There is, I believe, a certain amount of risk simply be being on the road at all. No self-driving car is going to prevent that. What I'd like to know, though,

There is, I believe, a certain amount of risk simply be being on the road at all. No self-driving car is going to prevent that. What I'd like to know, though, is that as self-driving cars become developed, the labs are calculating the risk factors of various intersections, streets, exchanges, etc. That is, different roads can be analyzed by the robot cars and independently assigned a risk factor for a given section of street. The resulting impact to traffic engineering and city resource prioritization could be a very interesting side-effect to the introduction of self-driving cars.