The primary operating characteristic of a pavement at any particular time is the level of service that it provides to the users. One of the important factors influencing levels of serviceability is roadway roughness and one of the generally accepted methods for characterizing roadway roughness is the serviceability index concept. This paper is concerned with methods of achieving this measure for Texas highways through the use of the serviceability-performance concept. This concept requires a correlation between objective, physical measurements of pavement characteristics, and subjective measures of pavement quality by highway users. To obtain these correlations, physical measurements were performed with the SD Profilometer while subjective measurements were provided by a 15-member rating panel. Regression models, relating these measurements, are presented and field presented and field evaluations and subsequent modifications of these models are included. Correlations of these models with an inexpensive roughness measureing device (the Mays Road Meter) are also discussed. This device provides an economical means for rapidly obtaining routine performance information. The SD Profilometer is used a a measurement standard, thus maintaining compatibility in performance measurements. The use of spectral analysis as another means of providing a more comprehensive method of identifying pavement characteristics and characterizing pavement performance is presented. An example of pavement identification in construction control and a brief discussion of current research using spectral analysis for providing a more comprehensive serviceability model are discussed. /Author/

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 739-747
  • Serial:
    • Volume: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00261923
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Oct 22 1974 12:00AM