High Friction Surface treatments include a two-part application of an epoxy binder followed with placement of rough, hard, and durable aggregates on an existing roadway surface. These treatments reduce roadway departure accidents by increasing surface friction. Promoted by PennDOT and the Federal Highway Administration, Allegheny County has used this treatment for the past few years and found it is a cost-effective safety treatment for strategic locations on roadways where friction needs to be maximized (such as steep grades or sharp horizontal curves). It provides texture to existing concrete or asphalt surfaces without sacrificing uniformity or rideability. Other public works agencies may find this treatment has value for their own assets.

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Jason Molinero

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