Design of a High-Speed Railway Passenger Train Operation Scheme considering Survivability of the Network

Table 2

Calculation results of principal component analysis.

Total variance interpretation
Composition	Characteristics of the root	Percentage of variance (%)	Cumulative
Degree centrality	1.796	59.88	59.88%
Closeness centrality	0.717	23.90	83.77%
Betweenness centrality	0.487	16.23	1