Fig. 6From: On the variation of the crash risk with the total number of bicyclistsa The normalized estimated risks (black crosses) per month. The total 14-year average per month is indicated by blue squares. b Linear fit (with intercept) to a negative binomial regression of the bicycle collision numbers by the normalized estimated monthly bicycle volumes. c Normalized estimated monthly risks with least squares fit for the same predictor as in (b)Back to article page