A STUDY OF VARIABLES ASSOCIATED WITH WHEEL SPIN-DOWN AND HYDROPLANING

AN EVALUATION OF THE WET WEATHER PROPERTIES OF A PORTLAND CEMENT CONCRETE PAVEMENT AND A GRAVEL SEAL COAT PAVEMENT IS PRESENTED. THE STUDY USES WHEEL SPIN-DOWN AS THE CRITERION AND CONSIDERS THE EFFECT OF WATER DEPTH, TIRE INFLATION PRESSURE, TIRE TREAD DEPTH AND WHEEL LOAD. A HYDROPLANING TROUGH 800 FT. LONG, 30 IN. WIDE AND 4 IN. DEEP WAS USED IN OBTAINING THE DATA. THE RESULTS INDICATE THAT THE GRAVEL SEAL COAT PAVEMENT REQUIRES A CONSIDERABLY HIGHER GROUND SPEED TO CAUSE SPIN-DOWN THAN THE CONCRETE PAVEMENT. FURTHER EVEN THOUGH A SINGLE CRITICAL SPEED DOES NOT EXIST FOR THE RANGE OF VARIABLES SELECTED, A REDUCTION OF SPEED TO 50 MPH IS RECOMMENDED FOR ANY SECTION OF HIGHWAY WHERE WATER CAN ACCUMULATE TO DEPTHS OF 0.1 INCH OR MORE DURING WET WEATHER PERIODS. /AUTHOR/

  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  USA  76011

    Texas State Department of Highways & Public Transp

    11th and Brazos Streets
    Austin, TX  USA  78701

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • MARTINEZ, J E
    • Stocker, A J
    • Lewis, J M
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00219763
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: Study No 147-1
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Mar 20 1972 12:00AM