People can die from rear-end collisions as well, though. It's possible that Uber did the calculations based on the rates of each occurrence and concluded it wou

People can die from rear-end collisions as well, though. It's possible that Uber did the calculations based on the rates of each occurrence and concluded it would be more likely for a fatality to occur from a false positive emergency brake than from running over an obstacle. Personally, I doubt that they really considered that; I believe that their software was rushed, flawed, and totally not ready for real-world driving. But I don't think it's a certainty that false positive emergency braking is always better than running over obstacles, especially if "running over obstacles" is determined to be a sufficiently rare event.