Climate Regionalization of Asphalt Pavement Based on the K-Means Clustering Algorithm

Table 1

Explanation of variance of each principal component.

Factors	Eigenvalue	Variance contribution rate (%)	Cumulative variance contribution rate (%)
1	4.175	46.389	46.389
2	2.709	30.100	76.489
3	1.073	11.926	88.415
4	0.547	6.075	94.490
5	0.190	2.109	96.599
6	0.171	1.898	98.497
7	0.062	0.690	99.186
8	0.051	0.571	99.757
9	0.022	0.243	100.000