Slippery when dry? Low dry friction and binder-rich road surfaces

This paper describes the history of the bituplaning phenomenon, documents its occurrence in the literature and briefly describes the development of one standard procedure to alert the road user to the inherent risk. Bituplaning has previously been documented twice in the United Kingdom, first in 1986 then in 2001. The first case of bituplaning related to a �traditional� hot-rolled-asphalt (HRA) surface, reinforcing the belief that any surface course aggregate coated with excess binder could exhibit the bituplaning effect. A number of experiments to measure the temperatures generated at the tyre/road interface of a locked wheel on a dry road surface are also described, along with comments concerning features of negative textured road surfaces, which may influence road user behaviour to increase accident rates on these new surfaces. Various strategies for signing new surfaces are in operation in the UK. A standard, based on detailed research, is already in place to monitor and warn road users of the manifestation of the bituplaning phenomenon on new porous asphalt surfaces in the Netherlands. (a) For the covering entry of this conference, please see ITRD abstract no. E212865.

• Authors:
  • Bullas, J C
• Publication Date: 2005-5

Language

• English

Media Info

• Pagination: 19P (SESSION 4)
• Monograph Title: International Surface Friction Conference: roads and runways: improving safety through assessment and design, 1-4 May 2005, Christchurch, New Zealand
• Serial:
  • INTERNATIONAL SURFACE FRICTION CONFERENCE, 2005, CHRISTCHURCH, NEW ZEALAND
  • Publisher: TRANSIT NEW ZEALAND

Subject/Index Terms

• TRT Terms: Asphalt; Binders; Braking; Conferences; Dryness; Friction; Pavements; Porous materials; Properties of materials; Roads; Skid resistance; Surfaces; Tires; Traffic signs; Vehicles; Warning systems
• ITRD Terms: 4948: Binder; 1874: Braking; 8525: Conference; 2527: Dryness; 5452: Friction; 2755: Highway; 2955: Pavement; 4946: Porous asphalt; 5925: Properties; 3031: Skid resistance; 6438: Surface; 553: Traffic sign; 1381: Tyre; 1255: Vehicle; 9113: Warning
• Subject Areas: Highways; Materials; Operations and Traffic Management; Pavements; Vehicles and Equipment; I23: Properties of Road Surfaces; I73: Traffic Control;

Filing Info

• Accession Number: 01026745
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Jul 5 2006 12:06PM