The paper reports the results of a questionnaire study which support the assumption that parents judge the risk of traffic accidents to children in residential neighborhoods on the basis of acquired causal schemata related to such accidents. Parents and nonparents of both sexes were asked to judge the risk of a traffic accident occuring to children of different ages living in six familiar residential neighborhoods. These judgments were in all subgroups of subjects found to correlate with ratings of the strengths of various causes (child itself, parents, environment, drivers, and bad luck).