Study on Grey Correlation Degree Decision-Making Model for Investment Scheme on High-Grade Highways in Western China

Table 12

Table of critical decision indexes determined with 3 weighting methods.

Weighting method	Measurement object	Critical decision index
		Class-2 indexes	Class-3 indexes
Combination weight process	Technical advancement	Adaptability of natural conditions A1	Geologic factor A12
		Adaptability of social conditions A2	Talent pool A23
		Construction technology capability B2	Technical capability of roadbed, pavement, and water-proofing drainage construction B21
	Economical rationality	Environmental treatment effect E1	Water pollution treatment rate E11
		Ecological protection effect E3	Biological survival rate E31
AHP	Technical advancement	Construction technology capability B2	Technical capability of bridge and culvert construction B23
	Economical rationality	Environmental treatment effect E1	Water pollution treatment rate E11
		Ecological protection effect E3	Biological survival rate E31
Entropy weight method	Technical advancement	Construction technology capability B2	Technical capability of roadbed, pavement, and water-proofing drainage construction B21
	Economical rationality	Financial evaluation conclusion C2	ROE C22,
			FNPV C24
			ROI C26