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논문 기본 정보

자료유형
학술저널
저자정보
박창규 (세종대학교 건설환경공학과) 김원재 (세종대학교 건설환경공학과) 김태우 (서울특별시 품질시험소 도로포장연구센터) 이진욱 ([재]서울기술연구원 연구기획팀) 백종은 (서울특별시 품질시험소 도로포장연구센터) 이현종 (세종대학교 건설환경공학과)
저널정보
한국도로학회 한국도로학회논문집 한국도로학회논문집 제20권 제3호
발행연도
2018.1
수록면
27 - 37 (11page)

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PURPOSES : The objective of this study is to develop a pavement rehabilitation decision tree considering current pavement condition by evaluating severity and distress types such as roughness, cracking and rutting. METHODS : To improve the proposed overall rehabilitation decision tree, current decision tree from Korea and decision trees from other countries were summarized and investigated. The problem when applying the current rehabilitation method obtained from the decision tree applied in Seoul was further analyzed. It was found that the current decision trees do not consider different distress characteristics such as crack type, road types and functions. Because of this, different distress values for IRI, crack rate and plastic deformation was added to the proposed decision tree to properly recommend appropriate pavement rehabilitation. Utilizing the 2017 Seoul pavement management system data and considering all factors as discussed, the proposed overall decision tree was revised and improved. RESULTS :In this study, the type of crack was included to the decision tree. Meanwhile current design thickness and special asphalt mixture were studied and improved to be applied on different pavement condition. In addition, the improved decision tree was incorporated with the Seoul asphalt overlay design program. In the case of Seoul's rehabilitation budget, rehabilitation budget can be optimized if a 25mm milling and overlay thickness is used. CONCLUSIONS:A practical and theoretical evaluation tool in pavement rehabilitation design was presented and proposed for Seoul City.

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