Abstract
The behaviour in front the risks, as described in this article, cannot be excluded from the road traffic. The conditions of behaviour in traffic are indeed specific to the situations involving risks. From this point of view, the fact of considering the behaviour in front of risk as a variable diagnosis for the appraisement of the fitness to drive can be no means be the primary purpose. The calculation of the behaviour should for the individual rather be made easier by informing him systematically, at the same time permitting a more objective and less irrational estimate of the circumstances of the risks.