Streets per node standard deviation

Variable Definition

Measures the distribution of the number of streets that meet at each intersection of the street network. Each intersection (a point where more than 2 streets meet) becomes a node of the network and each street segment connecting two intersections becomes an edge in the network. The standard deviation of the number of physical streets (i.e., edges in the undirected representation of the graph) that emanate from each intersection and dead-end. Interpretation: Higher values mean more variability in the number of incoming edges (streets) for each node in the network; the statistical and spatial distributions of number of streets per intersection characterize the type, prevalence, and dispersion of intersection connectedness in the network. Year of data: September 2017 for L1_AD, January 2018 for L2.