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

Table 2

Linguistic scales of degree of impact.

Semantic scale	Corresponding TFNs
Absolutely serious (AS)	(0.8, 0.9, 1.0, 1.0)
Very serious (VS)	(0.7, 0.8, 0.8, 0.9)
Serious (S)	(0.5, 0.6, 0.7, 0.8)
Average (A)	(0.4, 0.5, 0.5, 0.6)
Unserious (U)	(0.2, 0.3, 0.4, 0.5)
Very unserious (VU)	(0.1, 0.2, 0.2, 0.3)
Absolutely unserious (AU)	(0.0, 0.0, 0.1, 0.2)

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