Evaluation of preventive maintenance for asphalt pavement utilizing the cloud model and enhanced evidence theory
In light of the inherent ambiguity,stochastic nature and uncertainties characterizing the evalua-tion process of preventive maintenance,we introduced a novel methodology grounded in the cloud model coupled with an enhanced evidence theory.A comprehensive evaluation metric system was delineated,en-compassing five critical dimensions:structural integrity of the pavement,functional performance,utiliza-tion patterns,prevailing climatic conditions,and the resultant benefits derived from preventive mainte-nance.Leveraging the cloud model,the credibility of each evaluative metric within the reference cloud was ascertained,subsequently being translated into the basic probability assignment inherent in the evi-dence theory.Addressing a prevalent limitation in the conventional evidence theory,where integrating po-tent conflicting evidence might yield incongruent outcomes,the Jousselme evidence distance was em-ployed to discern conflicting evidence,followed by the application of a rectification coefficient for adjust-ments.Incorporating insights from the game theory,a synergistic amalgamation of subjective and objec-tive weights pertaining to the evaluation metrics was achieved.This refined game-theoretical approach could facilitate the computation of optimal weight coefficients,yielding an aggregate weightage.The rec-tified evidence,in conjunction with the game-theoretical weightage of each evidence segment,underwent a weighted computation to derive the final evaluative outcome.Empirical application of the proposed model on six distinct grades of asphalt pavement sections underscored its efficacy in preventive mainte-nance evaluation.The outcomes not only resonated with empirical observations but also,when juxta-posed against traditional fuzzy comprehensive evaluations and conventional evidence theory assess-ments,showcased its superior scientific rigor,effectiveness,and logical coherence.
asphalt pavementpreventive maintenancemaintenance decisiongame theorycloud mod-elevidence theory
万方数据
维普
