driver-qualification-handbook-english

2Managing risk in the driving environmentHuman factors alone account for nearly 60 per cent of crashes.However, as shown in the pie chart the combined contribution of human error andenvironmental factors accounts for an additional 26 per cent of all the causes ofcrashes. So being able to deal with changes and challenges in the road environmentis an important skill for all drivers to develop and maintain.Source (7)57%27%6%3%3%2%1%Human factors aloneHuman andenvironmental factorsVehicle andhuman factorsAll three factorsEnvironmentalfactors aloneVehicle factors aloneVehicle andenvironmental factorsNote - these percentages do not add to 100 per cent due to roundingAdverse conditions like bad roads and bad weather rarely cause crashes on theirown – about three per cent of all crashes. Most of the time crashes occur becausedrivers did not adjust to the changed environment. How many times have you seendrivers continue to drive fast in heavy rain or fog or on narrow, winding roads wherethey can’t see oncoming traffic.60Driver qualification handbook