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针对驾驶疲劳致因的多元性和动态性,提出一种铁路机车司机疲劳风险多指标动态评价方法。充分考虑了多方面时变因素对司机驾驶疲劳的动态影响,构建更为合理的评价指标体系;研究相关时变因素指标的客观量化方法,以提高指标取值的准确性;为降低主观因素对多指标赋权的影响,借助改进层次分析法(IAHP)建立综合评价模型,进而实现机车司机在不同作业时段下疲劳风险的动态量化评价。实例分析结果表明,用该方法所得的疲劳风险动态曲线与机车司机的实际作业情况及其疲劳自评量表得分相符。
Aiming at the multiplicity and dynamics of driving fatigue causes, a dynamic index evaluation method for fatigue risk of railway locomotive drivers is proposed. Fully considering the dynamic influence of various time-varying factors on driver fatigue and building a more reasonable evaluation index system; studying the objective quantification method of relevant time-varying factor indexes to improve the accuracy of index values; in order to reduce the impact of subjective factors Multi-indicator empowerment, and builds a comprehensive evaluation model by using the improved analytic hierarchy process (IAHP) to realize the dynamic quantitative evaluation of the driver’s fatigue risk under different operating periods. The case study shows that the dynamic curve of fatigue risk obtained by this method is consistent with the actual operating conditions of locomotive drivers and the fatigue self-rating scale score.