ANALYSIS OF DETERIORATION MODELS FOR LIGHTLY LOADED THIN SEAL FLEXIBLE PAVEMENTS

A set of deterioration models is required to manage local government authority (LGA) pavements in a cost-effective manner; yet, most existing deterioration models have been derived for the major highways of the State Road Authority system. LGA pavements are different in terms of pavement life, the effect of the environment, loading, and expectations of performance with respect to riding quality. There is a greater emphasis on sustained light routine maintenance in LGAs. There is a need to develop models that more closely represent LGA pavements so they can be used to forecast the deterioration of the asset and to provide better guidance for rehabilitation planning. Existing pavement deterioration models, such as Highway Development Management-III (HDM-III), were examined for application to the Australian LGA pavement set. In general, such models were too complex for use in LGAs, and they also used roughness as a performance measure. Roughness is not commonly measured in LGA pavement networks. Other studies have shown that HDM-III could overestimate the deterioration of lightly loaded pavements. For this study, data on deterioration of several LGA pavements were collected and analyzed. Visual assessment data on pavement condition were captured in a "snapshot" survey of pavements of different ages. Thus, the data represent an age cross-section sample. Little or no correlation was found between any of the performance indicators and age when the full data sets were used for the analyses. Some correlation was apparent with the averaged data for each age. Even then, some of the trendlines observed indicated a performance with age, contrary to normal expectations. It appears that factors besides age have a significant influence on the behavior of LGA pavement.

• Record URL:
  https://doi.org/10.3141/1819b-37
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=ANALYSIS+OF+DETERIORATION+MODELS+FOR+LIGHTLY+LOADED+THIN+SEAL+FLEXIBLE+PAVEMENTS&author=K.+McManus&author=J.+Metcalf&publication_year=2003
• Availability:
  • Find a library where document is available. Order URL: http://www.trb.org/Main/Public/Blurbs/152846.aspx
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1819, Volume 2, Eighth International Conference on Low-Volume Roads 2003.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • McManus, K J
  • Metcalf, J B
• Conference:
  • Eighth International Conference on Low-Volume Roads
  • Location: Reno, Nevada
  • Date: 2003-6-22 to 2003-6-25
• Publication Date: 2003

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 294-298
• Serial:
  • Transportation Research Record
  • Issue Number: 1819
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Condition surveys; Correlation analysis; Data collection; Deterioration; Flexible pavements; Local government; Low volume roads; Pavement management systems; Pavement performance; Rehabilitation; Service life
• Identifier Terms: HDM-III (Computer program)
• Geographic Terms: Australia
• Subject Areas: Data and Information Technology; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00942548
• Record Type: Publication
• ISBN: 0309077486
• Files: TRIS, TRB, ATRI
• Created Date: May 15 2003 12:00AM