Police Release Video of Fatal Uber Autonomous Car Collision

Even though they're made of retroreflective material, only two lane divider dashes at a time can be seen in the video, indicating something like 50 feet of visibility. Stopping from 38 mph takes 70+ feet from the time the brakes are applied (and human reaction time adds quite a bit more). Things (people, animals, stopped cars, road hazards) appear in the road fairly routinely. If you can't stop inside the area you can see, you're operating your vehicle recklessly.