Sustainable urban stormwater management in the tropics: an evaluation of Singapore's ABC Waters Program

Lim, H.S., and Lu, X.X. (2016) Sustainable urban stormwater management in the tropics: an evaluation of Singapore's ABC Waters Program. Journal of Hydrology, 538. pp. 842-862.

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The Active Beautiful Clean (ABC) Waters Program was implemented in 2006 as part of Singapore's stormwater management strategy and reflects the country's move towards Water Sensitive Urbanism through the adoption of Low-Impact Development (LID) ideology and practices. It is the first holistic and comprehensive LID program in the tropics and holds promise for extension to other tropical cities. This paper presents a comprehensive summary of the goals, LID practices (ABC design features) and design considerations as well as results of several monitored sites, including a constructed wetland, two rain gardens, green roofs and three canal restoration projects. We evaluate the ABC Waters Program based on these initial results and consider the challenges, issues and the research needs for it to meet its hydrological and water quality remediation goals. So far, the ABC design features evaluated perform well in removing particulates. Performance in nutrient removal is poor. With over 60 projects completed within 10 years, post-project monitoring and evaluation is necessary and complements on-going laboratory and modelling research projects conducted by local academic institutions.

Item ID: 44164
Item Type: Article (Research - C1)
ISSN: 0022-1694
Keywords: urban stormwater management, tropics, Singapore, ABC waters program
Projects and Grants: National University of Singapore PUB project R-706-000-020-490
Date Deposited: 12 Jul 2016 02:22
FoR Codes: 41 ENVIRONMENTAL SCIENCES > 4105 Pollution and contamination > 410504 Surface water quality processes and contaminated sediment assessment @ 20%
41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410405 Environmental rehabilitation and restoration @ 80%
SEO Codes: 96 ENVIRONMENT > 9611 Physical and Chemical Conditions of Water > 961101 Physical and Chemical Conditions of Water for Urban and Industrial Use @ 50%
96 ENVIRONMENT > 9612 Rehabilitation of Degraded Environments > 961208 Rehabilitation of Degraded Urban and Industrial Environments @ 50%
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