EFFECTS OF ROUGHNESS AND LOOSENESS OF ROAD SURFACE ON OPERATING COSTS ON GRAVEL ROADS

SORATIEN TASAISUUDEN JA PINNAN KIINTEYDEN VAIKUTUKSET AJOKUSTANNUKSIIN

This study examines the effects of roughness and looseness on user-costs on gravel roads. User-costs consists of vehicle operating costs, time costs, accident costs and environmental costs. This study clarifies vehicle operating costs, time costs and accident costs. The study consists of three parts. The first part introduces the maintenance of gravel roads, road looseness classification and the measuring of roughness. The second part is the literature study of operating costs on gravel roads, and the third part introduces the results of the field study on fuel consumption and driving speeds carried out during the summer 1995. In this study looseness was evaluated using the looseness classification developed by the Finnish National Road Administration. This classification comprises five classes. In class 1 the road is classified as very soft and in class 5 the road is classified as hard and there is no loose material on it. Roughness has been evaluated using the International Roughness Index IRI. In empirical research IRI-values were measured using Roadman-profilometer.

  • Availability:
  • Corporate Authors:

    TIELAITOS (FINNISH NATIONAL ROAD ADMINISTRATION)

    OPASTINSILTA 12 A
    HELSINKI,   Finland  FIN-00520
  • Authors:
    • KARTTUNEN, J
  • Publication Date: 1995

Language

  • Finnish

Media Info

  • Features: References;
  • Pagination: 67 p.
  • Serial:
    • TIELAITOKSEN SELVITYKSIA
    • Volume: 84
    • Issue Number: TIEL 3200359
    • Publisher: TIELAITOS (FINNISH NATIONAL ROAD ADMINISTRATION)
    • ISSN: 0788-3722

Subject/Index Terms

Filing Info

  • Accession Number: 00729361
  • Record Type: Publication
  • Source Agency: VTT Technical Research Centre of Finland
  • ISBN: 951-726-162-4
  • Files: ITRD
  • Created Date: Dec 26 1996 12:00AM