Hazard perception performance and visual scanning behaviours: The effect of sleepiness |
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| Affiliation: | 1. University of Southern Queensland (USQ), School of Psychology and Wellbeing, Australia;2. Queensland University of Technology (QUT), School of Psychology and Counselling, Centre for Accident Research and Road Safety – Queensland, Australia;3. Queensland University of Technology (QUT), School of Exercise and Nutrition Sciences, Australia;4. Queensland University of Technology (QUT), School of Psychology and Counselling, Australia;1. Academy of Professional Studies Sumadija, Department in Kragujevac, Kosovska 8, 34000 Kragujevac, Serbia;2. University of Belgrade, Faculty of Transport and Traffic Engineering, Vojvode Stepe 305, 11000 Belgrade, Serbia;3. P.E. GSP Belgrade, Knjeginje Ljubice 29, 11000 Belgrade, Serbia;4. University of Montenegro, Faculty of Mechanical Engineering, Blv. Dzordza Vasingtona bb, 81000 Podgorica, Montenegro;1. Centre for Vision and Eye Research, School of Optometry and Vision Science, Queensland University of Technology, Brisbane, Australia;2. Department of Psychology, Clemson University, SC, USA;1. TU Delft University of Technology, the Netherlands;2. SWOV Institute for Road Safety Research, The Hague, the Netherlands;3. TNO Traffic & Transport, The Hague, the Netherlands;4. Eindhoven University of Technology, the Netherlands;1. Civil Aviation University of China, Tianjin 300300, PR China;2. Beijing University of Technology, Beijing 100124, PR China;1. UHasselt - Hasselt University, Transportation Research Institute (IMOB), Agoralaan, 3590 Diepenbeek, Belgium;2. Ziekenhuis Oost-Limburg, Future Health Department, Schiepse Bos 6, 3600 Genk, Belgium;3. Department of Cardiology, Jessa Hospital, Stadsomvaart 11, 3500 Hasselt, Belgium;4. UHasselt, Faculty of Medicine and Life Sciences, Agoralaan 3590, Diepenbeek, Belgium |
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| Abstract: | Driver sleepiness accounts for a substantial proportion of crashes in Australia and Worldwide. Young adults are overrepresented in sleep-related crashes and are more susceptible to sleepiness, resulting in impaired attention and driving performance. Visual scanning behaviour can affect the role between attention and information acquisition from the driver's environment. Thus, if attention is impaired, visual scanning behaviours are likely to show decrements as well. Overall, 32 young adults aged between 20 and 25 years completed a 60-minute hazard perception task to examine the effect of sleepiness and time-on-task on hazard perception performance, visual scanning behaviours, subjective sleepiness scores, and psychomotor vigilance test performance. The main outcomes include decrements in hazard perception performance and a restriction in horizontal and vertical eye scanning ranges across the 60-minute session, but with a more pronounced effect when sleep-restricted. These outcomes were consistent with increases in subjective sleepiness and behavioural metrics of sleepiness assessed via the PVT. Reductions in scanning range could limit opportunities to attend to hazards and other critical safety events. The current study outcomes provide an important contribution regarding the risks associated with sleepy driving performance. |
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| Keywords: | Eye tracking Hazard perception, sleep restriction Young drivers |
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