Risk Assessment of City Gas Pipeline Based on Uncertain Analytic Hierarchy Process
2011
Nowadays the Analytic Hierarchy Process (AHP) approach is often applied to risk assessment of city gas pipelines. However, it cannot reflect the fuzziness and uncertainty of the factors. In this paper, an uncertain AHP is applied to the multistage synthesis fuzzy assessment of pipelines using the principle of uncertain judgment. The paper sets up an objective optimization model for the unknown factor weights among the judgment matrix of uncertain hierarchy analysis. The paper seeks the optimized value of interval weight and obtains the assessment result for pipeline risk grade by grade membership function. The practical application validates the feasibility of uncertain analytic hierarchy process for the risk assessment city gas pipeline network.
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