Figure 5

Rose diagrams of the frequencies of streets with different orientations (shown by different sectors).
These diagrams serve to illustrate general circular-data presentations using rose diagrams; they are not based on data from the present paper. (a) Rose diagram showing a directional or asymmetric orientation distribution. (b) Rose diagram showing a bidirectional or symmetric orientation distribution. The eastern half circle (indicated by a red, broken line) spans 180° and represents a semi-circle rose diagram (www.holcombecoughlinoliver.com).