United States Department of Transportation
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High Friction Surface Treatments
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2016-01-01
[PDF-785.46 KB]
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Abstract:Horizontal curves made up only 5 percent of our Nation’s highway miles in 2008. Yet, more than 25 percent of highway fatalities in the United States occur at or near horizontal curves each year. While some of the factors contributing to these crashes include excessive vehicle speed or distracted driving and driver error, at some locations, the deterioration of pavement surface friction may also be a contributing factor. Variable friction creates the need to consider pavement improvements for surface characteristics, particularly for friction, at certain locations in order to increase safety.
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