【作者】 秦伟；

【导师】 朱守林；

【作者基本信息】 内蒙古农业大学 ， 森林工程， 2011， 硕士

【摘要】 随着内蒙古自治区公路建设的迅速发展,公路交通安全问题也日益显著,研究表明在公路交通安全中引发交通事故的主要原因是驾驶疲劳。虽然大多数学者已经对普通公路上的驾驶疲劳采取了很多的预防措施,但是由驾驶疲劳导致的交通事故然时有发生,因此对驾驶疲劳的研究显得尤为重要。本文在草原公路这一景观环境下,从交通工程学和人机环境工程学的角度出发,研究驾驶员在草原公路行车时,产生的驾驶疲劳,找出适合草原公路行车驾驶疲劳的测量方法及指标,分析草原公路行车状态下驾驶疲劳的生理指标的显著性,以及在草原公路行车时驾驶员生理指标对驾驶疲劳响应的敏感性。·本文通过进行草原公路实驾实验,运用SPSS软件和敏感性分析中单因素分析方法对驾驶员的各项生理指标和眼动指标进行分析得出以下结论：(1)通过对心率变异时频域指标、眼动指标随驾驶时间变化关系图的分析,得出在草原公路行车时候,连续驾驶时间在120分钟左右时候出现驾驶疲劳现象。(2)运用统计学原理把驾驶员的生理指标与驾驶疲劳出现的情况下的显著性分析,排除了不适合在草原公路驾驶疲劳中研究的指标VLF。(3)运用敏感性分析的原理,研究驾驶员的生理指标对草原公路行车驾驶疲劳的敏感性,得出各项指标的敏感系数,并对驾驶员生理指标中的心率变异时频域指标和眼动指标进行排序,得出以下结论：眼动指标敏感性由高到低的顺序依次是注视次数,注视时间,瞳孔大小,眨眼次数,扫视次数。心率和心率变异时域指标敏感性由高到低r-MSSD, SDANN, SDNN, PNN50, HR, MeanRR。频域指标敏感性由高到低依次是：LF, LF/HF, HF。更多还原

【Abstract】 With the rapid development of highway construction in Inner Mongolia, traffic safety becomes increasingly severe. Driving fatigue is the main cause resulting in traffic crashes. Many scholars have studied preventive measure of driving fatigue for general highway, but traffic crashes still happen occasionally. In this paper, in terms of traffic engineering and Man-Machine-Environmental Engineering, in the landscape environment of Prairie highway, the driving fatigue is studied to find the adaptive measurement and indicators that showing it, and analyze the significance of physiological indices showing driving fatigue travelling along Prairie highway. And the sensitivity of physiological indices and eye movement indices of driver to show driving fatigue are studied.In this paper, field experiment is carried out, and SPSS software and Single Factor Analysis method in sensitivity analysis are used to analyze physiological indexes and eye movement indexes of driver. Some conclusions are as follows:(1)In Prairie highway, driving fatigue generates when continuous driving time reaches 120min, according to HRV’s time domain indexes and eye movement indexes.(2) By applying Principle of Statistics, we make the significance analysis of psychological and physiological indices and eye movement indices showing driving fatigue generation, and VLF is eliminated, which do not fit to be studied in driving fatigue of Prairie highway.(3) By using the principle of sensitivity analysis, and studying the sensitivity of driving fatigue to physiological indexes and eye movement indexes in the travelling on prairie highway, we conclude the sensitivity coefficients. We take an sequencing to HRV’ s time domain indexes of driver’s physiological indexes and eye movement indexes, and some conclusions are as follows:The sensitivity descending order of eye movement indices is fixation count, fixation time, pupillary size, blink count, and saccade count; The sensitivity descending order of HR and HRV’s time domain indices is r-MSSD, SDANN, SDNN, PNN50, HR, MeanRR. The sensitivity descending order of HRV’s frequency domain indices is LF, LF/HF, HF.更多还原