AN INVENTORY OF EXISTING PRACTICES AND SOLUTIONS TO SLIPPERY PAVEMENTS-1969

A SUMMARY IS PRESENTED OF THE RESULTS OF A QUESTIONNAIRE CIRCULATED TO HIGHWAY DEPARTMENTS OF FORTY-EIGHT STATES, THE DISTRICT OF COLUMBIA AND THE CANADIAN PROVINCES. THE PROBLEM OF SLIPPERY PAVEMENTS WAS CONSIDERED TO BE OF MAJOR CONCERN BY 46 PER CENT OF THE STATES; OF MODERATE CONCERN BY 50 PERCENT. ONLY TWO STATES FELT IT WAS OF MINOR IMPORTANCE. THE SURVEY SHOWED THAT 29 STATES USED A SKID TRAILER TO MEASURE SKID RESISTANCE. SEVENTEEN OF THE STATES ARE PRESENTLY ENGAGED IN AN INVENTORY-TYPE PROGRAM. SIXTY- THREE PERCENT OF THE STATES ARE NOW CONDUCTING A RESEARCH PROGRAM ON SKID RESISTANCE. VERY FEW STATES HAVE SUFFICIENT BACKGROUND EXPERIENCE AND RESEARCH DATA UPON WHICH TO FORM SPECIFICATIONS INCLUDING SUCH REQUIREMENTS AS A MINIMUM COEFFICIENT OF FRICTION, MINIMUM ACCEPTANCE TEST FOR AGGREGATES, AND DESIGN CRITERIA FOR ADEQUATE SKID RESISTANCE. THE SURVEY EMPHASIZES THE NEED FOR COORDINATED RESEARCH IN THESE AREAS TOGETHER WITH THE DEVELOPMENT OF FIELD PRACTICES FOR UPGRADING PAVEMENT TRACTION.

  • Supplemental Notes:
    • 1 APP
  • Publication Date: 1970-2

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Filing Info

  • Accession Number: 00207086
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 25 1970 12:00AM