SKID RESISTANCE GUIDELINES FOR SURFACE IMPROVEMENTS ON TEXAS HIGHWAYS

THIS REPORT PERTAINS TO THE SELECTION OF A MINIMUM SKID RESISTANCE FOR USE AS ANOTHER GUIDELINE FOR SURFACE IMPROVEMENTS BY THE TEXAS HIGHWAY DEPARTMENT. THIS PROBLEM WAS APPROACHED FROM AN ACCIDENT STANDPOINT AS WELL AS FROM A DESIGN STANDPOINT, SINCE EXPERIENCE ON SEVERAL SECTIONS OF ROADWAY INDICATED A SHARP REDUCTION OF ACCIDENTS AFTER SURFACE IMPROVEMENTS. SKID RESISTANCE AND ACCIDENT DATA WERE COLLECTED ON 517 RURAL SECTIONS THAT REPRESENTED A RANDOM SAMPLE OF TEXAS HIGHWAYS. THE SKID RESISTANCE VALUES WERE OBTAINED THROUGH THE USE OF A TOWED TRAILER EMPLOYING THE LOCKED-WHEEL PRINCIPLE ON ARTIFICALLY WETTED PAVEMENTS. AN ANALYSIS OF THIS DATA SHOWED THAT THE POSSIBILITY OF A ROADWAY SECTION HAVING A HIGH ACCIDENT RATE INCREASED AS THE COEFFICIENT OF FRICTION DECREASED. ON THE BASIS OF THIS STUDY, COMPOSITE SKID RESISTANCES OF 0.4 AND 0.3 FOR TESTING VELOCITIES OF 20 AND 50 MPH, RESPECTIVELY, WERE SELECTED AS GUIDELINES FOR CONSIDERING SURFACE IMPROVEMENTS. IN ADDITION , SKID RESISTANCE VALUES OF 0.31 AND 0.24 AT 20 AND 50 MPH, RESPECTIVELY, WERE RECOMMENDED AS MINIMUM VALUES. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1966/131/131-012.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Surface Properties--Vehicle Interaction and presented at the 45th 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:
  • McCullough, B F
  • Hankins, K D
• Publication Date: 1966

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 204-217
• Monograph Title: Design, Performance and Surface Properties of Pavements
• Serial:
  • Highway Research Record
  • Issue Number: 131
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Coefficient of friction; Crash rates; Pavements; Skid resistance; Skid resistance tests; Surfacing; Test sections; Trailers
• Uncontrolled Terms: Criteria
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00206247
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Nov 21 1994 12:00AM