Hur bra kan man prediktera olyckor med fotgängare och cyklister i korsningar ? = Prediction models for accidents at junctions where pedestrians and cyclists are involved : how well do they fit ?

The coefficient of determination, R2, i.e. the squared correlation coefficient between observed and fitted values, constitutes a measure indication how well a model predicts data such as the number of accidents. The study describes prediction models for accidents involving pedestrians and cyclists at junctions. In addition, comparisons are made between actual R2 values obtained and maximal R2 values, calculated both theoretically and with the aid of simulation. (Author/publisher).