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Evaluating the Digital Resilience of Urban Water Infrastructure Retrofitted with Smart Rainwater Harvesting

World Environmental and Water Resources Congress 2022: Adaptive Planning and Design in an Age of Risk and Uncertainty - Selected Papers from the World Environmental and Water Resources Congress 2022, Page: 778-786
2022
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Conference Paper Description

Smart rainwater harvesting (RWH) systems can automatically release stormwater prior to rainfall events (based on weather forecasts) to increase detention capacity on a household level. However, the impacts and benefits of widespread implementation of smart RWHs are often unknown. This work aims to investigate the effect of a large-scale implementation of smart RWH systems on urban drainage resilience and to determine the influences of digital parameters (e.g., accuracy of weather forecasts or reliability of data communication). As a case study, an Alpine municipality (2,500 inhabitants) is hypothetically retrofitted with smart rain barrels. The reference state (without any extensions) has a resilience index of 0.626 (0 and 1.0 represent the complete failure and perfect system, respectively), which could be increased by up to 0.701 through smart RWH systems depending on the degree of implementation. However, sufficient consideration of digital uncertainties was of greatest importance as such uncertainties could reduce/eliminate the gained performance improvements.

Bibliographic Details

Martin Oberascher; Aun Dastgir; Sina Hesarkazzazi; Mohsen Hajibabaei; Wolfgang Rauch; Robert Sitzenfrei; Jiada Li

American Society of Civil Engineers (ASCE)

Environmental Science

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