Fig. 6
From: Urban morphogenesis analysis based on geohistorical road data
Orthogonality indicator calculated for historical road networks of a Dijon in 1790, b Besancon in 1786, and c Pontarlier in 1692. The histograms represent the distribution of orthogonality values. The dashed black line is the fitting of each histogram with a Gaussian mixture. The bar colors in the histograms indicate the same classification as in the indicator mapping