Using Fuzzy Multiple Criteria Decision-Making Approach for Assessing the Risk of Railway Reconstruction Project in Taiwan

Table 3

Linguistic scales of occurrence likelihood.

Semantic scale	Corresponding TFNs
Absolutely likely (AL)	(0.8, 0.9, 1.0, 1.0)
Very likely (VL)	(0.7, 0.8, 0.8, 0.9)
Likely (L)	(0.5, 0.6, 0.7, 0.8)
Average (A)	(0.4, 0.5, 0.5, 0.6)
Unlikely (U)	(0.2, 0.3, 0.4, 0.5)
Very unlikely (VU)	(0.1, 0.2, 0.2, 0.3)
Absolutely unlikely (AU)	(0.0, 0.0, 0.1, 0.2)

Note: this table is revised from [32] defined.