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Improved Grade Crossing Safety with In-Pavement Warning Lights

  • Cohn, Theodore E.
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    The focus of this project is the modification of a commercially available in-pavement warning signal that was evolved from one originally designed to indicate the presence of pedestrians in a crosswalk. We have proposed use of a similar device to provide warning to vehicles approaching a railroad grade crossing, and we have tested a variety of illumination patterns in order to provide an optimal implementation of such a warning device. Our laboratory tests demonstrate an improvement in visual response, as evidenced by a lowered reaction time, to a pattern that incorporates alternating groups of spatially-separated flashed LEDs in order to stimulate perception of movement. We have also completed preparations, including installation, for a future field test to study vehicle behavior in the presence of embedded warning lights incorporating this modified firing pattern.

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    File URL: http://www.escholarship.org/uc/item/8s1331dw.pdf;origin=repeccitec
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    Paper provided by Institute of Transportation Studies, UC Berkeley in its series Institute of Transportation Studies, Research Reports, Working Papers, Proceedings with number qt8s1331dw.

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    Date of creation: 01 Mar 2005
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    Handle: RePEc:cdl:itsrrp:qt8s1331dw
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