中国铁道科学2017，Vol.38Issue(2)：138-144,7.DOI:10.3969/j.issn.1001-4632.2017.02.21
基于FTA-AHP的铁路安全风险综合评估方法
Synthesized Risk Assessment Method for Railway Safety Based on FTA-AHP Analysis
摘要
Abstract
Evaluation results are one-sided with either Fault Tree Analysis (FTA) or Analytic Hierarchy Process (AHP) alone for safety assessment.Accordingly,the synthesized FTA and AHP assessment method is put forward for railway risk assessment.The cause events of target risk event are determined by FTA method to construct FTA model.The basic cause events in FTA model are classified and concluded to set up AHP model.The two factors in the criterion or index layers of AHP model are compared respectively in terms of importance to build judgment matrix for each layer.If consistency check is OK,the eigenvector in each layer of judgment matrix would be used as the weight vector for the corresponding factor in the same layer.Combined with the safety status score of the factor,the safety status score of the corresponding factor in the upper layer would be obtained.The calculation as above would be done layer by layer,and finally the synthesized safety assessment result for the target would be got.The feasibility and effectiveness of the proposed method is verified by the comprehensive safety risk evaluation for the braking system of high speed train.Results show that the proposed method not only can analyze both the fault reasons for railway system and their influence,but also evaluate comprehensively the safety state for the whole system,and reflect fully the risk status of the system.关键词
铁路系统/故障树分析/层次分析/安全风险/综合评估Key words
Railway system/Fault tree analysis/Analytic hierarchy process/Safety risk/Synthesized assessment分类
交通工程引用本文复制引用
刘敬辉..基于FTA-AHP的铁路安全风险综合评估方法[J].中国铁道科学,2017,38(2):138-144,7.基金项目
中国铁路总公司科技研究开发计划项目(2016F024,2015F030,2014YJ090) （2016F024,2015F030,2014YJ090）
