How Safe Is Safe Enough?: Measuring and Predicting Autonomous Vehicle Safety

How Safe Is Safe Enough for Autonomous Vehicles? The most pressing question regarding autonomous vehicles is: will they be safe enough? The usual metric of "at least as safe as a human driver" is more complex than it might seem. Which human driver, under what conditions? And are fewer total fatalities OK even if it means more pedestrians die? Who gets to decide what safe enough really means when billions of dollars are on the line? And how will anyone really know the outcome will be as safe...