Safety risk evaluation of highway construction in permafrost region based on ANP and Matter-Element Extension Model
The construction of highway in permafrost region is highly challenging due to the construction process being impacted by various risks and their interconnected effects.For an objective and comprehensive evaluation of construc-tion safety risks,it is necessary to establish a risk evaluation index system tailored to specific scenarios,taking into ac-count the interactions among indicators,in order to derive a quantified risk value.Therefore,this study proposed a risk evaluation model that integrated the Analytic Network Process(ANP)with the Matter-Element Extension Model.Firstly,a three-level safety risk evaluation index system for highway construction in permafrost region was established,compris-ing an overall goal,four first-level indicators,and twelve second-level indicators.Secondly,an ANP network structure model that captured the interrelationships among indicators was developed to calculate the comprehensive weights of in-dicators at all levels.Finally,a multi-level extension evaluation result was derived based on the Matter-Element Exten-sion Model.A case study reveals that the construction safety risk level of the highway in the permafrost region is classi-fied as Level 3(relatively high risk),which aligns with actual construction conditions.Consequently,targeted recommen-dations are further proposed to enhance construction safety.
highway in permafrost regionconstruction safety riskMatter-Element Extension ModelAnalytic Network Process(ANP)
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