A Financial Resources Allocation Model Considering Stochastic Travel Time in a Road Network Exposed to a Flood Risk

• TANI Ryuichi

  Graduate School of Engineering, Hokkaido University

• UCHIDA Kenetsu

  Graduate School of Engineering, Hokkaido University

• KIMURA Ichiro

  Graduate School of Engineering, Hokkaido University

抄録

Urban road networks are exposed to various natural hazard risks, such as flood and earthquake. For avoiding serious damages on road infrastructures caused by a natural hazard, it is necessary to invest in the road infrastructures within a limited budget in advance. Thus, this study proposes a model which allocates financial resources optimally to predefined riparian work zones for strengthening a road network against flood damage. The proposed model is formulated as a total costs minimization problem with equilibrium constraints about traffic flows. The average traffic flows are determined by a stochastic user equilibrium assignment model. In the model, the link travel time that follows a Gaussian mixture distribution considering possible rainfall intensities is addressed. Note that the proposed model considers the uncertainties about the road network, recovery time and states of each link. At the end, numerical calculations are conducted in a test network and the results are shown.

収録刊行物

• Journal of the Eastern Asia Society for Transportation Studies

  Journal of the Eastern Asia Society for Transportation Studies 12 (0), 94-113, 2017

  Eastern Asia Society for Transportation Studies

キーワード

• Optimal financial resources allocation
• Stochastic user equilibrium assignment model
• Travel time reliability
• Heavy rainfall
• Flood

詳細情報

• CRID: 1390001205290751360
• NII論文ID: 130006726199
• DOI: 10.11175/easts.12.94
• ISSN: 18811124
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可