Pavement Performance Modeling Using Piecewise Approximation
A successful pavement management system requires an accurate pavement performance prediction model. A novel pavement performance model using the piecewise approximation approach was developed to estimate the pavement serviceable life. It can be broadly applied to estimate pavement performance of any distress types or indexes. The basic theory of the piecewise approximation is to divide the whole pavement serviceable life into three zones: Zone 1 for early age pavement distress, Zone 2 in rehabilitation stage, and Zone 3 for overdistressed situations. Historical pavement performance data are regressed independently in each time zone. This approach can accurately predict pavement distress progression trends in each individual zone by eliminating possible impacts from biased data in other zones. This paper describes the theoretical piecewise approximation process of data classification and model regression and then demonstrates an implementation for a group of Washington State Department of Transportation asphalt concrete pavements. The results are compared with the "Mechanistic–Empirical Pavement Design Guide" incremental damage approach, the current Washington State Pavement Management System (WSPMS) exponential model, and ordinary regression on all data points. Results indicate that the proposed approach is able to estimate the most accurate rehabilitation due year and to predict the performance trends for each divided zone. The piecewise approximation approach is planned for implementation into the WSPMS and will play an important role in decision making for future pavement rehabilitations.
- Record URL:
- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://trb.org/Main/Blurbs/Pavement_Management_2010_Volume_1_164476.aspx
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Authors:
- Li, Jianhua
- Luhr, David R
- Uhlmeyer, Jeffrey S
- Publication Date: 2010
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 24-29
- Monograph Title: Pavement Management 2010, Volume 1
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Issue Number: 2153
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Asphalt concrete pavements; Decision making; Pavement design; Pavement distress; Pavement management systems; Pavement performance; Rehabilitation (Maintenance); Service life
- Identifier Terms: Mechanistic-Empirical Pavement Design Guide
- Uncontrolled Terms: Piecewise approximation
- Geographic Terms: Washington (State)
- Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;
Filing Info
- Accession Number: 01152471
- Record Type: Publication
- ISBN: 9780309143004
- Report/Paper Numbers: 10-2384
- Files: TRIS, TRB, ATRI
- Created Date: Mar 16 2010 6:13AM