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Evaluation of the Main Function of Low Impact Development Based on Rainfall Events
Article

Developing a Reliability Index of Low Impact Development for Urban Areas

1
Department of Civil and Environmental Engineering, Hanbat National University, Daejeon 34158, Korea
2
School of Civil Engineering, Chungbuk National University, Cheongju 28644, Korea
*
Author to whom correspondence should be addressed.
Water 2020, 12(11), 2961; https://doi.org/10.3390/w12112961
Received: 22 September 2020 / Revised: 16 October 2020 / Accepted: 19 October 2020 / Published: 22 October 2020
(This article belongs to the Special Issue Advances of Low Impact Development Practices in Urban Watershed)
A defining characteristic of the urbanization is the transformation of existing pervious areas into impervious areas during development. This leads to numerous hydrologic and environmental problems such as an increase in surface runoff due to excess rainfall, flooding, the deterioration of water quality, and an increase in nonpoint source pollution. Several studies propose supplementary measures on environmental change problems in development areas using the low impact development technique. This study investigated the reduction of nonpoint source pollutant loads and flooding in catchments through urban catchment rainfall–runoff management. For the quantitative assessment of flood disasters and water pollution problems, we propose a reliability evaluation technique. This technique refers to a series of analysis methods that determine the disaster prevention performance of the existing systems. As the two factors involve physical quantities of different dimensions, a reliability evaluation technique was developed using the distance measure method. Using the storm water management model, multiple scenarios based on synthetic rainfall in the catchment of the Daerim 2 rainwater pumping station in Seoul, South Korea, were examined. Our results indicate the need for efficient management of natural disaster risks that may occur in urban catchments. Moreover, this study can be used as a primary reference for setting a significant reduction target and facilitating accurate decision making concerning urban drainage system management. View Full-Text
Keywords: low impact development; reliability; distance measure method; storm water management model; runoff quantity; water quality low impact development; reliability; distance measure method; storm water management model; runoff quantity; water quality
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MDPI and ACS Style

Song, Y.H.; Lee, J.H.; Lee, E.H. Developing a Reliability Index of Low Impact Development for Urban Areas. Water 2020, 12, 2961. https://doi.org/10.3390/w12112961

AMA Style

Song YH, Lee JH, Lee EH. Developing a Reliability Index of Low Impact Development for Urban Areas. Water. 2020; 12(11):2961. https://doi.org/10.3390/w12112961

Chicago/Turabian Style

Song, Yang H.; Lee, Jung H.; Lee, Eui H. 2020. "Developing a Reliability Index of Low Impact Development for Urban Areas" Water 12, no. 11: 2961. https://doi.org/10.3390/w12112961

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