FIELD AND LABORATORY STUDIES ON SKID RESISTANCE OF PAVEMENT SURFACES

ONE OF THE MOST IMPORTANT PROPERTIES OF A PAVEMENT SURFACE IS ITS SKID RESISTANCE CHARACTERISTICS. A WET WEATHER ACCIDENT ANALYSIS INVOLVING CALIFORNIA HIGHWAYS INDICATES THAT MOST OF THE SINGLE CAR ACCIDENTS OCCUR ON CURVES. THE AVERAGE FRICTION VALUE AS DETERMINED BY THE CALIFORNIA SKID TESTER FOR THIS ANALYSIS WAS 0.22F. HOWEVER, TWENTY-EIGHT PERCENT OF THE ACCIDENTS THAT OCCURRED ON CURVES WERE IN THE 0.25F-0.28F RANGE. CROSS CORRELATION WITH THE BRITISH PORTABLE TESTER PLACES ALL RESULTS FOR MINIMUM REMEDIAL ACTION VALUES FROM ENGLAND, VIRGINIA, FLORIDA AND CALIFORNIA IN THE RANGE OF 0.25F-0.30F, AS MEASURED UNDER CALIFORNIA TEST CONDITIONS. A RATHER COMPREHENSIVE STUDY HAS BEEN COMPLETED ON THE IMPROVING OF THE SKID RESISTANCE OF PCC PAVEMENTS BY SERRATION. THE TYPE OF GROOVING PATTERN USED INFLUENCES THE REACTION OF PEOPLE DRIVING MOTORCYCLES OR LIGHT CARS OVER LONGITUDINAL (PARALLEL TO THE CENTERLINE) SERRATIONS. IT APPEARS THAT THE NATURE OF THE EXISTING CONCRETE SURFACE, AND THE TYPE OF SERRATION PATTERN INFLUENCE THE DEGREE OF IMPROVEMENT IN FRICTION VALUES. A MARKED REDUCTION IN WET WEATHER ACCIDENTS HAS OCCURRED IN CRITICAL CURVE AREAS THAT HAVE BEEN SERRATED. A DETAILED ANALYSIS OF 170 SINGLE VEHICLE ACCIDENTS THAT OCCURRED DURING RAINY WEATHER IN 1964 INDICATED THAT 152 OR NINE PERCENT OF THESE HAPPENED DURING PERIODS OF HEAVY RAINFALL WHERE DYNAMIC HYDROPLANING MIGHT HAVE BEEN A POSSIBILITY. FACTORS SUCH AS EXCESSIVE SPEED UNDER EXTREMELY POOR DRIVING CONDITIONS APPEAR TO BE IMPORTANT IN THE REPORTED SKIDDING ACCIDENTS DURING HEAVY RAINFALL. /AUTHOR/

  • Supplemental Notes:
    • Hpr-1 (5), B-3-1
  • Corporate Authors:

    California Division of Highways

    Bridge Department
    Sacramento, CA  USA  05914

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  USA  20590
  • Authors:
    • Zube, E
    • Skog, J B
    • Kemp, G R
  • Publication Date: 1968

Subject/Index Terms

Filing Info

  • Accession Number: 00206344
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: Mar 10 1994 12:00AM