HFST Before and After Safety Analysis

Missouri Department of Transportation (MoDOT) has been using high friction surface treatment (HFST) to improve or restore surface friction since 2013 in different locations such as wet crash locations, sharp curves and variable elevations. The objective of this study is to review and evaluate the effectiveness of existing and future High Friction Surface Treatment applications used in Missouri. The contractor will evaluate HFST projects in terms of performance, durability and impact on safety.