Effects of visual factors during automated driving of mobility scooters on user comfort: An exploratory simulator study |
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| Affiliation: | 1. Institute of Industrial Science, The University of Tokyo, Tokyo, Japan;2. Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan;1. Department of Psychology, School of Philosophy, National and Kapodistrian University of Athens, Athens, Greece;2. 1st University Department of Neurology, Eginiteion Hospital, National and Kapodistrian University of Athens, Athens, Greece;3. Delft University of Technology, Faculty of Technology, Policy and Management, Delft, The Netherlands;4. School of Civil Engineering, Department of Transportation Planning and Engineering, National Technical University of Athens, Athens, Greece;1. National Advanced Driving Simulator, University of Iowa, United States;2. College of Engineering, University of Iowa, United States;3. AAA Foundation for Traffic Safety, United States;1. Traffic Accident Analysis Division, National Forensic Service, 10, Ipchun-ro, Wonju-si, Gangwon-do 26460, Republic of Korea;2. Department of Automotive Engineering, Kookmin University, 77, Jeongneung-ro, Seongbuk-gu, Seoul 02703, Republic of Korea;1. Aix-Marseille University, CNRS, ISM Marseille, France;2. Groupe PSA, Centre technique de Vélizy, Vélizy-Villacoublay Cedex, France |
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| Abstract: | An automated mobility scooter is expected to provide convenient and safe transportation for users in their living area. However, there is limited research on user comfort compared to that on user safety for the automated driving of mobility scooters. Because the user does not perform driving tasks in automated driving, the visual information from the peripheral environment and visual behavior is expected to closely affect the psychological comfort of the user. This study clarifies the effects of factors related to the automated driving of mobility scooters and the peripheral environment on the visual behavior and psychological comfort of the user. Effects of driving velocity and pedestrian density on the visual behavior and psychophysiological responses of users were investigated via a driving simulator. The results showed that automated driving in an environment with a high pedestrian density can result in a decrease in fixation duration, deactivation of visual processing, sympathetic activation, and feeling of negative emotion. This implies that the assessment of visual behaviors of users is important for the design of automated mobility scooters to improve user comfort. |
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| Keywords: | Automated driving Mobility scooter User comfort Visual behaviour Physiological response |
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