United States Department of Transportation
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Treatments to reduce the frequency of freeway exit sign hits.
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2011-06-01
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[PDF-4.45 MB]
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Alternative Title:Project title: Evaluation of the performance of high-impact signs
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Edition:Technical report; Sept. 2008-Aug. 2010.
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Abstract:Exit gore signs present a significant maintenance challenge for TxDOT. There is concern regarding the safety
of personnel working in gore areas to replace these signs, and the resources necessary for continual
maintenance. The objective of this project was to identify and evaluate alternative methods that may reduce
the number of sign hits. Researchers visited several sites with safety problems related to frequent sign hits,
determined factors that contribute to sign crashes, and recommended potential treatments. They also evaluated
the impact of eliminating exit gore signs at locations where appropriate advance warning with overhead exit
signs are provided. Field studies were conducted at two freeway exits in Corpus Christi, Texas. It was found
that the lack of exit gore signs at the two freeway exits did not have any negative consequences in terms of
vehicle speeds, deceleration behavior, and erratic maneuvers.
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