Suitability Zoning for Sustainable Drainage Systems (SuDSs): Application in a Basin in Southern Brazil

Failache, Moisés Furtado; Pons, Nívea Adriana Dias; Pejon, Osni José; Zuquette, Lázaro Valentin

doi:10.3390/su14052577

Cited by 1 publication

(1 citation statement)

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“…Define SUDS as the interdisciplinary cooperation of water management, urban design, and landscape architecture, which considers all parts of the urban water cycle, combines water management function and urban design approaches, and facilitates ecological, economic, social, and cultural sustainability synergies [18]. According to "SUDS bring sensitivity to water into urban design," The words 'water sensitive' define a new paradigm in integrated urban water cycle management that combines the various disciplines of engineering and environmental sciences associated with providing water services, including the protection of ecosystem environments in urban areas.…”

Section: Elaboration Of the Literature Reviewmentioning

confidence: 99%

Evaluating Flood Hazard Mitigation through Sustainable Urban Drainage Systems in Bor, Jonglei State, South Sudan

Deng,

Nursetiawan,

Ikhsan

2024

JCHE

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In response to the escalating pressures of urbanization and population growth on the ecosystems and flood risks in Bor County, Jonglei State, South Sudan, this study proposes the implementation of Sustainable Urban Drainage Systems (SUDS) as a resilience-building measure. Through the design of open drainage channels featuring non-uniform flow, inclusive of main and sub-channels alongside infiltration wells, the research aims at mitigating flooding, enhancing water quality, and fostering sustainable development within the region. The necessity for managing substantial runoff volumes has been identified, with a decade of rainfall data employed to accommodate annual variability. The evaluation of SUDS techniques to mitigate flooding entails a customized design approach, integrating cost estimation with flood mitigation strategies and the assessment of short-and long-term co-benefits. Hydrological analysis of ten years of rainfall data facilitated the sizing of channels for storm events ranging from 2 to 5 years, with precipitation intensities between 73.82 and 93.08 mm/day, resulting in the planning of open trapezoidal channels with dimensions to support 5 m 3 /s flows. Moreover, infiltration wells, with diameters of 2-3 meters and depths of 3-5 meters, have demonstrated potential in reducing runoff volumes by up to 70% in a 0.5-hectare modelled area. The incorporation of drop structures aims to control slopes ranging from 6-15% in channels, thereby preventing erosion for flows up to 20 m 3 /s. The adaptability of SUDS approaches, commonly applied in developed nations, to the tropical environment of Bor is scrutinized, highlighting the necessity for localized adaptation due to data limitations and modelling simplifications. The potential barriers posed by capital costs underscore the importance of a life cycle analysis. The success of SUDS implementation in Bor County is contingent upon community engagement, ensuring acceptance and ownership. It is recommended that low-cost, simplistic pilot projects, focusing initially on rain gardens and permeable pavements, precede large-scale implementation. Through strategic planning, SUDS hold the potential to enhance climate resilience in the expanding community of Bor County. An integrated technical analysis provides actionable solutions for flood mitigation, advocating for further monitoring and community-driven initiatives to transition SUDS from concept to reality.

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Section: Elaboration Of the Literature Reviewmentioning

confidence: 99%