Subjective responses of mental workload during real time driving: A pilot field study

International Technical Postgraduate Conference

Rahman, N.I.A.^1 ; Dawal, S.Z.M.^1 ; Yusoff, N.^1

Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia^1

关键词: Driving session;    Driving settings;    Driving situations;    Field studies;    Load index;    Mental workload;    Physical demand;    Traffic densities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/210/1/012076/pdf
DOI  :  10.1088/1757-899X/210/1/012076

来源: IOP

【 摘 要 】

This study evaluated drivers' mental workload in real time driving to identify the driving situation's complexity influences in an attempt to further design on a complete experimental study. Three driving settings were prepared: Session A (simple situation); Session B (moderately complex situation); Session C (very complex situation). To determine the mental workload, the NASA-Task Load Index (TLX) was administered to four drivers after each experimental driving session. The results showed that the Own Performance (OP) was the highest for session A (highway), while Physical Demand (PD) recorded the highest mean workload score across the session B (rural road) and C (city road). Based on the overall results of the study, it can be concluded that the highway is less demanding compared to rural and city road. It can be highlighted in this study that in the rural and city road driving situation, the timing must be set correctly to assure the relevant traffic density. Thus, the sensitivity of the timing must be considered in the future experiment. A larger number of experience drivers must be used in evaluating the driving situations to provide results that can be used to draw more realistic experiments and conclusions.