Real-Time Integrated Operation for Urban Streams with Centralized and Decentralized Reservoirs to Improve System Resilience

Water

卷:11

YoungHwan Choi¹  EuiHoon Lee²  JoongHoon Kim³ 

[1] Research Center for Disaster Prevention Science and Technology, Korea University, Seoul 02841, Korea;

[2] School of Civil Engineering, Chungbuk National University, Cheongju 28644, Korea;

[3] School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Korea;

关键词: integrated operation;    urban stream;    urban drainage facility;    revised resilience index;   

DOI  :  10.3390/w11010069

来源: DOAJ

【 摘 要 】

Recently, the number of extreme rainfall events has increased because of climate change. The ever-widening impervious area in urban watersheds also continuously augments runoff volume. Most measures to prevent urban inundation are structural, such as the construction, rehabilitation, and replacement of urban drainage facilities. Because structural measures require time and money, nonstructural measures are also required for the efficient prevention of urban inundation. Current operations in Korea focus on the individual operation of urban drainage facilities while neglecting the status of effluent streams. A study on urban drainage facilities that considers the status of urban streams is necessary to improve the operation of drainage facilities in urban areas. A revised resilience index is suggested to evaluate measures. For the historical rainfall event in 2010, the system resilience for current and integrated operations was 0.199 and 0.238, respectively. For the 2011 event, the system resilience for current and integrated operations was 0.064 and 0.235, respectively. The integrated operation exhibited good performance for the 2010 and 2011 events. Based on the results of this study, an operation as a nonstructural measure for the total management of urban areas is proposed. The revised resilience index could support decision-making processes for flood-management plans.

【 授权许可】

Unknown