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                        Case Study: Kentucky Transportation Cabinet's High Friction Surface Treatment and Field Installation Program


            
            In This Section
        Pavement Friction
                Friction Management
                Continuous Pavement Friction Measurement (CPFM)
                Traditional Friction Treatments
                High Friction Surface Treatment
                Case Studies and Noteworthy Practices
                FAQs, Links, and Other Resources
                
                SECTION 7: Project Examples of HFST Application
SECTION 7: Project Examples of HFST Application

This section of the document provides some specific examples where an HFST was placed to reduce wet-weather roadway departures and crashes. A total of four projects are included in this section.

**Location 1**: Madison County, Kentucky; KY-21, MP 6.7-6.9

			**Installation**: November 2010

			Two horizontal curves were located within these mileposts. Prior to the HFST installation, nine wet weather crashes and eight dry weather crashes were recorded at this location over 3 years.

			After the installation, over a period of 2.9 years, one wet weather crashes and three dry-weather crashes were recorded.
			A horizontal curve on a rural, two-lane roadway. Photo: KYTC**Location 2**: Madison County, Kentucky; KY-21, MP 11.3-13.5

			**Installation**: April 2011

			The roadway within this segment was divided into five sections, each containing a horizontal curve. During the 3 years prior to the HFST installation, 37 wet-weather crashes and 6 dry-weather crashes were recorded.

			After the treatment, over a period of 2.5 years, 4 wet-weather crashes and 10 dry weather crashes were recorded.
			A two-lane rural roadway with darker pavement indicating that the travel lanes have been treated with HFST. Photo: KYTC**Location 3**: Fayette County, Kentucky; Ramp from I-75/I-64 to US-68/US-27

			**Installation**: November 2010

			An HFST was placed on the ramp from I-75/I-64 to US-68/ US-27. The 3-year before-treatment period included 17 wet weather and 8 dry crashes in the ramp area.

			The HFST was placed from the guardrail to the edge strip along the shoulder. During the 3-year post-treatment period only one dry weather crash has been reported.
			A ramp with darker pavement indicating that the road has been treated with HFST. Photo: KYTC**Location 4**: Fayette County, Kentucky; KY-922; MP 7.8 to 7.9

			**Installation**: November 2010

			During the 3 years prior to the HFST installation, eight wet weather crashes and five dry-weather crashes were recorded.

			After the treatment, over a period of 3 years, one wet-weather crash has been recorded.
			A two-lane rural roadway with darker pavement in the travel lanes indicating that they have been treated with HFST. Photo: KYTC
      
  Book traversal links for SECTION 7: Project Examples of HFST Application
      ‹ SECTION 6: Contracting and Constructing HFST
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                    References ›
                
                Book:Case Study: Kentucky Transportation Cabinet's High Friction Surface Treatment and Field Installation Program
              Acknowledgements
                Technical Report Documentation Form
                Executive Summary
                SECTION 1: Introduction
                SECTION 2: Brief History of High Friction Surface Treatments and Their Benefit
                SECTION 3: Kentucky's HFST Program
                SECTION 4: HFST Site Selection Process
                SECTION 5: Data Collection and Analysis in Support of the HFST Program
                SECTION 6: Contracting and Constructing HFST
                SECTION 7: Project Examples of HFST Application
                References U.S. DEPARTMENT OF TRANSPORTATION

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