Selection of the Optimal Design Rainfall Return Period of Urban Drainage Systems

Fortunato, A.; Oliveri, E.; Mazzola, Mario Rosario

doi:10.1016/j.proeng.2014.11.502

Cited by 17 publications

(14 citation statements)

References 4 publications

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“…Design of rainfall hyetograph refers to the distribution of total rainfall in the designed phase, and it is the boundary condition for delay of simulation based on the hydraulic model; it is also the key module to calculate the designed flow of the drainage pipe network [25].…”

Section: Designed Rainfallmentioning

confidence: 99%

Study on Storm-Water Management of Grassed Swales and Permeable Pavement Based on SWMM

Xie

et al. 2017

Water

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Grassed swales and permeable pavement that have greater permeable underlying surface relative to hard-pressing surface can cooperate with the city pipe network on participating in urban storm flood regulation. This paper took Nanshan village in Jiangsu Province as an example, the storm-water management model (SWMM) was used to conceptualize the study area reasonably, and the low-impact development (LID) model and the traditional development model were established in the region. Based on the storm-intensity equation, the simulation scene employed the Chicago hydrograph model to synthesize different rainfall scenes with different rainfall repetition periods, and then contrasted the storm-flood-management effect of the two models under the condition of using LID facilities. The results showed that when the rainfall repetition period ranged from 0.33a to 10a (a refers to the rainfall repetition period), the reduction rate of total runoff in the research area that adopted LID ranged from 100% to 27.5%, while the reduction rate of peak flow ranged from 100% to 15.9%, and when the values of unit area were the same, the combined system (permeable pavement + grassed swales) worked more efficiently than the sum of the individuals in the reduction of total runoff and peak flow throughout. This research can provide technical support and theoretical basis for urban LID design.

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Section: Designed Rainfallmentioning

confidence: 99%

Study on Storm-Water Management of Grassed Swales and Permeable Pavement Based on SWMM

Xie

et al. 2017

Water

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“…The hyetograph resembles the one used by the Chicago method (Keifer and Chu 1957) (see Figure 14). Despite this type of rainfall profile tends to overestimate peak flows (Marsalek and Watt 1984;Alfieri et al 2008), here it is used because the intention is to design a robust network able to cope with severe events (Fortunato et al 2014).…”

Section: Design Without Uncertainty (Deterministic Approach)mentioning

confidence: 99%

Advancing Robust Multi-Objective Optimisation Applied to Complex Model-Based Water-Related Problems

Marquez-Calvo¹

2020

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This research was funded by the National Council of Science and Technology of Mexico (CONACYT). Besides, it was conducted under the auspices of the SENSE Research School for SocioEconomic and Natural Sciences of the Environment. Cover photography by Gabriel Saldana-originally posted to Flickr as IMG_5031, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=10791937, modified by adding the 3D graph.

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“…A plausible assumption may be that the equivalent annual costs EAC (capital and operational costs) corresponding to climate adaptation to the T ‐year level approximately follows a log‐linear relation, as for example the data applied by Fortunato et al . []. Thus

E A C (T) = c \ln T + d

…”

Section: Optimal Adaptation Level In Current Climatementioning

confidence: 99%

“…Fortunato et al . [] presented a procedure for obtaining the optimal design rainfall return period for urban drainage systems by minimizing the sum of EAD and the Equivalent Annual Costs ( EAC ) defined as the sum of annual capital and operational costs. The analysis, however, did not take climate development into account.…”

Section: Introductionmentioning

confidence: 99%

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Optimal adaptation to extreme rainfalls in current and future climate

Rosbjerg

2017

Water Resources Research

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More intense and frequent rainfalls have increased the number of urban flooding events in recent years, prompting adaptation efforts. Economic optimization is considered an efficient tool to decide on the design level for adaptation. The costs associated with a flooding to the T‐year level and the annual capital and operational costs of adapting to this level are described with log‐linear relations. The total flooding costs are developed as the expected annual damage of flooding above the T‐year level plus the annual capital and operational costs for ensuring no flooding below the T‐year level. The value of the return period T that corresponds to the minimum of the sum of these costs will then be the optimal adaptation level. The change in climate, however, is expected to continue in the next century, which calls for expansion of the above model. The change can be expressed in terms of a climate factor (the ratio between the future and the current design level) which is assumed to increase in time. This implies increasing costs of flooding in the future for many places in the world. The optimal adaptation level is found for immediate as well as for delayed adaptation. In these cases, the optimum is determined by considering the net present value of the incurred costs during a sufficiently long time‐span. Immediate as well as delayed adaptation is considered.

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Selection of the Optimal Design Rainfall Return Period of Urban Drainage Systems

Cited by 17 publications

References 4 publications

Study on Storm-Water Management of Grassed Swales and Permeable Pavement Based on SWMM

Study on Storm-Water Management of Grassed Swales and Permeable Pavement Based on SWMM

Advancing Robust Multi-Objective Optimisation Applied to Complex Model-Based Water-Related Problems

Optimal adaptation to extreme rainfalls in current and future climate

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