Does anybody have a citation for accidents per mile for a human driver? I've seen, uncited, 1/200,000 but when I tried to verify this I came up with 2,967 billion miles traveled in 2010 [0] and 5,419,000 crashes total (based on police reports for: property damage, injury, or fatality) [1]. Which, unless there is an error in my math, is roughly 1 crash every 550,000 miles.

0. http://www-fars.nhtsa.dot.gov/Trends/TrendsGeneral.aspx

1. http://www-nrd.nhtsa.dot.gov/Pubs/811552.pdf table 4