Research Article

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

Table 6

Prior probabilities of basic events based on SAM.

Basic eventLinguistic expressionsAggregated expert decisionDefuzzed possibilityPrior probability

0.26190.45240.45240.64290.45240.0035
0.21210.39020.39020.56820.39020.0021
0.20150.37690.37690.55230.37690.0019
0.02720.06800.14080.2544
000.10000.2000
0.05080.12690.17610.3015
0.05610.14020.18410.3121
0.04390.10980.16590.2879
0.10000.25000.25000.4000
0.07350.18390.21030.3471
0.07810.19520.21710.3562
0.01960.04910.12950.2393
0.32630.50570.50570.68510.0052
0.07810.19520.21710.3562
0.08040.20090.22050.3607
0.45450.62880.62880.80300.0117
0.10000.25000.25000.4000
0.08040.20090.22050.3607
0.10000.25000.25000.40000.25
0.08040.20090.22050.3607
0.07810.19520.21710.3562