Presentation
Natural Mapping of Vibration Alerts to Wheel Responses: Effects of Directional and Urgency-Based Vehicle Warnings
DescriptionVibration alerts have not been investigated thoroughly to create intuitive warnings for takeover requests (TORs), providing directional information to drivers during partial driving automation. Using vibration alerts for TORs, the placement of the physical alerts in the system, and the orientation information provided to the driver could influence how a fast, intuitive response is chosen. The present study thus investigated whether vibration alerts, directional and non-directional, influence response time when choosing a direction to move around a hazard during a low and high urgency driving scenario. Unlike most prior studies, which required forced correct responses, this study allowed participants to freely choose between two equally safe responses. This paradigm enabled the testing of participants' natural response tendencies when prompted by vibration alerts. Participants chose to steer more often using a compatible (i.e., left steering and left vibration) rather than an incompatible (i.e., left steering and right vibration) mapping based on the vibration alert location. Therefore, this study recommends that vibration alerts be designed to follow the more natural, compatible mapping to allow for accurate responses from drivers in urgent scenarios.
Event Type
Lecture
TimeThursday, October 16th3:20pm - 3:40pm CDT
LocationGrand Hall L
Perception and Performance
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