I'd love it if there's a team of geeks churning out a use case for every single conceivable road related event:
Scenario 1 - Pedestrian forgets to look before crossing
Scenario 2 - Car in front slams all on
.
Scenario 44,765 - A tree is struck by lightning and falls across the road
.
.
Scenario 8,125,245 - An extreme sports enthusiast is zorbing on the hillside next to the road and at the bottom of the slope there's a trade show for giant trampolines...
I'm quite excited by the prospect of driverless cars, it'll remove people who have absoletly no interest in driving from driving and the new driver won't get distracted by a girl in a tight dress, or a particularly cute cat, or a billboard advertising a sale at ShopX, or get tired or bored, or re-apply eye liner, or urgently need to tweet that it just saw that-guy-from-that-thing-on-the-TV-last-year walking down the street
The google driverless cars (I think there's about ten of them on the roads of California at any one point) have done over 700,000 miles accident free. They can "see" in 360 degrees and track hundreds of objects all at once. Sadly it is reported to be extremely capable at spotting cyclists too