WASHINGTON PAVEMENT RATING SYSTEM: PROCEDURES AND APPLICATION

SINCE ITS INCEPTION IN 1965, A PAVEMENT CONDITION RATING SYSTEM DEVELOPED BY THE MATERIALS DIVISION OF THE WASHINGTON DEPARTMENT OF HIGHWAYS HAS BEEN EMPLOYED IN EVALUATING AND PREDICTING THE REMAINING SERVICE LIVES FOR SOME 7,000 MILES OF STATE HIGHWAYS. THE METHOD, USED BY HIGHWAY PERSONNEL WITH LITTLE OR NO PREVIOUS EXPERIENCE IN PAVEMENT EVALUATION HAS PROVIDED QUICK, STATISTICALLY RANKED RATINGS FROM SURVEYS OF THE ENTIRE ROADWAY SYSTEM PERFORMED BY AS FEW AS 4 TEAMS DURING 4 TO 5 WEEKS OF FIELD WORK. THE METHOD INVOLVES A COMBINED RATING OF THE QUALITY OF RIDE PROVIDED BY A PAVEMENT AND THE DEGREE OF STRUCTURAL DISTRESS OBSERVED IN THAT PAVEMENT. FOR APPLICATION TO THE PRIORITY PROGRAMMING SYSTEM AS USED IN WASHINGTON STATE FOR LEGISLATIVE BUDGETING OF HIGHWAY CONSTRUCTION, THE RESULTS OF THE ORIGINAL SURVEY WERE ANALYZED TO DEVELOP CRITICAL RATING LEVELS FOR THE VARIOUS FUNCTIONAL CLASSES OF HIGHWAYS AND TO DEVELOP FORMULAS FOR PREDICTING WHEN ANY GIVEN ROADWAY WILL REACH THIS CRITICAL LEVEL. THE CRITICAL RATING LEVEL CAN BE DEFINED AS THAT NUMERICAL RATING AT WHICH SOME FORM OF ROADWAY REHABILITATION IS WARRANTED. FROM THE INITIAL SURVEY BY THIS METHOD, ANNUAL POINT LOSS RATES WER BASED ON A ONE-TIME SURVEY AND WERE SUBJECT TO MUCH SPECULATION, BUT SUBSEQUENT SURVEYS HAVE PROVED THEM TO BE SURPRISINGLY ACCURATE AS ESTIMATES OF AVERAGE PAVEMENT DETERIORATION. TO DATE, THE METHOD HAS BEEN USED IN 3 STATEWIDE SURVEYS AND NUMEROUS SPECIAL EVALUATIONS OF SELECTED PAVEMENT SEGMENTS. IT HAS ALSO BEEN EMPLOYED BY OTHER GOVERNMENTAL AGENCIES IN ITS ORIGINAL FORM AS WELL AS IN SLIGHTLY MODIFIED VERSIONS AS DICTATED BY SPECIFIC REQUIREMENTS. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/sr/sr116/116-014.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309018439
• Supplemental Notes:
  • 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:
  • LeClerc, R V
  • Marshall, T R
• Conference:
  • Western Summer Meeting
  • Location: Sacremento California, United States
  • Date: 1970-8-17 to 1970-8-19
• Publication Date: 1971

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 112-121
• Monograph Title: Improving Pavement and Bridge Deck Performance
• Serial:
  • Highway Research Board Special Report
  • Issue Number: 116
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Defects; Evaluation; Forecasting; Highway maintenance; Pavement distress; Pavement performance; Pavements; Ratings; Riding qualities; Roughness; Statistical analysis; Surveys; Systems
• Subject Areas: Data and Information Technology; Highways; Pavements;

Filing Info

• Accession Number: 00207256
• Record Type: Publication
• ISBN: 0309018439
• Files: TRIS, TRB, ATRI
• Created Date: Jun 29 1971 12:00AM