DESCRIPTION AND EVALUATION OF ALASKA'S PAVEMENT RATING PROCEDURE
Pavement condition rating methods used on Alaska's roadways since 1978 are described and examined. The methods are intended to provide the specific performance data necessary to optimize construction and maintenance planning and the allocation of available funds. Rating elements include simplified measurements of ride roughness, fatigue (alligator) cracking, patching, and rut depth. These features are reported individually and are also combined with traffic data to indicate more general levels of roadway serviceability. Field evidence shows that a high degree of variability exists in the measurement of cracking, patching, and rutting. Coefficients of variation above 20 percent were estimated for each type of rating element from experimentally repeated measurements. On a given road section estimates of fatigue cracking made by 15 crews differed by up to twice the calculated average. Rut depth measurements were typified by calculated standard deviations of about half the mean value. Report findings suggest that great care be exercised on future pavement performance inventories. Standardization techniques are suggested that should improve manual rating methods. Mechanized or electronic data acquisition techniques must be developed to eliminate human error.
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Supplemental Notes:
- Publication of this paper sponsored by Committee on Monitoring, Evaluation, and Data Storage. 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:
- McHattie, Robert L
- Connor, Billy G
- Publication Date: 1983
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 61-72
- Monograph Title: Pavement management and evaluation
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Serial:
- Transportation Research Record
- Issue Number: 938
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Evaluation; Maintenance management; Patching; Pavement cracking; Pavement management systems; Pavement performance; Pavement ruts; Pavements; Ratings; Standardization
- Uncontrolled Terms: Pavement conditions; Rut
- Geographic Terms: Alaska
- Subject Areas: Administration and Management; Design; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways;
Filing Info
- Accession Number: 00387128
- Record Type: Publication
- ISBN: 0309036542
- Files: TRIS, TRB
- Created Date: Aug 30 1984 12:00AM