INFLUENCE OF STUD SIZE ON PAVEMENT WEAR AND STUD EFFICIENCY. OBSERVATIONS MADE IN FRANCE AND THE USA

DUBBSTORLEKENS INVERKAN PAA VAEGSLITAGE OCH VAEGGREPP. VAERDERING AV ERFARENHETER I FRANRIKE OCH USA

One of the most important parts of the French stud regulations concerns stud flange diameter (max 6,5 mm) and stud weight (max 2g). A working group at the National Swedish Road and Traffic Research Institute has studied the investigations which support the new regulations in France are discussed the results with French experts. An investigation at Washington State University, USA, has also been studied. The investigations cover pavement wear (France and USA) and stud efficiency (France only). The pavement wear tests have been carried out in special outdoor machines on circular test tracks with different types of studs on real pavements. The stud efficiency has been studied at comparative braking and concerning tests with different cars and studded tyre equipment on ice tracks. The general conclusion that small flange studs cause less pavement wear than conventional studs must be accepted. However, the rate of wear in relation to increasing flange diameter and stud weight seems to be overestimated. It is not shown in a significant way that the efficiency of light, small flange studs are comparable to the efficiency of conventional studs. (TRRL)

Language

  • Swedish

Media Info

  • Features: References;
  • Pagination: 25 p.
  • Serial:
    • VTI MEDDELANDE
    • Issue Number: 249
    • Publisher: Swedish National Road and Transport Research Institute (VTI)
    • ISSN: 0347-6049

Subject/Index Terms

Filing Info

  • Accession Number: 00349517
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Jun 30 1982 12:00AM