Samenvatting
At the end of 1985 a before study has been carried out into the effects of the general periodical vehicle inspec- tion on the nature and extent of the Dutch car park. This before study has resulted in the set up of a mathematical model by which the expected results could be calculated. The model has four parameters from which the values must be estimated to calculate these future effects. The results are presented here. See also B 29218 for the computer program.