Samenvatting
The data on which road safety research relies are unreliable, and its objectives confused. The road safety literature is replete with claims for the efficacy of a wide variety of safety measures; compulsory wearing of seat belts and crash helmets, speed and blood alcohol limits, and road safety training are but some of the measures for which substantial accident reductions have been claimed. But none of these claims stands uncontested; advocates of engineering solutions are dismissive of the claims of the believers in behaviour modification, and vice versa, and some are critical of both.