Establishing Roadway Cross-Slopes During Resurfacing Projects

Many of Kentucky’s rural roads were built over existing wagon trails and paths. Unlike modern roadway design, which considers speed, geometry, and frictional forces to determine appropriate superelevations in horizontal curves, as well as rates of change, to provide a safer roadway and more comfortable driving experience, older roads were built with a typical 2% crown slope. The 2% crown slope continues through horizontal curves, which directs or pushes vehicles away from the direction of travel. Not only is this less than optimal for motorists, it often produces an uncomfortable feeling for drivers.


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    • Status: Active
    • Funding: $200000
    • Contract Numbers:

      KYSPR 20-585

    • Sponsor Organizations:

      Kentucky Transportation Cabinet

      200 Mero Street
      Frankfort, KY  United States  40622
    • Performing Organizations:

      University of Kentucky, Lexington

      Kentucky Transportation Center College of Engineering, 176 Raymond Building
      Lexington, KY  United States  40506-0281
    • Principal Investigators:

      Ashurst, Kean

    • Start Date: 20190701
    • Expected Completion Date: 20210630
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01711182
    • Record Type: Research project
    • Source Agency: University of Kentucky, Lexington
    • Contract Numbers: KYSPR 20-585
    • Files: RIP, STATEDOT
    • Created Date: Jul 17 2019 1:37PM