"Using data gathered by police and spanning 700,000 accidents from 2005-2009, the Institute of Advanced Motorists (IAM) has analysed, in breathtaking detail, the anatomy of a road accident."
... and it does tell us something most of us already knew:
"For instance, if you look at Government campaigns they seem to say that speed is the number one problem. But illegal speeding – when drivers exceed the posted limit – accounts for only 13.9 per cent of fatal accidents. A bigger cause [15.9 per cent] is going too fast for the conditions – entering a bend too quickly, for instance – when you might well be under the actual speed limit." Neil Greig, IAM.