The retrieved R2 value  of 0.068 shows no improvement to what was obtained using the scatter plots. The highest residual was of 335.33 m, the smallest one of 0.2 m, illustrating the high variability in the prediction of the minimal distance to the nearest road- traffic accident. Looking at Fig. 4, which represents the residues of the multivariate linear regression, it seems that the more extreme values are rather located at the edges of the municipality of Vernier, or in the isolated inhabited zones.