Multidimensional and Interactive Assessment Model of Large-Scale Infrastructure Project and Its Demonstration Based on Double Utility

Table 5

Scaling method to judge the importance of risk factor .

Scale	Meaning
1	Two factors are equally important
3	One factor is slightly more important than the other
5	One factor is obviously more important than the other
7	One factor is highly more important than the other
9	One factor is extremely more important than the other
2, 4, 6, 8	Midvalue of the above two adjacent judgments
Reciprocal	from the comparison of factor with factor , from the comparison of factor with factor