Research on AHP Averaged Structure Method and PPCE Gradient Dimension Reduction Method to Evaluate Railway Emergency Plans Comprehensively

In this paper, based on the study of the emergency rescue system and emergency rescue command information systems in Qinghai-Tibet railway, with qualitative and quantitative analysis, theory and practice analysis, from local to the overall comprehensive analysis methods, using the questionnaire survey and local investigation mode, the comprehensive evaluation of emergency plans in railway is studied in-depth and systemically. Based on the establishment of comprehensive evaluation index system of railway emergency plan, the traditional AHP weights making method and PPCE model were improved, and the AHP averaged structure method and PPCE gradient dimension reduction method were established, so as to achieve the goal that the object which contains a complex index system and a lot of qualitative evaluation data can be evaluated comprehensively. It has been applied in the evaluation of comprehensive emergency plans, special emergency plans and station emergency plans in Qinghai-Tibet railway. At the same time, this comprehensive evaluation method can be applied in other industries, offering a gist for other industries to evaluate and perfect emergency plans.