A global analysis approach for investigating structural resilience in urban drainage systems

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dc.contributor.authorMugume, Seith N.
dc.contributor.authorGomez, Diego E.
dc.contributor.authorFu, Guangtao
dc.contributor.authorFarmani, Raziyeh
dc.contributor.authorButler, David
dc.date.accessioned2022-12-04T08:14:56Z
dc.date.available2022-12-04T08:14:56Z
dc.date.issued2015
dc.description.abstractBuilding resilience in urban drainage systems requires consideration of a wide range of threats that contribute to urban flooding. Existing hydraulic reliability based approaches have focused on quantifying functional failure caused by extreme rainfall or increase in dry weather flows that lead to hydraulic overloading of the system. Such approaches however, do not fully explore the full system failure scenario space due to exclusion of crucial threats such as equipment malfunction, pipe collapse and blockage that can also lead to urban flooding. In this research, a new analytical approach based on global resilience analysis is investigated and applied to systematically evaluate the performance of an urban drainage system when subjected to a wide range of structural failure scenarios resulting from random cumulative link failure. Link failure envelopes, which represent the resulting loss of system functionality (impacts) are determined by computing the upper and lower limits of the simulation results for total flood volume (failure magnitude) and average flood duration (failure duration) at each link failure level. A new resilience index that combines the failure magnitude and duration into a single metric is applied to quantify system residual functionality at each considered link failure level. With this approach, resilience has been tested and characterized for an existing urban drainage system in Kampala city, Uganda. In addition, the effectiveness of potential adaptation strategies in enhancing its resilience to cumulative link failure has been tested.en_US
dc.identifier.citationMugume, S. N., Gomez, D. E., Fu, G., Farmani, R., & Butler, D. (2015). A global analysis approach for investigating structural resilience in urban drainage systems. Water research, 81, 15-26.10.1016/j.watres.2015.05.030en_US
dc.identifier.other10.1016/j.watres.2015.05.030
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/5734
dc.language.isoenen_US
dc.publisherWater researchen_US
dc.subjectflexibilityen_US
dc.subjectredundancyen_US
dc.subjectresilienceen_US
dc.subjectstructural failureen_US
dc.subjecturban water managementen_US
dc.titleA global analysis approach for investigating structural resilience in urban drainage systemsen_US
dc.typeArticleen_US
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