USE OF PROFILE WAVE AMPLITUDE ESTIMATES FOR PAVEMENT SERVICEABILITY MEASURES

FOR A NUMBER OF YEARS, ENGINEERS WERE INTERESTED IN DEVELOPING OBJECTIVE CRITERIA FOR DESIGNING AND MAINTAINING HIGHWAYS ON THE BASIS OF PAVEMENT PERFORMANCE, I.E., RIDING QUALITY. THE DEVELOPMENT OF THE SERVICEABILITY PERFORMANCE CONCEPT BY CAREY AND IRICK PROVIDED A METHOD FOR DEVELOPING SUCH CRITERIA. ALTHOUGH THIS METHOD MAY SEEM RATHER CRUDE TO SOME, IT IS STILL THE BEST METHOD AVAILABLE OF THOSE THAT CONSIDER THE SUBJECTIVE RIDING-QUALITY MEASUREMENTS OF HIGHWAY USERS. SEVERAL CLASSES OF INSTRUMENTS HAVE BEEN USED FOR OBTAINING THE OBJECTIVE MEASUREMENTS REQUIRED FOR THIS CONCEPT; ONE IS THE SLOPE-VARIANCE MEASURING DEVICE. SERVICEABILITY INDEX MODELS WERE DEVELOPED BASED ON SLOPE VARIANCE OF ROAD PROFILE DATA OBTAINED WITH THE SURFACE DYNAMICS PROFILOMETER. SUBSEQUENTLY, A SERVICEABILITY INDEX MODEL WAS DEVELOPED BASED ON PROFILE WAVE AMPLITUDE ESTI- MATES OF THE ROAD PROFILE DATA. THIS LATTER MODEL HAS BEEN FOUND TO BE SUPERIOR TO THE SLOPE VARIANCE MODEL AND HAS NOW BEEN USED EXTENSIVELY FOR PROVIDING MEASUREMENTS IN TEXAS. THIS PAPER DESCRIBES THIS MODEL AND SOME OF THE RESULTS OF ITS USES IN FIELD OPERATIONS.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1973/471/471-011.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309022568
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Pavement Condition Evaluation. 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:
  • Walker, Roger S
  • Hudson, W Ronald
• Conference:
  • 52nd Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1973-1-22 to 1973-1-26
• Publication Date: 1973

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 110-117
• Monograph Title: Evaluation of pavement surface properties and vehicle interaction
• Serial:
  • Highway Research Record
  • Issue Number: 471
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Amplitude (Physics); Mathematical models; Pavement performance; Profilometers; Riding qualities; Roads; Roughness; Slopes; Variance; Wavelength
• Non-Preferred Terms: Serviceability
• Uncontrolled Terms: Models; Road profile; Serviceability Index
• Subject Areas: Design; Highways; Pavements;

Filing Info

• Accession Number: 00207645
• Record Type: Publication
• ISBN: 0309022568
• Files: TRIS, TRB
• Created Date: Apr 27 1974 12:00AM