Earticle

초록

영어

Water distribution networks (WDNs) are critical urban infrastructures responsible for delivering sufficient quantity and quality of water to end users. As WDNs are subject to direct damage during disasters, can trigger cascading failures, and significantly affect emergency response capacity, they represent a key target in urban disaster management. In this context, scenario-based planning has been applied in WDN design to address uncertainties in system performance arising from disaster events. Building on this, the concept of regret cost from behavioral economics has recently been incorporated into scenario-based planning to capture the gap between actual design decisions and scenario-optimal solutions. This regret cost formulation can be defined in various ways depending on how recovery is represented. However, studies that systematically compare these different definitions remain limited. To address this gap, this study proposes regret cost assessment methodologies defined by different design response strategies and examines their implications for design evaluation. Three types of methodologies are proposed, and regret costs are quantified for each approach. These methodologies were applied to the Anytown network, a hypothetical benchmark system (Walski et al., 1987), under various disaster scenarios. The results demonstrate that regret cost evaluation depends on how penalties are formulated, and different approaches provide distinct insights, with certain methodologies identifying the boundaries of acceptable performance for each design alternative. The proposed approach supports informed decisionmaking by deriving compromise solutions that account for a range of disaster scenarios, enabling effective mitigation investments and advancing the development of more resilient and preventive water distribution systems.

저자

• Chae-Rin Lee [ School of Civil, Environmental and Architectural Engineering, Korea University ]
• Donghwi Jung [ School of Civil, Environmental and Architectural Engineering, Korea University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국재난정보학회 학술발표대회

• 간기

  부정기

• 수록기간

  2005~2026

• 십진분류

  KDC 338 DDC 361