Situation awareness is often argued to be an indicator of safety performance. Several factors may influence situation awareness that need to be identified and analyzed. This study investigated the influence of some variables on safety performance and examined the mediating effect of situation awareness. This study was conducted on 601 workers of different industries in Iran. All variables were measured via a multi-sectional questionnaire in a self-report manner. Path analysis modeling was used for data analysis. To measure the validity of the model, the RMSEA, CFI, and R² coefficients were employed. The results revealed that safety knowledge and sleepiness had significant direct and indirect effects on safety behavior and human error. Fatigue had only a mediating effect on safety behavior and error via situation awareness. Safety locus of control had only a mediating effect on human error through situation awareness. Whereas better safety knowledge and an internal safety locus of control could boost siaituation awareness, daily sleepiness and fatigue had significant, detrimental effects on situation awareness. These variables explained 38% of the variations in situation awareness. A proportion of the effect of personal variables on safety behavior and human error was mediated by situation awareness; thus, situation awareness is the direct cause of some safe behaviors and human errors.

通常认为情况意识是安全绩效的指标。有几种因素可能会影响情况意识，需要对其进行识别和分析。本研究调查了一些变量对安全绩效的影响，并研究了态势感知的中介作用。这项研究是针对伊朗不同行业的601名工人进行的。所有变量均通过多份问卷以自我报告的方式进行测量。路径分析建模用于数据分析。为了衡量模型，RMSEA，CFI和R ²的有效性使用系数。结果表明，安全知识和嗜睡对安全行为和人为错误具有直接和间接的显着影响。疲劳仅通过情况感知对安全行为和错误产生中介作用。控制的安全源仅通过情况感知对人为失误具有中介作用。更好的安全知识和内部安全控制源可以增强患者对唾液腺的意识，而每天的困倦和疲劳对情况意识有明显的不利影响。这些变量解释了态势感知中38％的变化。个人变量对安全行为和人为错误的影响的一部分是由态势感知介导的；因此，态势感知是某些安全行为和人为错误的直接原因。