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Findings on Risk Management Reported by Investigators at Clemson University (Configuring retroreflective markings to enhance the night-time...

August 1, 2014

Findings on Risk Management Reported by Investigators at Clemson University (Configuring retroreflective markings to enhance the night-time conspicuity of road workers)

By a News Reporter-Staff News Editor at Insurance Weekly News -- Fresh data on Risk Management are presented in a new report. According to news reporting from Clemson, South Carolina, by VerticalNews journalists, research stated, "This study investigated whether the night-time conspicuity of road workers can be enhanced by positioning retroreflective strips on the moveable joints in patterns that convey varying degrees of biological motion. Participants were 24 visually normal adults (12 young M = 26.8 years; 12 older M = 72.9 years)."

The news correspondents obtained a quote from the research from Clemson University, "Visual acuity, contrast sensitivity and glare sensitivity were recorded for each participant. Experimenters acting as road workers walked in place on a closed road circuit within simulated road work sites, facing either the oncoming driver or the roadway (presenting sideways to the driver) and wearing one of four clothing conditions: (i) standard road worker vest; (ii) standard vest plus thigh-mounted retroreflective strips; (iii) standard vest plus retroreflective strips on ankles and knees; (iv) standard vest plus retroreflective strips positioned on the extremities in a configuration that conveyed biological motion ('biomotion'). As they drove along the closed road participants were instructed to press a button to indicate when they first recognized that a road worker was present. The results demonstrated that regardless of the direction of walking, road workers wearing biomotion clothing were recognized at significantly (p < 0.05) longer distances (3x), relative to the standard vest alone. Response distances were significantly shorter for the older drivers. Contrast sensitivity was a better predictor of the ability to recognize road workers than was visual acuity or glare sensitivity."

According to the news reporters, the research concluded: "We conclude that adding retroreflective strips in the biomotion configuration can significantly improve road worker conspicuity regardless of the road worker's orientation and the age of the driver."

For more information on this research see: Configuring retroreflective markings to enhance the night-time conspicuity of road workers. Accident Analysis and Prevention, 2014;70():209-214. Accident Analysis and Prevention can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier -; Accident Analysis and Prevention -

Our news journalists report that additional information may be obtained by contacting J.M. Wood, Clemson University, Dept. of Psychol, Clemson, SC 29631, United States. Additional authors for this research include R. Marszalek, P. Lacherez and R.A. Tyrrell.

Keywords for this news article include: Clemson, South Carolina, United States, North and Central America, Risk Management

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Source: Insurance Weekly News

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