Preflood Road Maintenance Strategy for a Road Authority
Publication: Journal of Transportation Engineering
Volume 142, Issue 12
Abstract
This paper has derived a preflood road maintenance strategy. It provides an innovative approach by upgrading pavement strength now (Year 1 of the analysis) with a thin overlay, and then evaluating pavement lifecycle performance if a flood comes in different years. An after-flood treatment strategy would also be a part of this strategy package. The study has considered normal deterioration after a treatment given in Year 1 and uses the new roughness and rutting based road deterioration (RD) models to predict after-flood deterioration before providing postflood treatments. The study has used highway development and management (HDM-4) model for obtaining after-flood treatments. The results show pavement performance, necessary treatments at Year 1 and any year, required budget, and economic results. For a case study in Queensland, Australia, the treatment cost in Year 1 was about $21.13 billion, and the total preflood strategy cost is $37 billion to $38 billion. A thin overlay is adequate for after-flood rehabilitation. This preflood strategy is compared with a recently derived postflood strategy, and it appears that a preflood strategy can maintain the network better and demonstrate positive economic benefits.
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Acknowledgments
The authors would like to thank the Department of Transport and Main Roads of Queensland for supporting the current research through their 34,000 km road database. This study is partially supported by a Discovery Early Career Researcher Award (DECRA) from the Australian Research Council.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 142 • Issue 12 • December 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Mar 29, 2016
Accepted: Jul 7, 2016
Published online: Aug 30, 2016
Published in print: Dec 1, 2016
Discussion open until: Jan 30, 2017
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