ANALYSIS AND USE OF CONDITION DATA IN THE DESIGN OF PAVEMENTS
PAVEMENT CONDITION SURVEYS FOR DESIGN PURPOSES SHOULD RESULT IN A RATING /OR RATINGS/ WHICH WOULD INDICATE BOTH THE RIDING COMFORT AND THE STRUCTURAL ADEQUACY OF A PAVEMENT . THE PRESENT SERVICEABILITY INDEX /PSI/ IS ONE MEANS OF OBTAINING SUCH RATINGS. HOWEVER, FOR FLEXIBLE PAVEMENTS THE EFFECT OF CRACKING AND PATCHING ON THE PSI IS SMALL /ONLY 0.3 IN A SCALE FROM 0.0 TO 5.0/. CASES HAVE BEEN NOTED IN VIRGINIA WHERE RATHER SEVERELY CRACKED PAVEMENTS HAVE HIGHER PSI VALUES THAN NEW PAVEMENTS WITH POORER RIDING QUALITY. IN ORDER TO ESTIMATE FUTURE SERVICEABILITY FOR DESIGN AND MAINTENANCE PURPOSES A RATING IS REQUIRED WHICH FURTHER DESCRIBES STRUCTURAL ADEQUACY. STRIP FILM PHOTOGRAPHY HAS BEEN FOUND USEFUL FOR MEASURING CRACKING AND PATCHING OF RIGID PAVEMENTS.
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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.
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Authors:
- Nicholas Jr, Frank P
- Publication Date: 1963
Media Info
- Media Type: Digital/other
- Pagination: pp 10-12
- Monograph Title: Pavement condition evaluation
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Serial:
- Highway Research Record
- Issue Number: 40
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Condition surveys; Estimating; Evaluation; Flexible pavements; Forecasting; Life span; Pavement performance; Pavements; Photography; Rigid pavements; Service life; Serviceability; Strength of materials; Structural analysis; Surveys
- Uncontrolled Terms: Photographic surveys; Structural adequacy
- Old TRIS Terms: Pavement serviceability index; Strip
- Subject Areas: Design; Highways; Pavements; Society;
Filing Info
- Accession Number: 00206197
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Jul 1 1994 12:00AM