THE OPTIMAL REPAIR AND REPLACEMENT MODEL OF PAVEMENT STRUCTURE

舗装構造の最適補修更新モデル

The deterioration processes of pavement are compound ones characterized by surface deterioration as well as capacity. This study proposes a methodology to find the optimal inspection policy for road pavement with uncertain deterioration processes. Since the deterioration progresses are characterized by a lot of uncertainty, the pavement conditions cannot be deterministically evaluated unless the inspection or repair activities are carried out. The road administrators have to make the decisions of whether repair should be implemented based upon the results of inspection. In this paper, the value of the inspection is evaluated by use of real option theory, and the optimal inspection and repair model is formulated to investigate the optimal inspection frequencies an repair policy which may minimize the expected life cycle costs. Finally, the validity of the methodology presented in the paper is investigated by a case study dealing with the expressway in the real world.　舗装の劣化過程は路面の劣化過程と舗装全体の耐荷力の低下過程で構成される複合的劣化過程である．耐荷力の低下は路面の劣化速度に影響を及ぼす．管理者は路面性状調査により路面の健全度を観測できる．一方，耐荷力の低下に関してはFWD調査等により部分的に観測可能である．本研究では，このような特性を有する路面の劣化過程を，耐荷力の状態に依存する混合マルコフ過程として記述する．そのうえで，期待ライフサイクル費用を最小にするような最適調査間隔と補修更新政策を同時に決定することを目的とする最適補修更新モデルを提案する．さらに，具体的にNEXCOが管轄する高速道路を対象とした適用事例を通じて，最適補修更新モデルの有効性を実証的に検証する．

• Record URL:
  • https://doi.org/10.2208/jscejpe.68.54
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=THE+OPTIMAL+REPAIR+AND+REPLACEMENT+MODEL+OF+PAVEMENT+STRUCTURE&author=K.+Kobayashi&author=M.+EGUCHI&author=A.+OI&author=K.+AOKI&author=K.+Kaito&author=Y.+MATSUMURA&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/21856559
• Authors:
  • Kobayashi, Kiyoshi
  • EGUCHI, Masayuki
  • OI, Akira
  • Aoki, Kazuya
  • Kaito, Kiyoyuki
  • MATSUMURA, Yasunori
• Publication Date: 2012

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 54-68
• Serial:
  • Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
  • Volume: 68
  • Issue Number: 2
  • Publisher: Japan Society of Civil Engineers
  • ISSN: 2185-6559
  • Serial URL: https://www.jstage.jst.go.jp/browse/jscejpe/-char/en

Subject/Index Terms

• TRT Terms: Case studies; Deterioration; Expressways; Inspection; Life cycle costing; Pavement maintenance; Pavement management systems; Repairing
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01504668
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jan 27 2014 9:40AM