Linguistic decision analysis: steps for solving decision problems under linguistic information
Fuzzy Sets and Systems - Special issue on soft decision analysis
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Identification, quantification and assessment of uncertainty are essential in the petrochemical industry. During the construction or maintenance phases of an oil transportation pipe line, there is a high degree of risk for accidents, which would be fatal to the human resources and the environment. The Society of Consulting Engineers are subject matter specialists in Iran who are required to provide risk assessment services for oil and gas field pipe line projects. The purpose of this study was to survey 30 Consulting Engineer experts for their priorities on most likely risks, which occur in oil pipelines during construction or maintenance modes. The risk categories were informed from a literature review theory deduction. Then the Analytical Hierarchy Procedure was used to normalize the uncertainty estimates and to rank the risk occurrence likelihood. The results indicated that gas compressors, ancillary facilities, storage tanks and pumping stations, respectively, had the highest risk level according to the experts.