Fig. 2
From: Urban morphogenesis analysis based on geohistorical road data
Construction method of ways on a network sample: a a sample of road segments with side points and intersections; b construction of a graph with arcs and nodes; c a hypergraph with ways as an alignment of continuous arcs based on the minimum deviation angle and the chosen threshold \({\theta }_{max}=60^\circ\), (for example: Way1 is constructed based on the fact that the angle b between Arc1 and Arc2 is less than the angle c between Arc2 and Arc3.