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Sustainability 2018, 10(12), 4683; https://doi.org/10.3390/su10124683

Coupling Field Observations and Geographical Information System (GIS)-Based Analysis for Improved Sustainable Urban Drainage Systems (SUDS) Performance

1
Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
2
SINTEF Building and Infrastructure, 7465 Trondheim, Norway
*
Author to whom correspondence should be addressed.
Received: 31 October 2018 / Revised: 4 December 2018 / Accepted: 5 December 2018 / Published: 9 December 2018
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Abstract

Urbanization and increased precipitation volumes and intensities due to climate change add pressure to the urban drainage system, resulting in increased flooding frequencies of urban areas and deteriorating water quality in receiving waters. Infiltration practices and the use of blue green infrastructure, also called Sustainable Urban Drainage Systems (SUDS), can limit, and, in some cases, reverse the effects of urbanization. However, adequate infiltration capacity is an essential parameter for the successful implementation. In this paper, a Geographical Information System (GIS)-based hydrology analysis for SUDS placements is coupled with field measurements using Modified Phillip Dunne infiltrometer tests. The case study area is the expansion of the campus at the Norwegian University of Science and Technology (NTNU) over the next decade. Infiltration in urban soils can be highly heterogenous over short distances. When comparing measured infiltration rates with physical characteristics of the soils showed that the physical characteristics are not a good indication of the infiltration potential in urban soils with a large degree of compaction. The results showed that measuring the infiltration potential combined with flow path analysis can greatly enhance the benefits of blue green infrastructure, with an up to 70% difference in area required for SUDS solutions for managing 90% of the annual precipitation. View Full-Text
Keywords: GIS; drainage lines; SUDS; infiltration; field measurements; green campus GIS; drainage lines; SUDS; infiltration; field measurements; green campus
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Muthanna, T.M.; Sivertsen, E.; Kliewer, D.; Jotta, L. Coupling Field Observations and Geographical Information System (GIS)-Based Analysis for Improved Sustainable Urban Drainage Systems (SUDS) Performance. Sustainability 2018, 10, 4683.

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