A Century of Topological Coevolution of Complex Infrastructure Networks in an Alpine City

Table 3

Topological dual mapped properties (n: number of nodes; e: number of edges; : mean node degree; : maximum node degree; and : node degree variance) over time for the WDN, UDN, and RN.

Year	n			e
	WDN	UDN	RN	WDN	UDN	RN	WDN	UDN	RN	WDN	UDN	RN	WDN	UDN	RN
1910	451	223	-	535	356	-	2.37	3.19	-	15	16	-	2.84	4.59	-
1920	577	321	-	703	467	-	2.44	2.91	-	22	19	-	3.01	4.09	-
1930	745	354	-	907	510	-	2.43	2.88	-	14	19	-	2.45	4.02	-
1940	968	436	849	1,171	639	1,288	2.42	2.93	3.03	17	19	32	2.50	4.31	8.97
1950	1,056	462	1,278	1,284	676	1,868	2.43	2.93	2.92	17	19	52	2.46	4.24	10.70
1960	1,223	715	1,420	1,512	1,009	2,093	2.47	2.82	2.95	32	23	54	3.17	4.07	11.55
1970	1,513	1,042	1,716	1,913	1,441	2,575	2.53	2.77	3.00	37	22	65	3.55	3.71	13.13
1980	1,641	1,236	1,937	2,097	1,700	2,955	2.56	2.75	3.05	34	22	71	3.67	3.70	15.23
1990	1,719	1,318	1,993	2,203	1,821	3,040	2.56	2.76	3.05	34	30	74	3.90	4.17	15.37
2000	1,764	1,431	2,081	2,272	1,970	3,172	2.58	2.77	3.05	34	31	74	3.97	4.33	15.59
2010	1,769	1,585	2,295	2,293	2,226	3,479	2.59	2.81	3.03	34	35	74	3.98	4.75	15.82