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Driver Response Time to Cyclist Path Intrusions
Technical Paper
2018-01-0531
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Motor vehicle crashes with cyclists are on the rise, with a six percent increase in fatal crashes from 2006 to 2015 in the USA. Although some research exists on the response time of drivers to some types of path intrusions, data on the perception-response of through drivers to cyclists who fail to stop at a stop sign, and ride into the path of the vehicle has not been researched. The purpose of this study was to quantify the Driver Response Time (DRT) to a cyclist that intrudes perpendicularly in front of a through vehicle at an intersection where the driver has the right-of-way. The DRT was measured from when the cyclist is positioned at the stop sign until the driver reacts, whether by touching the brake pedal, swerving (steering wheel angle change of at least 2 degrees), accelerating, or a combination of those responses.
26 (NFemale = 13; NMale = 13) university aged licensed volunteer drivers participated in the study conducted at the University of Guelph Driving Research in Virtual Environments (DRiVE) lab using an Oktal complete vehicle driving simulator. After a brief practice drive to acclimatize to the virtual environment, participants completed the approximately 10 minute experiment drive during which the cyclist hazard was presented. About one quarter of drivers crashed into the cyclist, with a mean time-to-impact of 3.26 seconds. There were no gender differences in terms of DRT or collision rates.
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Toxopeus, R., Attalla, S., Kodsi, S., and Oliver, M., "Driver Response Time to Cyclist Path Intrusions," SAE Technical Paper 2018-01-0531, 2018, https://doi.org/10.4271/2018-01-0531.Data Sets - Support Documents
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References
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