ROAD PROFILE EVALUATION FOR COMPATIBLE PAVEMENT EVALUATION (ABRIDGMENT)

An important application of the Surface Dynamics profilometer is to provide a stable calibration reference for response-type road roughness measuring (RTRRM) instruments. The latter devices, of which the Mays meter is typical, are relatively inexpensive and are used by many agencies for routine pavement monitoring. A special class of profile statistics, termed root-mean-square vertical acceleration (RMSVA), has been shown to reveal many of the road surface properties normally associated with roughness, including those measured by Mays meters. An RMSVA-based roughness index, which was tailored to describe the behavior of eight Mays meters run on 29 pavement test sections, is now the basis of a large-scale calibration program by the Texas State Department of Highways and Public Transportation. Although the Mays meter calibration problem motivated the development of RMSVA roughness indices, careful monitoring of a set of calibration test sections and other pavements has revealed interesting surface properties that could never be detected by Mays meters or by other RTRRM devices that reduce roughness evaluations to a single number. The RMSVA indices computed from a road profile can provide a signature that reflects roughness over a broad range of profile wavelengths. Distinctive signatures that correspond to certain pavement classes, or types of deterioration, have been tentatively identified and are presented here. Their interpretation remains a promising subject for future research. (Author)

Media Info

  • Media Type: Digital/other
  • Features: Figures; References;
  • Pagination: pp 17-19
  • Monograph Title: DISTRESS MEASUREMENT AND INTERACTION OF VEHICLES WITH PAVEMENT SURFACES
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00373013
  • Record Type: Publication
  • ISBN: 0309035058
  • Report/Paper Numbers: HS-035 160
  • Files: HSL, TRIS, TRB
  • Created Date: May 31 1983 12:00AM