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

Sustainability

Xinhao Wang⁴  William Shuster¹  Chandrima Pal⁴  Steven Buchberger²  James Bonta³ 

[1] 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; E-Mail:;Department of Civil and Environmental Engineering, College of Engineering, University of Cincinnati, Cincinnati, OH 45221-0071, USA; E-Mail:;North Appalachian Experimental Watershed, Agricultural Research Service, United States Department of Agriculture, Coshocton, OH 43812, USA; E-Mail:;School of Planning, College of Design, Architecture, Art, and Planning, University of Cincinnati, Cincinnati, OH 45221-0016, USA; E-Mails:

关键词: soil survey;    runoff;    soil hydrologic group;    urbanization;    suitability analysis;   

DOI  :  10.3390/su2082467

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.