EFFECTS OF PAVEMENT ROUGHNESS ON VEHICLE SPEEDS

Vehicle speeds on highways as affected by a variety of factors, such as geometric characteristics of the roadway and traffic conditions, have been extensively studied. One factor that has received little attention is that of pavement condition. This report describes a study conducted in the summer of 1974 to develop relationships between average vehicle speed and pavement condition for two-lane highways. The condition factor chosen was roughness, and 72 sites covering a wide range of roughness were selected. Measurements included speed, roughness, geometric characteristics, and traffic counts. Capacities and volume-capacity ratios of the sections were calculated. A regression model relating average speed to roughness in terms of riding comfort index, volume-capacity ratio, and speed limit was developed. The model is simple and plausible and has a reasonable multiple correlation coefficient (0.77). /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1976/602/602-023.pdf
• Summary URL:
  https://scholar.google.com/scholar_lookup?title=EFFECTS+OF+PAVEMENT+ROUGHNESS+ON+VEHICLE+SPEEDS&author=M.+Karan&author=R.+Haas&author=R.+Kher&publication_year=1976
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309220710
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Theory of Pavement Design. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Karan, M A
  • Haas, Ralph
  • Kher, Ramesh
• Publication Date: 1976

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 122-127
• Monograph Title: Pavement design, evaluation and performance
• Serial:
  • Transportation Research Record
  • Issue Number: 602
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Correlation analysis; Highway capacity; Measurement; Motor vehicles; Pavements; Regression analysis; Riding qualities; Roughness; Speed; Speed limits; Traffic counting; Traffic speed; Traffic volume; Two lane highways
• Old TRIS Terms: Multiple correlation
• Subject Areas: Data and Information Technology; Highways; Pavements;

Filing Info

• Accession Number: 00156016
• Record Type: Publication
• ISBN: 0309220710
• Files: TRIS, TRB
• Created Date: Aug 15 1977 12:00AM