Dynamic Risk Assessment of Karst Tunnel Collapse Based on Fuzzy-AHP: A Case Study of the LianHuaShan Tunnel, China

Table 7

Karwowski fuzzy membership function.

Fuzzy language variable	Membership function
High	0	0	0.1	0.3	0.7	0.9	1
Medium	0	0.2	0.7	1	0.7	0.2	0
Low	1	0.9	0.7	0.3	0.1	0	0
Unknown	1	1	1	1	1	1	1
Undefined	0	0	0	0	0	0	0
More or less high	0	0	0.3	0.5	0.85	0.95	1
Very high	0	0	0	0.1	0.5	0.8	1
Likely	0	0.1	0.5	0.7	0.9	1	1
Unlikely	1	1	0.9	0.8	0.5	0	0
Not likely	1	1	0.5	0.3	0.1	0.1	0

Note. Table 7 is reproduced from Zahabi and Kaber [27].