AN OPTIMAL DESIGN METHOD TO REHABILITATE LOW-VOLUME ASPHALTIC ROADS

A long-term pavement monitoring program that has been ongoing in Brazil for more than 10 years allowed the development of performance prediction models for as-constructed and rehabilitated pavements. The models, developed through multiple-regression analysis, can be used to predict pavement roughness, ravelling, and cracking as a function of significant variables that define pavement structure, environment, and traffic loads. These models are used to develop a design method that selects the optimal rehabilitation strategy over a defined analysis period. The design approach has been implemented as a microcomputer program that generates alternative strategies, predicts the performance of each strategy in comparison with allowable criteria, and finally produces a set of the five best, feasible strategies, according to the predicted life-cycle rehabilitation cost. This design method can be used as a project-level pavement management tool that is compatible with the needs of low-volume road links in tropical and subtropical environments. In addition to producing optimum designs, it can also be used effectively to conduct a sensitivity analysis of the effects of critical input variables.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1987/1106v1/1106v1-032.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=AN+OPTIMAL+DESIGN+METHOD+TO+REHABILITATE+LOW-VOLUME+ASPHALTIC+ROADS&author=C.+Queiroz&author=P.+Coelho&author=J.+Magalhaes&author=N.+Robertson&publication_year=1987
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309044545
• Supplemental Notes:
  • This paper appeared in Transportation Research Record N1106, Fourth International Conference on Low-Volume Roads, Volume 1. 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:
  • Queiroz, Cesar A V
  • Coelho, Paulo S M
  • Magalhaes, Joao P
  • Robertson, Neil F
• Conference:
  • International Conference on Low Volume Roads, 4th, 1987, Ithaca, New York, USA
• Publication Date: 1987-8

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 244-251
• Monograph Title: FOURTH INTERNATIONAL CONFERENCE ON LOW-VOLUME ROADS. VOLUME 2
• Serial:
  • Transportation Research Record
  • Issue Number: 1106
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Asphalt pavements; Design; Design methods; Driver rehabilitation; Forecasting; Low volume roads; Maintenance management; Mathematical models; Microcomputers; Multiple regression analysis; Optimization; Pavement cracking; Pavement management systems; Pavement performance; Roughness; Sensitivity analysis; Stripping (Pavements); Tropics
• Uncontrolled Terms: Maintenance costs; Rehabilitation
• Old TRIS Terms: Multiple regression; Optimum design
• Subject Areas: Design; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 00473121
• Record Type: Publication
• ISBN: 0309044545
• Files: TRIS, TRB
• Created Date: Sep 30 1988 12:00AM