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Water 2016, 8(10), 469; doi:10.3390/w8100469

Flood Reduction in Urban Drainage Systems: Cooperative Operation of Centralized and Decentralized Reservoirs

1
School of Civil, Environmental and Architectural Engineering, Korea University, 306, Eng. Building, Anam-dong, Seongbuk-gu, Seoul 02841, Korea
2
Department of Civil Engineering, Dongshin University, Naju 520-714, Korea
3
Research Center for Disaster Prevention Science and Technology, Seoul 02841, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Helena Margarida Ramos
Received: 5 July 2016 / Revised: 13 October 2016 / Accepted: 17 October 2016 / Published: 22 October 2016
(This article belongs to the Special Issue Water Systems towards New Future Challenges)
View Full-Text   |   Download PDF [5261 KB, uploaded 22 October 2016]   |  

Abstract

Failure of drainage systems leads to urban flooding; therefore, structural measures such as the installation of additional drainage facilities, including pump stations and detention reservoirs, have been adopted in the past to prevent and mitigate urban flooding. These measures, however, are costly and time consuming. To maximize flood mitigation efficiency, it is essential to also implement non-structural measures such as effective operation of drainage facilities. In this study, we propose a new cooperative operation scheme for urban drainage systems that involves linking centralized reservoir (CR) and decentralized reservoir (DR) operations by sharing water level information at monitoring nodes. Additionally, we develop a resilience index to assess the system's ability to mitigate, restore, and recover from inundation (i.e., failure). Most results show that flood reduction and resilience in cooperative operations are better than the current operation. However, the results of CR operation for 2010 are worse than the current operation at high monitoring node levels (1.4 m–1.5 m), and the results of DR operation for 2011 are worse than the current operation at low monitoring node levels (0.8 m–0.9 m). All results related to flood reduction and resilience in cooperative operation are superior to the current operation. View Full-Text
Keywords: urban flooding; centralized reservoir; decentralized reservoir; cooperative operation urban flooding; centralized reservoir; decentralized reservoir; cooperative operation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lee, E.H.; Lee, Y.S.; Joo, J.G.; Jung, D.; Kim, J.H. Flood Reduction in Urban Drainage Systems: Cooperative Operation of Centralized and Decentralized Reservoirs. Water 2016, 8, 469.

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