fa P28: Estimating Bus Driver Fatigue through Performance Measures in a Virtual Driving Environment نورولوژی Neurology پژوهشي Research --- Open Access, CC-BY-NC <p align="center">لطفاً به چکیده انگلیسی مراجعه شود. </p> Driver fatigue is one of the main causes of road accidents. This study aimed to estimate bus driver fatigue through performance measures in a virtual driving environment. The study was conducted on thirty professional male bus drivers participated in a two-hour drive session. The driver subjective fatigue was assessed by Fatigue Visual Analogue Scale (F-VAS) on 10 min intervals. At the same time, the performance measures of lane drifting as mean and standard deviation of bus lateral position (SDLP) were calculated during the simulated driving task. The findings presented a rising trend in subjective fatigue level with increasing the time-on-task of driving. Time-on-task of driving was the most effective factor on fatigue self-evaluation. The drivers showed a significant correlation between F-VAS score and SDLP. The findings revealed a strong correspondence between SDLP and driver subjective fatigue based on group mean data, but individual differences may affect the driving performance which should not be ignored in future investigation. Bus Driver, Fatigue-Visual Analogue Scale, Road Accident 78 78 http://shefayekhatam.ir/browse.php?a_code=A-10-24-424&slc_lang=fa&sid=1 Adel Mazloumi Adel Mazloumi amazlomi@tums.ac.ir 10031947532846005776 10031947532846005776 Yes Department of Occupational Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Department of Occupational Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Faramarz Gharagozlou Faramarz Gharagozlou 10031947532846005777 10031947532846005777 No Department of Occupational Health, School of Public Health, Kermanshah University of Medical Sciences, Iran. Department of Occupational Health, School of Public Health, Kermanshah University of Medical Sciences, Iran. Jabraeil Nasl Saraji Jabraeil Nasl Saraji 10031947532846005778 10031947532846005778 No Department of Occupational Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Department of Occupational Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Ali Nahvi Ali Nahvi 10031947532846005779 10031947532846005779 No Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran. Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran. Mohammadreza Ashouri Mohammadreza Ashouri 10031947532846005780 10031947532846005780 No Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran. Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran. Hamed Mozaffari Hamed Mozaffari 10031947532846005781 10031947532846005781 No Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran. Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran.