Evasive action characteristics of motorcycle riders towards occluded-surprise and expected pedestrians: A pedestrian mock-up study |
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| Institution: | 1. Department of Civil Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502285, Telangana, India;2. Department of Civil Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502285, Telangana, India;3. Department of Civil and Construction Engineering, Swinburne University of Technology, Melbourne, Victoria 3122, Australia;1. School of Public Health and Preventive Medicine, Monash University, Victoria, Australia;2. Melbourne School of Design, The University of Melbourne, Victoria, Australia;3. Department of Physiology, Monash University, Victoria, Australia;1. Department of Sport and Health Sciences, Technical University of Munich, Georg-Brauchle-Ring 60, 80992 Munich, Germany;2. Department of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, Gebbertstraße 123b, 91058 Erlangen, Germany;3. Centre for Motivation and Health Behavior Change, Department for Health, University of Bath, BA2 7AY Bath, UK;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. 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. 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 |
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| Abstract: | Evasive action performance of motorcycle riders plays a vital role in the prevention of road crashes. In possible conflicting scenarios, motorcycle riders need to respond quickly and perform evasive actions successfully to prevent collisions with other vulnerable road users such as crossing pedestrians. To study the motorcycle rider behavior in conflicts with occluded and visible pedestrians, we designed four mock-up pedestrian scenarios, which includes, two surprise scenarios, one stationary scenario, and one expected scenario. Riders’ responses to the conflicts were measured using instrumented vehicle’s trajectory. Most riders preferred deceleration over swerving at the beginning of the interaction, followed by swerving at manageable speeds. Further, the analysis of riders’ deceleration rates revealed that a linear relationship existed between the deceleration rates and time to collisions (TTC). The study also analyzed the riders’ responses using repeated-measures analysis of variance (RM-ANOVA) to check for the effect of scenario type on deceleration rates. Results indicated that scenario type significantly affected the mean deceleration rates. Further, RM-ANOVA analysis carried out on the jerk behavior of motorcycle riders indicated that there was a significant effect of scenario type on the jerk behavior. Motorcycle riders’ jerks varied linearly with TTC and motorcyclists employ relatively higher decelerations and jerks when faced with pedestrians emerging suddenly from occluded locations such as from the blind spots formed due to parked vehicles. This study helps in understanding motorcycle rider behavior in critical situations and shows the need for assistive evasive systems for motorcycle riders to mitigate collisions with other vulnerable road users. |
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| Keywords: | Motorized two-wheelers Collision avoidance behavior Crash risk Powered two-wheelers Surrogate safety measure |
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