Pavement design optimization considering costs and preventive interventions

João Santos, Adelino Ferreira*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)

Abstract

In Portugal, as in many other countries, due to the economic crisis, the trend of budgetary pressures on highway agencies is increasing. At the same time, road users are increasingly demanding in terms of highway quality, comfort, and safety. Several highway projects have been delayed because of budget constraints. To meet these challenges highway agencies are looking for more cost-effective methodologies for pavement management at project-level. This paper presents a new pavement design optimization model, called OPTIPAV, which considers pavement performance, construction costs, maintenance and rehabilitation costs, user costs, the residual value of the pavement at the end of the project analysis period, and preventive maintenance and rehabilitation interventions. It was developed and programmed to help pavement designers to choose the best pavement structure for a road or highway. The results obtained by the application of the new pavement design optimization model clearly indicate that it is a valuable addition to the road engineers's toolbox.

Original languageEnglish
Pages (from-to)911-923
Number of pages13
JournalJournal of transportation engineering
Volume138
Issue number7
DOIs
Publication statusPublished - 1 Jul 2012
Externally publishedYes

Keywords

  • Deterministic pavement performance models
  • Genetic algorithms
  • Life-cycle cost analysis
  • Optimization models
  • Pavement design
  • Pavement maintenance and rehabilitation

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