动车组机械师胜任特征及其对安全绩效的影响研究

Research on EMU Mechanics Competency and Its Impact on Safety Performance

为确保动车组列车安全运行,采用行为事件访谈法,获取动车组机械师胜任特征指标。运用探索性因素分析和验证性因素分析方法,构建包括心理素质、能力素质、知识水平、职业品质、生理素质5个维度、18个胜任特征指标的动车组机械师胜任特征模型。通过相关分析和回归分析,探讨了动车组机械师胜任特征对安全绩效的影响及在绩效预测中的作用。结果表明,动车组机械师安全绩效、安全任务绩效、安全周边绩效与胜任特征整体水平和各维度之间大部分存在显著正相关,不同维度的胜任特征在动车组机械师安全绩效、安全任务绩效、安全周边绩效的预测中的作用存在差异。

In order to bring up right talents to railway key positions,enhance the quality of personnel skills and safety performance,ensure the trouble-free operation of EMU,indicators of EMU mechanics competency were identified using behavioral event interview.A 5-dimension EMU mechanics competency model was built,with 18 competency indicators,by using exploratory factor analysis and confirmatory factor analysis.The 5 dimensions are psychological quality,ability quality,knowledge quality,professional quality and physiological quality.Impact of EMU mechanics competency on safety performance and its prediction were studied by correlation analysis and regression analysis.The results show that a significant positive correlation exists by and large between safety performance,safety task performance,or safety surrounding performance of EMU mechanics and the overall level of competency,or each of the dimensions,and that different dimensions influence prediction of safety performance,safety task performance and safety surrounding performance differently.