The influence of binder rise in reducing tyre-road friction

This paper gives some preliminary results of a Land Transport New Zealand funded research project that is currently being undertaken in New Zealand to: 1. detect the presence of binder rise (flushing) from two-dimensional road surface profiles, and 2. quantify the influence of binder rise in reducing tyre-road friction on surface dressing surfaces. Research indicates that there is a direct link between the risk of a crash in wet conditions and the level of skid resistance offered by a surface. By more accurately identifying flushed surfaces and quantifying the effects of binder rise in reducing skid resistance, skid resistance management practices can be improved thereby reducing the number of crashes in wet conditions. This paper discusses two objectives of the research: 1. establish whether or not the dynamic friction tester can simulate high-speed locked-wheel braking performance, and 2. quantify the friction reduction that occurs on flushed surfaces. The key finding is that surface dressing flushing reduces tyre-road friction by approximately 0.1 units at 60km/h and reduces linearly with slip-speed at a rate of 0.01 per 20km/h.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Henderson, R
  • Wilson, D
  • Cenek, P
  • Jamieson, N
• Conference:
  • Transportation Research Board 88th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2009-1-11 to 2009-1-15
• Date: 2009-1

Language

• English

Media Info

• Pagination: 16p
• Monograph Title: Transportation Research Board 88th Annual Meeting compendium of papers DVD, January 11-15, 2009, Washington, DC

Subject/Index Terms

• TRT Terms: Binders; Friction; Pavement distress; Pavement surface course; Rolling contact; Seal coats; Skid resistance; Wet weather
• Uncontrolled Terms: Pavement technology
• Geographic Terms: New Zealand
• ATRI Terms: Binder; Friction; Skidding resistance; Stripping of binder; Surface dressing; Vehicle pavement interaction; Wet road
• Subject Areas: Design; Highways; Pavements;

Filing Info

• Accession Number: 01383976
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 22 2012 4:05PM