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An Investigation of Collision Avoidance Warnings on Brake Response Times of Commercial Motor Vehicle Drivers

By  and John ShutkoWoodrow Barfield, Robert C. Williges and John Shutko


The goal of this experiment was to determine what if any effect two different types of warnings have the brake reaction time of distracted commercial motor vehicle operators. The warning conditions were: No Warning, Auditory Tire Skid Warning, and One Second Brake Pulse Warning. Each participant was distracted via a distracter task during the experiment. As the participants were distracted, an obstacle was launched out into their forward path. Each participant received his/her appropriate warning, according to what condition they were placed, when the obstacle entered their headway. It was determined that the Auditory Tire Skid Warning aided in decreasing the movement times, while the One Second Brake Pulse Warning aided in decreasing the number of collisions with the barrels and speed at contact with the barrels. DEDICATION This thesis is dedicated to the memory of Kristen Diane Nemec, December 17, 1971

Year: 1999
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