Research efforts which reviewed methods for seal coat programming used by highway agencies, resulted in the development of a Surface Condition Rating System and the field testing of the procedure in several states. The Rating System consists of a surface rating form to be completed for each section of road being considered for seal coat, and complete instructions for use of the form. A philosophy of maintenance can be established using this rating system. If it is desired to follow a preventive maintenance philosophy, pavements with high traffic volume should receive seal coats when the surface rating drops to a level of 3.0. With a less conservative approach, the rating may be allowed to drop between 1.5 and 2.0. By putting numerical ratings on the various levels of surface condition it is possible to establish trends of ratings with time and traffic. This rating system can be used within maintenance management systems to determine when and what type of seal coats would be most appropriate.

  • Digital Copy:
  • Supplemental Notes:
    • This report appeared in NCHRP Summary of Progress Through 1976. The essential findings of the study have been published as NCHRP Research Results Digest 48.
  • Corporate Authors:

    Transportation Research Board

    National Cooperative Highway Research Program
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Skok Jr, E L
    • Kersten, M S
  • Publication Date: 1976

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00149198
  • Record Type: Publication
  • Report/Paper Numbers: Project 10-9
  • Files: TRIS, TRB
  • Created Date: Mar 30 1977 12:00AM