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Preflood Road Maintenance Strategy for a Road Authority
| 题名： | Preflood Road Maintenance Strategy for a Road Authority |
| 正文语种： | 英文 |
| 作者： | Civil Engineering Univ |
| 作者单位： | Misbah U.Khan;Mahmoud Mesbah;Luis Ferreira;David J.Williams |
| 关键词： | Pavement management system; Road deterioration (RD) models with flooding; HDM-4; Preflood maintenance strategy |
| 摘要： | 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. |
| 出版年： | 2016 |
| 期刊名称： | Journal of Transportation Engineering |
| 卷： | Vol.142 |
| 期： | No.12 |
| 页码： | 04016068 |
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