Originally Posted by
livedarklions
My feeling about crash stats is any ratio calculations are likely garbage in garbage out because the reporting is so non-systematic and variables (like mirror usage) unquantifiable because no one is recording it.
Sadly, I agree with you. My only supporting evidence (case report, n=1) is 27,000 miles of commuting in Chicago with consistent mirror use and no rear strikes. Not much to go on, but I *have* had a few evasive actions based on the mirror, so do I believe I am safer.
