基于组合赋权-可拓云模型的黄土山区公路运营安全韧性分析评价研究OA

To comprehensively and objectively evaluate the operational safety resilience of ordinary roads in loess mountainous areas,this study considered factors such as regional socioeconomic conditions,natural environment,road conditions,and monitoring and early warning.Based on a combined weighting method and matter-element extension cloud model,an evaluation model for operational safety resilience of ordinary roads in loess mountainous areas was established.The model constructed an evaluation index system from five aspects:Driving force,Pressure,State,Impact,and Response(DPSIR).The G1 sequence analysis method and entropy weight method were used to determine the combined weights of the evaluation indicators.The extension cloud model was combined to establish evaluation grade boundaries for qualitative and quantitative indicators,and extension cloud analysis was conducted to determine the final operational safety resilience level of the road.The results show that,the operational safety resilience level of the provincial road is strong resilience,and the calculation results are consistent with reality,demonstrating that textension cloud model is effective and feasible in solving such problems.