A REVIEW OF THE SKIDDING RESISTANCE OF ROADS WITH PARTICULAR EMPHASIS ON NEW SURFACINGS

The paper addresses the problem of finding the most meaningful method of assessing the skid resistance characteristics of various alternative wearing course materials. In September 1994, Lothian Transportation conducted trials of wearing course options at two site in the Edinburgh area of Scotland, with the aim of assessing alternatives to the standard chipped hot rolled asphalt wearing course. After several different types of material were tested, it was concluded that the low-cost convenient sand patch texture depth and skid pendulum measurements did not provide enough information to justify firm views on frictional characteristics of surfacings. The reasons for this conclusion are derived from the basic concepts of skidding resistance. The paper then critically examines the methods of measuring road surface braking characteristics, assesses the advantages and disadvantages of the common methods, and gives some results for a wide range of possible wearing course materials. It also presents a case for reconsidering whether texture depth is a suitable criterion for judging the acceptability of wearing course materials in terms of their skid resistances. For the covering abstract see IRRD 877211.

• Corporate Authors:

  THE INSTITUTE OF ASPHALT TECHNOLOGY

  OFFICE 5, TRIDENT HOUSE, CLARE ROAD
  STANWELL, MIDDLESEX  United Kingdom  TW19 7QU
• Authors:
  • Hunter, R N
• Publication Date: 1995

Language

• English

Media Info

• Features: References;
• Pagination: p. 55-60
• Serial:
  • THE ASPHALT YEARBOOK 1996
  • Publisher: THE INSTITUTE OF ASPHALT TECHNOLOGY

Subject/Index Terms

• TRT Terms: Bituminous mixtures; Braking; Friction; Hot coated materials; Measurement; Skid resistance; Surfacing; Test procedures; Texture; Wearing course (Pavements)
• Geographic Terms: United Kingdom
• ITRD Terms: 4967: Bituminous mixture; 1874: Braking; 5452: Friction; 4997: Hot coated material; 6136: Measurement; 3031: Skid resistance; 3053: Surface texture; 2972: Surfacing; 6288: Test method; 8119: United Kingdom; 2980: Wearing course
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00722425
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jun 28 1996 12:00AM