Statistical Characteristics and Community Analysis of Urban Road Networks

Table 4

Summary of regression on six indices for nine URNs.

Indices	In-degree distribution		Out-degree distribution		Weighted closeness distribution		Weighted betweenness distribution
Function type	Power law,	Power law,	Exponential,	Power law,	Power law,	Power law,	Exponential,	Power law
Parameters
City
Austin	2.549	0.99	2.55	0.99	−135.1	0.88	0.6563	0.98
Chicago	3.253	0.99	3.254	0.99	−262	0.92	0.6195	0.99
Philadelphia	6.981	0.99	7.002	0.99	−118.9	0.88	0.5901	0.99
Anaheim	2.315	0.99	2.321	0.99	−167300	0.99	0.7496	0.99
Winnipeg	4.559	0.99	4.539	0.99	−48.93	0.90	0.7811	0.98
Berlin	2.879	0.97	2.87	0.97	−72080	0.96	0.4645	0.99
Barcelona	2.037	0.98	2.471	0.99	−34.03	0.95	0.7355	0.99
	0.2197	0.89	0.2193	0.91
Terrassa	2.002	0.98	1.776	0.98	−20.27	0.99	0.7356	0.99
Hessen	0.9974	0.99	0.9998	0.99	−112.7	0.99	0.7174	0.98

The in-degree and out-degree distributions of Barcelona follow a two-regime power law.