely perform the "dynamic driving task." As well it should be -- at first.  If that part isn't safe, then there isn't much to talk about. But, looking forward, human drivers do more than drive. They also provide adult supervision (and, on a good day, mature judgement) about the operation of the vehicle in other respects. If you've never heard the phrase "stop doing that right now or I swear I'm going to stop the car!" then probably you've never ridden in a car with multiple children.  And yet, we're already talking about sending kids to school in an automated school bus . Presumably the point is to avoid the cost of the human super

Other Autonomous Vehicle Safety Argument Observations

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Other AV Safety Issues: We've seen some teams get it right. And some get it wrong. Don't make these mistakes if you're trying to ensure your autonomous vehicle is safe. Defective disengagement mechanisms. Generally this involves the ability of an arbitrary fail-active autonomy failure to prevent successful disengagement by a human supervisor. As a concrete example, a system might read the state of the disengagement activation mechanism (the “big red button”) as an I/O device fed directly into the primary autonomy computer rather than using an independent safing mechanism. This is a special case of a single point of failure in the form of the autonomy computer. Assuming perception failures are independent. Some arguments assume independent failures of multiple perception modes. While there is clearly utility in creating a safety case for the non-perception parts of an autonomous vehicle, one must argue rather than assume the safety of perception to create a credi