But the biggest cause of road accidents in the UK today? The statistics are quite clear on this and it's "driver error or reaction". It's listed by police as a factor in more than 65 per cent of fatal crashes and the heading covers a multitude of driving sins many of which you're probably on first-name terms with. Topping the charge sheet is failing to look properly (the Smidsy factor – "Sorry mate, I didn't see you', relevant in per cent of fatals involving driver error), followed by "loss of control" (34 per cent) which, says Greig, often means leaving yourself with "nowhere to go" after entering a bend or other situation, too quickly. Other errors include "poor turn or manoeuvre" (12 per cent) and "failed to judge other person's path or speed" ( per cent.).