Efficiency of blue-green stormwater retrofits for flood mitigation – Conclusions drawn from a case study in Malmö, Sweden

Haghighatafshar, Salar; Nordlöf, Beatrice; Roldin, Maria; Gustafsson, Lars-Göran; Jansen, Jes la Cour; Jönsson, Karin

doi:10.1016/j.jenvman.2017.11.018

Cited by 64 publications

(32 citation statements)

References 16 publications

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“…Interdependence between infrastructure systems has become a major research area in the last 30 years, and by exploiting the capacity between systems we could increase the potential for cascading failures through the system; amplifying small disruptions into large disruptions (Balica, Douben, & Wright, ; Beevers, Walker, & Strathie, ; da Silva, Kernaghan, & Luque, ; Eusgeld, Nan, & Dietz, ; Ouyang & Dueñas‐Osorio, ; Peerenboom & Fisher, ; Pregnolato et al, ). For example, hydrological model simulations in Malmö, Sweden, have also shown that the efficiency of a BGI system in mitigating flooding can be strongly limited if implemented in an area with a hydraulically overloaded piped sewer network (Haghighatafshar et al, ). Progressing from these types of analyses, interoperability offers a way to practically use information on infrastructure vulnerabilities to develop integrated design solutions for flood management that limit the risk of cascading failures.…”

Section: Opportunities Through Interoperabilitymentioning

confidence: 99%

Interoperability: A conceptual framework to bridge the gap between multifunctional and multisystem urban flood management

Vercruysse

Dawson

Wright

2019

J Flood Risk Management

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Urban flood management is increasingly expected to be multifunctional to integrate with the existing functioning of cities. Locally, this led to the development of sustainable urban water drainage designs, while at larger scales, blue‐green or water‐sensitive cities are considered as examples for how cities should function. Upscaling local designs to city‐scale flood resilience is not straightforward, however, due to the complexity of physical infrastructure and socio‐economic interactions within urban systems and requires “system‐of‐systems” thinking. To this end, we introduce the concept “interoperability” to guide transition from local multifunctionality to city‐scale multisystem flood management, through actively managing connections between infrastructure systems to convey, divert, and store flood water. While flood management is already based on these connections, interoperability is about explicitly emphasising them to explore and create opportunities to facilitate the integration of systems for flood management. The main research need arising from this conceptualisation is to determine how spatial data on infrastructure, environment, and social characteristics in urban areas can serve as a basis to identify opportunities and barriers for interoperability. By introducing interoperability and the research needs arising from it, a framework is created to facilitate and encourage practical thinking and discussion about system integration in urban flood management.

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Section: Opportunities Through Interoperabilitymentioning

confidence: 99%

Interoperability: A conceptual framework to bridge the gap between multifunctional and multisystem urban flood management

Vercruysse

Dawson

Wright

2019

J Flood Risk Management

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“…Background picture: GSD-Orthophoto, courtesy of The Swedish Mapping, Cadastral and Land Registration Authority, ©Lantmäteriet (2015). [This figure-slightly modified-is adopted from Haghighatafshar et al [11] with permission].…”

Section: The Study Area-augustenborgmentioning

confidence: 99%

“…The information regarding the characteristics of the SCMs (S i in f , S i f b , and A i SCM ) as well as their corresponding mini catchment (DCI A i ) is collected from the hydrodynamic model of the area, which was developed by Haghighatafshar et al [11], the on-site measurements, and the GIS maps. These parameters are relatively easy to estimate and can be measured on site.…”

Section: Remarks On the Schematized Augustenborgmentioning

confidence: 99%

“…SuDS in urban areas can be implemented at three different levels, i.e., microscale, mesoscale, and macroscale, which was proposed by Haghighatafshar et al [11]. A graphical illustration of these three levels is presented in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

“…While some potentially suitable measures were tentatively suggested at each level from upstream to downstream, the hydraulic and hydrologic performance of the suggested SCMs and of the entire system were not addressed. With the more intense rainfall events that have been experienced in many parts of the world as well as an elevated densification of our cities, the interest in SCMs especially in already built areas has grown [6,11].…”

Section: Introductionmentioning

confidence: 99%

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Conceptualization and Schematization of Mesoscale Sustainable Drainage Systems: A Full-Scale Study

Haghighatafshar

Jansen

Aspegren

et al. 2018

Water

Self Cite

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Sustainable Drainage Systems (SuDS) can be considered the joint product of water engineering and urban planning and design since these systems must comply with hydraulic, hydrologic, and social-ecological functions. To enhance this joint collaboration, a conceptual model of mesoscale SuDS is introduced based on the observed rainfall-runoff responses from two catchments with SuDS and a pipe-bound catchment. The model shows that in contrast to pipe systems, SuDS disaggregates the catchment into a group of discrete mini catchments that have no instant connection to the outlet. These mini catchments start to connect to each other (and perhaps to the outlet) as the rainfall depth increases. It is shown that the sequence of stormwater control measures (SCMs as individual components of SuDS) affects the system's overall performance depending on the volumetric magnitude of the rainfall. The concept is useful in the design and implementation of mesoscale SuDS retrofits, which include several SCMs with different retention and detention capacities within a system.

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Large‐scale physical facility and experimental dataset for the validation of urban drainage models

Sañudo,

Cea,

Puertas

et al. 2024

Hydrological Processes

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Numerical models are currently the main tool used to simulate the effects of urban flooding. The validation of these models requires thorough and accurate observed data in order to test their performance. The current study presents a series of laboratory experiments in a large‐scale urban drainage physical facility of approximately 100 m2 that includes roofs, streets, inlets, manholes and sewers. The facility is equipped with a rainfall simulator as well as a surface runoff and pipe inflows generators. The experiments were divided in two sets. In Set 1 the surface runoff was generated exclusively by the rainfall input, while in Set 2 the rainfall simulator was used in combination with the runoff generators. In all the tests the water discharge was measured at points on the inlets, roofs, and outfall. The water depth at different locations of the facility was also measured. The experimental tests were replicated numerically using the urban drainage model Iber‐SWMM. Experimental results show that, even in a relatively small catchment the peaks in the hydrographs generated at each element of the facility during intermittent rainfalls are significantly attenuated at the catchment outlet. The agreement between the experimental and numerical results show that there are some differences in the hydrographs generated at each element, but that these differences compensate each other and disappear at the outfall. The results generated provide the research community with a thorough and high‐resolution dataset obtained under controlled laboratory conditions in a large‐scale urban drainage facility, something which has not previously been available.

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Efficiency of blue-green stormwater retrofits for flood mitigation – Conclusions drawn from a case study in Malmö, Sweden

Cited by 64 publications

References 16 publications

Interoperability: A conceptual framework to bridge the gap between multifunctional and multisystem urban flood management

Interoperability: A conceptual framework to bridge the gap between multifunctional and multisystem urban flood management

Conceptualization and Schematization of Mesoscale Sustainable Drainage Systems: A Full-Scale Study

Large‐scale physical facility and experimental dataset for the validation of urban drainage models

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