[Effects of stress and strain on health status and traffic behavior in professional drivers].

The paper is based on the expectation, that the short and middle term sequences of strain in connection with the job demands on professional motorists have an influence on the traffic safety. Increasing rush, higher pretensions on the carriers for instance just-in-time-production, 24-hours-service and the competition between the countries of the EEC raise the level of demands. New arrangements between the countries of the EEC allow longer shifts. In extreme cases 84 hours per week are possible. The aim of our examination consists in showing the real working-conditions of professional drivers and their effects on the attitude to car-driving and to get information on the psychosomatic state of the drivers.