Flood Risk Assessment and Emergency Planning—A Short Review

Alves, Rita de Cássia Loiola; Branco, Jacqueline Castelo; Baptista, J. Santos

doi:10.1007/978-3-031-12547-8_49

Cited by 3 publications

(2 citation statements)

References 43 publications

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“…They further explored protective measures for the stormwater drainage system. In addition, Low Impact Development (LID) measures are considered to be more sustainable solutions for urban stormwater management due to their applicability in urban environments 36 . LID measures, such as rain gardens, permeable pavements, green roofs, and trees group, effectively store rainfall and provide longer retention times, resulting in delayed response and improved drainage efficiency of the stormwater drainage system 37 – 39 .…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the buffering effects of urban trees group in dike-break floods

Liu,

Zhang,

et al. 2023

Sci Rep

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The process of dike-break flood propagation in typical urban street is highly complex. The presence of buildings and trees groups in urban street profoundly alters the flood dynamics, impacting the drainage capacity of the area. In this study, a generalized sink model representing a typical urban street was established, including trees groups, buildings, sidewalks, and stormwater drainage systems. The study measured the fluctuation of water levels within the street block and the pressure variation in the pressurized stormwater drainage network during the dike-break flood propagation. Furthermore, it conducted a comparative analysis to assess the influence of different arrangements of trees groups on the maximum water depth in buildings and the discharge capacity of the pressurized stormwater drainage network. Dike-break floods give rise to large-scale water leaps and the formation of thin layer water sheets near the buildings under the influence of buildings, water tank sidewalls, and tree groups. The water leap zones exhibit lateral migration and superposition on the sidewalks during the flood propagation, gradually dissipating and disappearing in the longitudinal direction of the street. In the presence of tree groups, the water levels significantly decrease in buildings and downstream street, while the discharge capacity of the pressurized stormwater drainage network shows a slight improvement as the road’s flood-carrying capacity increases. The pressure in the main pipes fluctuates due to the switching of the grate inlet drainage mode and the hydraulic transition process in the branch pipes. The research findings not only provide valuable validation data for numerical simulations but also offer theoretical guidance for urban flood management and landscape design.

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Section: Introductionmentioning

confidence: 99%

Experimental study on the buffering effects of urban trees group in dike-break floods

Liu,

Zhang,

et al. 2023

Sci Rep

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mentioning

confidence: 99%

Experimental Study on the Buffering Effects of Urban Trees Group in Dike-Break Floods

Zhang

Zhao

et al. 2023

Preprint

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The process of dike-break flood propagation in typical urban street blocks is highly complex. The presence of buildings and trees groups in urban street blocks profoundly alters the flood dynamics, impacting the drainage capacity of the area. In this study, a generalized sink model representing a typical urban street block was established, including trees groups, buildings, sidewalks, and stormwater drainage systems. The study measured the fluctuation of water levels within the street block and the pressure variation in the pressurized stormwater drainage network during the dike-break flood propagation. Furthermore, it conducted a comparative analysis to assess the influence of different arrangements of trees groups on the maximum water depth in buildings and the discharge capacity of the pressurized stormwater drainage network. Dike-break floods give rise to large-scale water leaps and the formation of thin layer water sheets near the buildings under the influence of buildings, water tank sidewalls, and tree groups. The water leap zones exhibit lateral migration and superposition on the sidewalks during the flood propagation, gradually dissipating and disappearing in the longitudinal direction of the street block. In the presence of tree groups, the water levels significantly decrease in buildings and downstream street blocks, while the discharge capacity of the pressurized stormwater drainage network shows a slight improvement as the road's flood-carrying capacity increases. The pressure in the main pipes fluctuates due to the switching of the grate inlet drainage mode and the hydraulic transition process in the branch pipes. The research findings not only provide valuable validation data for numerical simulations but also offer theoretical guidance for urban flood management and landscape design.

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Analysis of Risk Management in Territorial Planning in Areas Susceptible to Slow Flooding. Case Study Rural Settlement “El Playón” Bajo Sinú (Córdoba, Colombia).

OSSA¹,

FLÓREZYEPES²,

GARCÍA³

2023

Int J Conserv Sci

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As a result of this research, it is proposed the incorporation of risk management as an environmental determinant in flood areas of the lower Sinú River basin for territorial planning. This was carried out through the analysis of the total flood risk, determining the threat and vulnerability of the target community, likewise, the risk drivers were identified under approaches of the integral analysis of holistic and systemic risk using a PAR model through which it is established the underlying reason, the dynamic relationship of the environment, the unsafe conditions of geography, and the socio-economic characterization of the community. In this way, it was not only obtained the analysis of the areas affected by the floods by identifying the causes and establishing a level of risk tolerance, but also the risk factors with their effects in the study area. This highlighted the importance of developing immediate and priority activities in the study area

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Flood Risk Assessment and Emergency Planning—A Short Review

Cited by 3 publications

References 43 publications

Experimental study on the buffering effects of urban trees group in dike-break floods

Experimental study on the buffering effects of urban trees group in dike-break floods

Experimental Study on the Buffering Effects of Urban Trees Group in Dike-Break Floods

Analysis of Risk Management in Territorial Planning in Areas Susceptible to Slow Flooding. Case Study Rural Settlement “El Playón” Bajo Sinú (Córdoba, Colombia).

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