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建立了铁路行车安全影响因素的层次结构模型，运用层次分析法计算了各层元素的单排序权重和总排序权重，并以此结果分析了影响铁路行车安全的因素．最终确定系统的薄弱环节和关键性因素
The hierarchical structure model of railway driving safety factors is established. Using AHP method, the single sorting weight and total sorting weight of each layer are calculated, and the factors affecting the railway driving safety are analyzed. Ultimately determine the system’s weak links and key factors