Optimization of low impact development layout designs for megacity flood mitigation

Huang, Chien‐Lin; Hsu, Nien‐Sheng; Liu, Hung-Jen; Huang, Yao-Hsien

doi:10.1016/j.jhydrol.2018.07.044

Cited by 124 publications

(57 citation statements)

References 18 publications

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“…We selected these four LID techniques based on the land-use type of the study area, the suggestion of the relevant authority's research [38], and the layout principle of LIDs proposed by Bai et al [23] and Huang et al [39]. Green roofs were selected because there are many buildings with traditional roofs in the study area; permeable pavements were selected because there are pedestrian roads, parks, and squares in the study area; rain gardens were selected because there are institutions in the study area; and concave greenbelts were selected because most of the study area comprises low-lying areas.…”

Section: Determination Of Parametersmentioning

confidence: 99%

“…As shown in Table 5. Each LID facility was distributed based on the principles proposed by Huang et al [39] and Bai et al [23]. Green roofs, concave greenbelts, and rain gardens were deployed in densely populated communities; permeable pavements were deployed on pedestrian roads, parks, and squares; and concave greenbelts and rain gardens are deployed in low-lying parts of the study area.…”

Section: Design Scenariosmentioning

confidence: 99%

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Comprehensive Performance Evaluation System Based on Environmental and Economic Benefits for Optimal Allocation of LID Facilities

Bai¹,

Li²,

Zhang³

et al. 2019

Water

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In recent years, urban flooding occurred frequently because of extreme rainstorms. Sponge city construction can effectively mitigate urban flooding and improve urban rainwater utilization. Low-impact development (LID) is regarded as a sustainable solution for urban stormwater management. In this project, a comprehensive evaluation system was developed based on environmental and economic benefits using the analytical hierarchy process (AHP) and the Storm Water Management Model (SWMM) of the United States (US) Environmental Protection Agency (EPA). The performance of four LID scenarios with the same locations but different sizes of green roof, permeable pavement, concave greenbelt, and rain garden were analyzed in the Sucheng district of Jiangsu province in China. Results illustrate that the green roof performed best in reducing runoff, while the rain garden performed worst. The LID combination scenario (1) that contained more green roof, permeable pavement, and concave greenbelt facilities, but fewer rain gardens had the better comprehensive performance on the basis of environmental and economic benefits. The combined scenario (2) (LID proportion of maximum construction area was 40%) could also be an alternative. This study provides a guide to optimize LID layouts for sponge city construction, which can also provide optimal selection for other sponge city constructions.

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Section: Determination Of Parametersmentioning

confidence: 99%

Section: Design Scenariosmentioning

confidence: 99%

Comprehensive Performance Evaluation System Based on Environmental and Economic Benefits for Optimal Allocation of LID Facilities

Bai¹,

Li²,

Zhang³

et al. 2019

Water

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“…The results of this study can be used as a reference for preparing a comprehensive disaster mitigation program. Disaster mitigation programs are not only related to post-disaster activities but also include pre-disaster activities to mitigate the impacts and risks of disasters (Mardin and Shen, 2018; Huang et al, 2018). Related to this, this publication will be very useful as basic information on disaster mitigation in Indonesia, especially in Central Sulawesi, because this area is located in a multi-prone area of disasters such as floods, earthquakes, liquefaction, tsunamis and other disasters (Tunas, 2019).…”

Section: Introductionmentioning

confidence: 99%

Impact of Landslides Induced by the 2018 Palu Earthquake on Flash Flood in Bangga River Basin, Sulawesi, Indonesia

Tunas¹,

Tanga²,

Oktavia³

2020

J. Ecol. Eng.

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High magnitude flash flood has occurred several times in some areas in Central Sulawesi Province after the 2018 Palu Earthquake, one of them is in the Bangga River, Sigi Regency, Indonesia. It has caused massive impacts such as damaging agricultural and plantation areas and submerging public facilities and infrastructure and even causing fatalities. The flood carries a variety of materials, especially high concentration sediments which are thought to originate from eroded soils due to landslides induced by a 7.5 magnitude earthquake. These materials are eroded and transported by the flow at the upstream watershed due to heavy rainfall. This study intends to investigate the potential of landslides, factors that trigger floods and increased flooding after the earthquake. This research was conducted by investigating the landslides potency based on field surveys and interpretation of the latest satellite imagery, analyzing the characteristics of rainfall as a trigger for flooding, and predicting the flood potency as the primary impact of these two factors. Rainfall-flood transformation was simulated with the HEC-HMS Model, one of the freeware semi-distributed models commonly used in hydrological analysis. The model input is the configuration of river networks generated from the National DEM (DEMNAS), hourly rainfall during floods and other watershed parameters such as land cover, soil types and river slope. The similar simulation was also carried out on the condition of the watershed before the earthquake. Based on the results of the analysis, It can be inferred that flash floods in the Bangga River are mainly caused by heavy rainfall with long duration and landslide areas in the upper watershed triggered by the 2018 Palu Earthquake with an area of approximately 10.8 km 2 . The greatest depth of rainfall as a trigger for flooding is 30.4 mm with a duration of 8 hours. The results of the study also showed that landslides in the upper watershed could increase the peak flood by 33.33% from 118.56 m 3 /s to 158.08 m 3 /s for conditions before and after the earthquake.

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“…In addition to the hydrological and hydraulic analysis, cost-benefit analysis is often used to select and implement a costeffective NBS (Huang et al, 2018;Nordman et al, 2018;Watson et al, 2016;Webber et al, 2018). The common benefits considered include prevented damage costs, omitting infrastructures, profit loss to businesses, prevented erosion damage, and prevented agricultural losses.…”

Section: Framework and Methods For Evaluation Of Nbsmentioning

confidence: 99%

“…SA is a general probability optimisation algorithm that applies thermodynamic theories in statistics. An example of a study with SA is given by Huang et al, (2018) who automatically linked SA with SWMM to maximise cost-benefit for flood mitigation and layout design. The cost-benefit analysis is computed using annual cost, which includes both annual fixed cost and annual maintenance cost.…”

Section: (2) Tools Based On Integration Between Optimization Algorithmentioning

confidence: 99%

Nature-Based Solutions for hydro-meteorological risk reduction: A state-of-the-art review of the research area

Ruangpan¹,

Vojinović²,

Sabatino³

et al. 2019

Preprint

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Abstract. Natural hazards such as severe floods, storm surges, landslides, avalanches, hail, windstorms, droughts, heat waves and forest fires occur almost daily. This situation is likely to become worse given the projected changes in climate, degradation of ecosystems, population growth and urbanisation. The new concepts such as Ecosystem-based Adaptation, Green Infrastructure and/or Nature-Based Solutions have emerged as effective means to respond to such challenges. The present paper provides a critical review of the literature and identifies current knowledge gaps and future research prospects. There has been an explosion of scientific publications on this topic with a more significant rise taking place from 2007 onwards. Hence, the review process started by sourcing 1381 articles from Scopus which were also cross-referenced with the articles sourced from Web of Science and Google Scholar. The full analysis was performed on 159 closely related articles. The analysis confirmed that numerous advancements have been achieved to date. These solutions have already proven to be valuable in providing sustainable, cost-effective, multi-purpose and flexible means for hydro-meteorological risk reduction. However, there are still many areas where further research and demonstration is needed in order to promote their upscaling and replication and to make them become mainstream solutions.

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Optimization of low impact development layout designs for megacity flood mitigation

Cited by 124 publications

References 18 publications

Comprehensive Performance Evaluation System Based on Environmental and Economic Benefits for Optimal Allocation of LID Facilities

Comprehensive Performance Evaluation System Based on Environmental and Economic Benefits for Optimal Allocation of LID Facilities

Impact of Landslides Induced by the 2018 Palu Earthquake on Flash Flood in Bangga River Basin, Sulawesi, Indonesia

Nature-Based Solutions for hydro-meteorological risk reduction: A state-of-the-art review of the research area

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