Study on the Evaluation Method of Subgrade Slope Green Protection Effect in Dry-Hot Valley of Sichuan-Tibet Railway

Table 7

Judgment matrix for first-level indexes.

C	C1						C2						C3
C1	1	1	1	1	1	1	1/2	1/3	1/3	1	3	1/2	3	2	2	3	4	5
C2	2	3	3	1	1/3	2	1	1	1	1	1	1	4	7	4	2	3	6
C3	1/3	1/2	1/2	1/3	1/4	1/5	1/4	1/7	1/4	1/2	1/3	1/6	1	1	1	1	1	1