Low Impact Development Design—Integrating Suitability Analysis and Site Planning for Reduction of Post-Development Stormwater QuantityReportar como inadecuado


Low Impact Development Design—Integrating Suitability Analysis and Site Planning for Reduction of Post-Development Stormwater Quantity


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1

School of Planning, College of Design, Architecture, Art, and Planning, University of Cincinnati, Cincinnati, OH 45221-0016, USA

2

Sustainable Environments Branch, National Risk Management Research Laboratory, Office of Research and Development, United States Environmental Protection Agency, 26 W. Martin Luther King Drive, Cincinnati, OH 45268, USA

3

Department of Civil and Environmental Engineering, College of Engineering, University of Cincinnati, Cincinnati, OH 45221-0071, USA

4

North Appalachian Experimental Watershed, Agricultural Research Service, United States Department of Agriculture, Coshocton, OH 43812, USA





*

Author to whom correspondence should be addressed.



Abstract A land-suitability analysis LSA was integrated with open-space conservation principles, based on watershed physiographic and soil characteristics, to derive a low-impact development LID residential plan for a three hectare site in Coshocton OH, USA. The curve number method was used to estimate total runoff depths expected from different frequency storms for: i the pre-development condition, ii a conventional design, iii LID design based on the LSA of same building size; and iv LID design based on the LSA with reduced building footprints. Post-development runoff depths for the conventional design increased by 55 percent over those for the pre-development condition. Runoff depth for the same building size LSA-LID design was only 26 percent greater than that for the pre-development condition, and 17% for the design with reduced building sizes. Results suggest that prudent use of LSA may improve prospects and functionality of low-impact development, reduce stormwater flooding volumes and, hence, lower site-development costs. View Full-Text

Keywords: soil survey; runoff; soil hydrologic group; urbanization; suitability analysis soil survey; runoff; soil hydrologic group; urbanization; suitability analysis





Autor: Xinhao Wang 1,* , William Shuster 2, Chandrima Pal 1, Steven Buchberger 3, James Bonta 4 and Kiran Avadhanula 1

Fuente: http://mdpi.com/



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