MEASUREMENT OF SURFACE REGULARITY

MAETNING AV BELAEGGNINGSYTAN

Instruments used by Finnish road authorities are: Finnish Road Monitor which is based on ultrasound measurement; profilograph; 3D map vision which is based on laser and video. Riding comfort is determined by longitudinal road profile. This is characterised by IRI value which is combined with transverse profile measurements. IRI is measured by Road Monitor and Roadman. The latter is found reliable. Measurements are also made of friction (for lateral force and braked wheel), optical properties, dynamic load on vehicles (with a strain gauge on rear axle or by simulation), bearing strength (with plate loading and falling weight measurement, high speed deflectometer). For the covering abstract of the conference see IRRD 875360.

Language

  • Swedish

Media Info

  • Pagination: p. 35-40
  • Serial:
    • Issue Number: 723

Subject/Index Terms

Filing Info

  • Accession Number: 00717853
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Files: ITRD
  • Created Date: Mar 20 1996 12:00AM