alexa Control of Vehicle Braking by Younger and Older Drivers: The Effect of Texture and Size Information

Journal of Ergonomics
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Research Article

Control of Vehicle Braking by Younger and Older Drivers: The Effect of Texture and Size Information

Zheng Bian and George J. Andersen*

Department of Psychology, University of California, Riverside, Riverside, CA 92521, USA

*Corresponding Author:
George J. Andersen
Department of Psychology, University of California
Riverside Riverside, CA 92521, USA
Tel: 951 827- 4383
E-mail: [email protected]

Received Date: May 01, 2014; Accepted Date: May 27, 2014; Published Date: June 03, 2014

Citation: Bian Z, Andersen GJ (2014) Control of Vehicle Braking by Younger and Older Drivers: The Effect of Texture and Size Information. J Ergonomics S3:006. doi: 10.4172/2165-7556.S3-006

Copyright: © 2014 Bian Z, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



In the current study we examined differences in the use of visual information for the control of braking for older and younger drivers. On each trial, drivers controlled braking in a driving simulator during approach to three stop signs. Their task was to apply smooth and continuous braking and stop in front of the stop signs. The initial time-to contact, initial speed, texture on the ground and size of the stop signs were manipulated. The mean stop distance relative to the stop signs, standard deviation of stop distance, crash rate, mean time-to-contact at onset of braking, and distribution of tau-dot were analyzed. Overall we found that older drivers had larger mean stop distances and lower crash rates as compared to younger drivers. In addition, regulation of tau-dot varied as a function of size for younger but not for older drivers. These results, taken together, suggest that older drivers may use size information differently than younger drivers in braking regulation.


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