Measured increases in steering entropy may predict when performance will degrade: A driving simulator study |
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| Affiliation: | 1. School of Engineering, RMIT University, Australia;2. Metro Trains Melbourne, Australia;1. Département Neurosciences et Sciences Cognitives, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France;2. Centrale Nantes, CNRS, LS2N UMR CNRS 6004, Nantes, France;3. COSYS-PICS-L, Univ Gustave Eiffel, IFSTTAR, France;1. Institute of Psychology, Section Experimental Psychology, Johannes Gutenberg-Universität Mainz, Wallstrasse 3, 55122 Mainz, Germany;2. German Insurers Accident Research (UDV), Wilhelmstr, 43 /43 G, 10117 Berlin, Germany;1. Department of Education & Health Research Centre, University of Almeria, Spain;2. PROFITH “PROmoting FITness and Health through Physical Activity” Research Group, Department of Physical and Sports Education, Faculty of Sport Sciences, University of Granada, Granada, Spain;3. La Inmaculada Teacher Training Center, University of Granada, Granada, Spain;4. Department of Physical and Sports Education, PROFITH “PROmoting FITness and Health through Physical Activity” Research Group, Sport and Health University Research Institute (iMUDS), Faculty of Education and Sport Sciences, University of Granada, Melilla, Spain;5. Department of Education, Faculty of Education Sciences, University of Almería, Spain;6. SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería, Spain;7. Department of Didactics of Musical, Plastic and Body Expression, Faculty of Teaching Training, University of Extremadura, Cáceres, Spain;8. Faculty of Education, University of Zaragoza, Zaragoza, Spain;1. Civil Aviation University of China, Tianjin 300300, PR China;2. Beijing University of Technology, Beijing 100124, PR China;1. Department of Creative Product Design, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan;2. Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan; National Taiwan University Hospital (Yunlin Branch) |
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| Abstract: | We investigated the effect of time-on-task on driver’s mental workload and driving performance during a simulated driving task. The extent of mental workload was estimated from steering entropy, while driver performance was measured from the Standard Deviation of Lateral Position (SDLP) and the Standard Deviation (SD) Sterring Angle. Seventeen participants underwent a simulated highway driving task for 60 min. The results show that mental workload increased significantly after 15 min, whereas driving performance did not degrade until 30 min. These results suggest that when drivers first affected by time-on-task, they can cope with the situation by increasing mental effort investment and can manage to perform normally for a while (15 min). Since changes in steering entropy precede changes in driving performance, this measure of mental workload may have utility as a predictor of increased accident risk. |
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| Keywords: | Steering Entropy Mental workload Performance Time-on-task Simulated driving |
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