The distances to the nearest road-traffic accident as predicted using the locations of the houses of the people in need are presented in the choropleth map of Fig. 8. A discernible association exists between the the warmth of the color and the concentration of accidents (warmer color meaning shorter distances to the nearest road-traffic accident). In almost all dark red cells some accidents did take place, with the exception of few cells being situated either at the border of the municipality or in isolated places. There are however several errors in the colder colored cells, with several cells containing accidents but displaying distances higher than 80 m to the nearest accidents, which is not possible, the centroid being situated at 50 m of the borders of the cell.