Incentive Index Developed to Evaluate Storm-Water Low-Impact Designs

Guo, James C. Y.; Blackler, Gerald E.; Earles, T. Andrew; MacKenzie, Ken

doi:10.1061/(asce)ee.1943-7870.0000270

Cited by 22 publications

(10 citation statements)

References 11 publications

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“…LID takes many forms but can generally be thought of as an effort to minimize or prevent concentrated flows of storm water leaving a site [28]. The RWHS is one of the LID techniques in SWMM, and the RWHS is assumed to consist of a given number of fixed-sized cisterns per 1000 ft …”

Section: The Rainwater Harvesting Function Within Low-impact Developmmentioning

confidence: 99%

Optimal Spatial Design of Capacity and Quantity of Rainwater Harvesting Systems for Urban Flood Mitigation

Huang

Hsu

Wei

et al. 2015

Water

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This study adopts rainwater harvesting systems (RWHS) into a stormwater runoff management model (SWMM) for the spatial design of capacities and quantities of rain barrel for urban flood mitigation. A simulation-optimization model is proposed for effectively identifying the optimal design. First of all, we particularly classified the characteristic zonal subregions for spatial design by using fuzzy C-means clustering with the investigated data of urban roof, land use and drainage system. In the simulation method, a series of regular spatial arrangements specification are designed by using statistical quartiles analysis for rooftop area and rainfall frequency analysis; accordingly, the corresponding reduced flooding circumstances can be simulated by SWMM. Moreover, the most effective solution for the simulation method is identified from the calculated net benefit, which is equivalent to the subtraction of the facility cost from the decreased inundation loss. It serves as the initially identified solution for the optimization model. In the optimization method, backpropagation neural network (BPNN) are first applied for developing a water level simulation model of urban drainage systems to substitute for SWMM to conform to newly considered interdisciplinary multi-objective optimization model, and a tabu search-based algorithm is used with the embedded BPNN-based SWMM to optimize the planning solution. The developed method is applied to the Zhong-He District, Taiwan. Results demonstrate that the application of tabu search and the BPNN-based simulation model into OPEN ACCESSWater 2015, 7 5174 the optimization model can effectively, accurately and fast search optimal design considering economic net benefit. Furthermore, the optimized spatial rain barrel design could reduce 72% of inundation losses according to the simulated flood events.

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Section: The Rainwater Harvesting Function Within Low-impact Developmmentioning

confidence: 99%

Optimal Spatial Design of Capacity and Quantity of Rainwater Harvesting Systems for Urban Flood Mitigation

Huang

Hsu

Wei

et al. 2015

Water

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“…In practice, the challenge of stormwater LID design is often related to how to quantify the effectiveness of an LID layout. In Guo et al (2010), the watershed imperviousness was chosen as a basis to evaluate the performances of various LID designs. In the study, the conventional area-weighting method was revised with a pavement-area-reduction factor (PARF) to produce the effective imperviousness.…”

Section: Watershed Managementmentioning

confidence: 99%

Urban Wet‐Weather Flows

Rangarajan¹,

Sample²,

Boone³

et al. 2012

Water Environment Research

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This literature review summarizes significant technical literature published in 2010 and 2011 in the major areas of urban wet-weather flows. The review covers a range of topics including characterization, pollution sources, monitoring and sampling, surface and groundwater impacts, mathematical modeling tools and decision support systems, regulatory policies, and control and treatment technologies. Some gaps in the literature compilation have also been identified and presented to support future research efforts.

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“…However, recent studies [10,23] showed that the TIA may not be an accurate parameter for estimating runoff, because not all stormwater runoff from the TIA flows into the downstream stormwater pipes. Therefore, directly connected impervious area (DCIA) has been proposed as an alternative metric [24,25]. DCIA is a fraction of the impervious area that is hydraulically connected to downstream drainage by a buried pipe route.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Sponge City Construction for Reducing Directly Connected Impervious Areas on Hydrological Responses at the Urban Catchment Scale

Liang

Zhang

Xia

et al. 2020

Water

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Low-impact development (LID) has been widely used at both site-specific and local scales to try and mitigate the impact of urban stormwater runoff caused by increasing impervious urban areas. Recently, the concept of a “sponge city” was proposed by the Chinese government, which includes LID controls at the source, a pipe drainage system midway, and a drainage system for excess stormwater at the terminal. There is a need to evaluate the effectiveness of sponge city construction at the large urban catchment scale, particularly with different spatial distributions of LIDs that reduce directly connected impervious areas (DCIAs). In this paper, the performances of five design scenarios with different spatial distributions but same sizes of LID controls at the urban catchment scale were analyzed using a geographic information system (GIS) of the United States Environmental Systems Research Institute (ESRI)—based Storm Water Management Model (SWMM) of the United States Environmental Protection Agency (USEPA) and MIKE 11 of Danish Hydraulic Institute (DHI) in Xining City, China. Results confirmed the effectiveness of sponge city construction in reducing the urban stormwater runoff. The hydrological performance reduction was positively correlated and linearly dependent on DCIA reduction. Peak flow reduction was most sensitive to DCIA reduction, followed by runoff volume and peak time. As rainfall intensity increased, the hydrological performance was more sensitive to rainfall intensity than DCIA reduction. Results of this study provide new insights for stormwater managers to implement LID more effectively at the urban catchment scale.

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Incentive Index Developed to Evaluate Storm-Water Low-Impact Designs

Cited by 22 publications

References 11 publications

Optimal Spatial Design of Capacity and Quantity of Rainwater Harvesting Systems for Urban Flood Mitigation

Optimal Spatial Design of Capacity and Quantity of Rainwater Harvesting Systems for Urban Flood Mitigation

Urban Wet‐Weather Flows

The Effect of Sponge City Construction for Reducing Directly Connected Impervious Areas on Hydrological Responses at the Urban Catchment Scale

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