Google's Autonomous cars complete 300,000 miles without an accident
Too bad it doesn't mention if this is better than a human or not.  So, I decided to figure it out...2.9 trillion miles driven in 2009 http://www.fhwa.dot.gov/ohim/tvtw/09dectvt/09dectvt.pdf10.8 million traffic accidents in 2009 http://www.census.gov/compendia/statab/2012/tables/12s1103.p...If my math is correct the average american can expect to get in an accident every ~250,000 miles driven, (NYC to LA 90 times) so this does seem to be an improvement if all else is equal (which I'm sure is not the case!).