COMPARISON OF DIFFERENT METHODS OF MEASURING PAVEMENT CONDITION INTERIM REPORT

EIGHT DIFFERENT ROAD ROUGHNESS MEASUREMENT DEVICES WERE EVALUATED IN THE FIELD BY A STATISTICAL APPROACH TO THAT USED IN THE ANALYSIS OF THE AASHO ROAD TEST DATA. FORTY-FIVE PAVEMENT SECTIONS, INCLUDING FLEXIBLE, RIGID, AND OVERLAY TYPES OF CONSTRUCTION, WERE EVALUATED BY THE MEASURING DEVICES AND BY THREE RATING PANELS. THE MEASUREMENT DEVICES, INCLUDED THE BUREAU OF PUBLIC ROADS TYPES OF ROUGHOMETERS, FOUR DIFFERENT TYPES OF PROFILOMETERS, A TEXTURE METER, AN ACCELEROMETER SYSTEM, AND AN INSTRUMENT FOR MEASURING VARIATION IN TIRE PRESSURES. REGRESSION EQUATIONS WHICH RELATE PAVEMENT RATING AND OBJECTIVE MEASUREMENTS ARE PRESENTED FOR EACH INSTRUMENT. THE CONCLUSIONS WERE BASED LARGELY UPON COMPARISONS OF THE CORRELATION COEFFICIENTS AND STANDARD ERRORS OF ESTIMATE OBTAINED FOR THE REGRESSION ANALYSIS. THE STUDY INDICATED THAT, FROM THE STANDPOINT OF PREDICTING SERVICEABILITY, LITTLE DIFFERENCE EXISTED AMONG THE INSTRUMENTS.

Media Info

  • Pagination: 29p
  • Serial:
    • NCHRP Report
    • Issue Number: 7
    • Publisher: Transportation Research Board
    • ISSN: 0077-5614
  • Publication flags:

    Open Access (libre)

Subject/Index Terms

Filing Info

  • Accession Number: 00206221
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Nov 7 1994 12:00AM