alt Hacker NewsGood here is in reference to the average crash statistics.
Most drivers are safer than the average, because you can’t go below 0 and some people are really bad.
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You cannot measure driver goodness (skill and vigilance) by looking at crash statistics, because crashes are definitively circumstantial. Most very clearly bad/dangerous/unskilled/unvigilant operations of automobiles do not lead to crashes.
It looks like the median/mode is 1-2 car accidents (50% of drivers), and the average is 3-4. 25% of drivers have no accidents (as far as insurance companies are concerned, ie, no claims or police reports).
I'm curious how this looks with various ways of normalizing for amount driven; is that no-accident crowd the quartile of drivers who don't drive very much? The biggest factor in being in the opposite group (the 10% of drivers with 50% of accidents) is "drive all the time, commercially or otherwise".
I know someone who's been at fault in at least 12+ car accidents, and she keeps driving (as someone else put it you almost have to drive in the USA). There are colossally bad drivers out there and we don't yet have a viable system for keeping them off the road.