Risk Analysis on Leakage Failure of Natural Gas Pipelines by Fuzzy Bayesian Network with a Bow-Tie Model

Table 5

Weighting criteria of four experts.

Expert	Professional position	Service time	Education level	Weighting score
Expert 1	Senior academic	≥20 years	PhD	0.32
Expert 2	Junior academic	15–20	PhD	0.3
Expert 3	Engineer	5–10	PhD	0.21
Expert 4	Junior academic	15–20	Bachelor	0.17