Quantifying the efficacy of Low Impact Developments (LIDs) for flood reduction in micro-urban watersheds incorporating climate change

Suresh, Amrutha; Pekkat, Sreeja; Subbiah, Senthilmurugan

doi:10.1016/j.scs.2023.104601

Cited by 20 publications

(7 citation statements)

References 52 publications

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“…The effectiveness of using Low Impact Development technologies in reducing urban runoff is underlined by several researchers [5], [7], [8]. Optimum location and combination of various techniques is also pointed as an effective method to achieve maximum efficiency.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Several studies reported that the use of permeable pavements create considerable runoff reduction by 50% to 90% depending on the characteristics [5], [18], [19], [20]. In addition to increasing infiltration and storage, permeable pavements create connected networks if employed for footpaths and walkways.…”

Section: Lid Applicationsmentioning

confidence: 99%

“…In addition, the small temporal scale also pauses a challenge to researchers in this field. Several researchers noted the need for a paradigm shift in conventional engineering solutions to urban pluvial floods [4], [5]. Grey infrastructure, which is often planned for collection and conveyance of the rainwater in a city is often insufficient and inefficient to deal with emerging challenges of urban flooding.…”

Section: Introductionmentioning

confidence: 99%

“…In runoff control, LID technologies are used to increase infiltration, temporary storage, delayed discharge, and long-term rainwater storage [5]. Due to its localized approach and micro-scale, LID is more convenient and less cost-intensive than conventional engineering solutions.…”

Section: Introductionmentioning

confidence: 99%

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Low Impact Development-An effective tool towards urban flood resilience

Ambily,

Reddy,

Ganesh

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The uncertainties created by climate change and the pressure of urbanisation create unparalleled challenges to urban disaster management. Conventional solutions to urban infrastructure management are no longer sufficient to combat emerging challenges. Among all the disasters, floods require special attention because of the destruction it is causing to the economy and their frequency of occurrence. Managing urban pluvial floods is causing a real challenge due to the uncertainties about the source and direction of flow and the insufficiency of grey infrastructure. Low Impact Development (LID) technologies are recognised by many researchers as an effective method to support the existing grey infrastructure. In this paper, the authors analyse and understand the effectiveness of LID techniques in creating urban flood resilience. A frequently flooded region in the south-Indian, coastal city of Kochi is selected as the study region. The results indicate that, among the three experimented options of porous pavements, bio-retention cells and rain barrels, permeable pavements created the highest reduction in the run-off if used in isolation. However, a combination of various technologies is found to be more efficient than localised attempts in a micro-scale. The study also found that the efficacy of LID technologies depends on the local characteristics, including topography, soil type and spatial availability. The research can be further carried out using more LID technologies and linking it with the existing drainage network.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Lid Applicationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Low Impact Development-An effective tool towards urban flood resilience

Ambily,

Reddy,

Ganesh

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…Tansar et al [17] explored the effect of LID facilities on flood control at the spatial scale by placing LID facilities in the upper, middle, and lower reaches of a region under different rainfall scenarios. Suresh et al [18] analyzed the effect of LID facilities on the control of runoff depth and peak runoff in micro-urban watersheds to quantify the extent of their reduction in flooding in the context of climate change. Sin et al [19] proposed a curve number approach to evaluate flood mitigation using storage and infiltration facilities.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Flood Prevention and Control at LID Facilities with Runoff and Flooding as Control Objectives Based on InfoWorks ICM

Cheng,

Wang,

Chen

et al. 2024

Water

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Climate change and urbanization have led to an increase in the amount of water flowing into traditional drainage systems, which results in frequent urban flooding. Low–Impact Development (LID) facilities, with their distributed feature, are one of the important means to mitigate flooding and have been widely used. In this paper, based on integrated catchment management (ICM), we compare the abatement of runoff, flooding, and ponding under two durations of rainfall and eight different return periods with runoff as the control objective (RACO) and flooding as the control objective (FACO) for the deployment of LID facilities. The waterlogged area of FACO is higher by a range of 92.462 m2 to 24,124.39 m2 compared to RACO. Both percentage reduction of overflow volume and runoff volume tend to decrease gradually with the increase in the return period. For the percentage reduction of runoff volume per unit area, sometimes RACO is greater than FACO, and sometimes vice versa, while for the percentage reduction of overflow volume per unit area, the range where FACO exceeds RACO is between 0.29 to 10.95 (%/ha). The cost of FACO has decreased by 4.94% to 46.20% compared to RACO. This shows that FACO’s LID deployment method can fully utilize the capacity of LID facilities to mitigate inundation, reducing the cost of LID facilities to a certain extent.

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