PCA ROAD METER MEASURING ROAD ROUGHNESS AT 50 MPH

PROFILOMETERS ARE EXTREMELY USEFUL FOR MEASURING THE ROUGHNESS OF NEWLY CONSTRUCTED PAVEMENT NOT OPENED TO TRAFFIC AND OF SURFACES SUCH AS BRIDGE DECKS WHERE SPEED- DEPENDENT INSTRUMENTS CANNOT BE USED. HOWEVER, ITS VERY LOW OPERATING SPEED (ABOUT 1 MPH) MAKES IT IMPRACTICAL TO USE ON IN-SERVICE HIGHWAYS, TO WHICH THE VERSATILITY AND HIGHER OPERATING SPEED (ABOUT 20 MPH) OF THE ROUGHOMETER ARE MORE SUITED. ON THE OTHER HAND, THE ROUGHOMETER IS ALSO IMPRACTICAL WHEN THOUSANDS OF MILES OF PAVEMENT HAVE TO BE COVERED. THE PRESENT RESEARCH, CONDUCTED IN THE SUMMER OF 1968, SOUGHT TO EVALUATE THE PERFORMANCE OF THE HIGH-SPEED ROAD METER IN COMPARISON WITH THAT OF THE OTHER TWO INSTRUMENTS. BOTH SETS OF DATA WERE CORRELATED WITH RATINGS ASSIGNED BY A SINGLE INDIVIDUAL. ALL THE DATA UNDERWENT REGRESSION ANALYSIS. THE CORRELATION COEFFICIENTS WERE FOUND TO BE OF A HIGH ORDER.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 51-65
  • Monograph Title: PAVEMENT EVALUATION USING ROAD METERS
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00207533
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: May 21 1973 12:00AM