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Seeing pedestrians at night : visual clutter does not mask biological motion

Tyrrell, Richard A., Wood, Joanne M., Chaparro, Alex, Carberry, Trent P., Chu, Byoung-Sun, & Marszalek, Ralph P. (2009) Seeing pedestrians at night : visual clutter does not mask biological motion. Accidents Analysis and Prevention, 41(3), pp. 506-512.

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Abstract

Although placing reflective markers on pedestrians’ major joints can make pedestrians more conspicuous to drivers at night, it has been suggested that this “biological motion” effect may be reduced when visual clutter is present. We tested whether extraneous points of light affected the ability of 12 younger and 12 older drivers to see pedestrians as they drove on a closed road at night. Pedestrians wore black clothing alone or with retroreflective markings in four different configurations. One pedestrian walked in place and was surrounded by clutter on half of the trials. Another was always surrounded by visual clutter but either walked in place or stood still. Clothing configuration, pedestrian motion, and driver age influenced conspicuity but clutter did not. The results confirm that even in the presence of visual clutter pedestrians wearing biological motion configurations are recognized more often and at greater distances than when they wear a reflective vest.

Impact and interest:

20 citations in Scopus
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18 citations in Web of Science®

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ID Code: 29994
Item Type: Journal Article
Additional URLs:
Keywords: Pedestrian, Visibility, Conspicuity, Night Driving
DOI: 10.1016/j.aap.2009.02.001
ISSN: 0001-4575
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Optometry & Vision Science
Copyright Owner: Copyright 2009 Elsevier Ltd
Deposited On: 27 Jan 2010 09:18
Last Modified: 01 Mar 2012 00:09

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