REHABILITATION OF SLIPPERY ROADS

A SURVEY IS REPORTED WHICH WAS CONDUCTED BY SENDING QUESTIONNAIRES TO THE 50 STATES AND THE DISTRICT OF COLUMBIA TO DETERMINE INTEREST IN MEASURING SKID RESISTANCE. THE SURVEY INDICATED THAT 34 STATES AND THE DISTRICT OF COLUMBIA ARE AT PRESENT MEASURING SKID RESISTANCE. STANDARD SKID RESISTANCE TEST METHODS AND ADAPTATIONS ARE DESCRIBED. MINIMUM SKID NUMBERS AND MEANS OF RESURFACING ARE DISCUSSED. IN ORDER TO REHABILITATE THE PRESENT SLIPPERY ROADS AND TO PROVIDE NON-SKID ROADS, IT IS BELIEVED THAT THE FOLLOWING ARE NEEDED: (1) A STANDARD METHOD OF MEASURING SKID RESISTANCE, (2) STANDARD MINIMUM SKID NUMBERS FOR VARIOUS TRAFFIC CONDITIONS AND GEOMETRIC DESIGNS, AND (3) ECONOMICAL MEANS OF PROVIDING SKID-RESISTANCE SURFACES. ALTHOUGH IT IS TRUE THAT ISOLATED SLIPPERY CONDITIONS CAN BE CORRECTED BY HEATER-PLANING, KEROSENE TREATMENTS, GROOVING, AND SUPERELEVATING, THE AUTHOR BELIEVES THAT THE MATERIALS MAKING UP THE MIX ARE THE MOST IMPORTANT INGREDIENTS AFFECTING SKID RESISTANCE. THE STATE OF VIRGINIA HAS SOME SLURRY SEAL TEST SECTIONS THAT ARE NOW BEING EVALUATED FOR SKID RESISTANCE. CALIFORNIA HAS REALIZED A PHENOMENAL REDUCTION IN ACCIDENTS BY GROOVING THE PAVEMENT. TEST SECTIONS HAVE BEEN PLACED IN WHICH LIGHTWEIGHT EXPANDED SHALES WERE BLENDED IN LIMESTONE MIXES, AND A PRECOATED POLISH-RESISTANT AGGREGATE WAS PLACED ON A HOT, PLANT, LIMESTONE MIX. THESE METHODS SHOW PROMISE, BUT IT WILL BE SEVERAL YEARS BEFORE FINAL JUDGMENT CAN BE MADE.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1969/300/300-005.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Salvaging Old Pavements by Resurfacing, Maintenance of Bituminous Pavements, and Maintenance of Portland Cement Concrete Pavements and presented at the 48th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Mahone, David C
• Publication Date: 1969

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 27-32
• Monograph Title: Design of overlays and pavement rehabilitation
• Serial:
  • Highway Research Record
  • Issue Number: 300
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Data collection; Driver rehabilitation; Pavement grooving; Pavements; Prevention; Questionnaires; Resurfacing; Safety; Skid resistance; Skid resistance tests; Skidding; Slipperiness; Slurry seals; Surface course (Pavements); Surveys; Test procedures; Test sections; Texture
• Uncontrolled Terms: Rehabilitation
• Subject Areas: Highways; Maintenance and Preservation; Pavements; Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 00218568
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Feb 16 1970 12:00AM