Many drivers exceed the speed limit
Many drivers drive faster than the posted speed limit. This is the case for all road types as becomes clear from both objective observations and self reported speed behaviour. In addition, people often drive at an inappropriate speed, because they fail to adapt their speed sufficiently to the actual road and traffic conditions. The reasons for speeding are diverse and may relate to temporary motives (e.g. being in a hurry), to more permanent personality characteristics (e.g. risk taking), to human perceptual skills and limitations, as well as to characteristics of the road, the road environment and the vehicle.