THE DEVELOPMENT OF SMOOTHNESS SPECIFICATIONS FOR RIGID AND FLEXIBLE PAVEMENTS IN TEXAS. INTERIM REPORT

Because both the highway agency and the traveling public desire a smooth pavement surface, there exists a need to ensure smoothness and ride quality. Indeed, a smooth road profile has become a standard measure of pavement quality. Smoothly constructed roads are associated with minimal vehicular wear (and therefore cost), user perceptions of quality and acceptability, and, finally, long pavement surface lives. In 1987 the Texas State Department of Highways and Public Transportation (SDHPT) commissioned the Center for Transportation Research (CTR) to develop smoothness specifications for both flexible and rigid pavements. These standards were to be of the "end-use" variety; that is, the standards, applied after the contractor had completed paving a section, would be used to compare the as-built profile with that smoothness desired by the highway agency, using a designated instrument and measurement unit. Deviations from the acceptable profile range would result in either monetary rewards to the contractor for high-quality work exceeding standards, or corrections/penalties for work falling below standard. In 1984 AASHTO began conducting a survey into state smoothness specifications with the objective of recommending a draft smoothness specification for state use. This specification, reported in 1987, was to be evaluated as part of the CTR 1167 study. This report, then, details the initial work on pavement smoothness criteria, including in particular the issues related to financial incentives and the instrumentation used for measuring profiles on newly laid rigid pavements.

  • Supplemental Notes:
    • Research study title: Develop Smoothness Specification for Rigid and Flexible Pavements.
  • Corporate Authors:

    University of Texas, Austin

    Center for Transportation Research, 3208 Red River Street
    Austin, TX  United States  78705

    Texas Department of Transportation

    Transportation Planning Division, P.O. Box 5051
    Austin, TX  United States  78763

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Harrison, R
    • Bertrand, C
  • Publication Date: 1991-1

Language

  • English

Media Info

  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 62 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00625039
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/TX-91+1167-1, Res Rept 1167-1, CTR 3-8-88/1-1167-1
  • Contract Numbers: Study 3-8-88/1-1167
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Oct 6 1993 12:00AM