A Maintenance Management Mode Decision Method for Metro Engineering Vehicles Based on Set-Valued Statistics and TOPSIS

Various types of engineering vehicles are essential for metro line operation and maintenance, the suitable maintenance management mode will effectively reduce costs and improve maintenance efficiency. In this paper, a decision method is proposed for maintenance management mode, and a decision indicator system is constructed. The decision indicator values are obtained based on set-value statistics, the TOPSIS algorithm is used to select the optimal mode, and the hierarchical analysis combined with CRITIC is used to obtain the subjective and objective weights. The example analysis verified its effectiveness and feasibility, which provides a theoretical basis to carry out decision-making of maintenance management mode.