Fuzzy Decision Research on Safety of Elevated Sections of Pakistan Metro Orange Line Based on MRO Status
To monitor the MRO(maintenance,repair,operation)status of the Orange Line elevated section of the Lahore Metro in Pakistan,which is threatened by ground subsidence funnel zone,a fuzzy decision-making problem for the safety of the elevated section of the subway based on the MRO status was studied.The MRO status level and MRO threat level for subway elevated sections,and form a risk level matrix for subway elevated sections based on MRO status were proposed.A MRO threat decision-making model for the elevated section of the subway was constructed to chose the optimization of moni-toring equipment layout in the Lahore ground settlement funnel area of the elevated section of the sub-way,and the coefficient expansion transformation method to avoid possible failure of fuzzy decision-making was used.The research results provide a reference for the safety research of subway elevated sections in the ground subsidence funnel area.
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