Planning & Management

Oral

395338 - IDEAS for GI – Interactive DEsign and Analysis Software for Green Infrastructure

Thursday, June 7
8:30 AM - 10:00 AM
Location: Greenway GH
Co-Authors: Lawrence Band, Charlottesville, VA – University of Virginia; Neely Law, Baltimore, MD – Center for Watershed Protection; Lorne Leonard, State College, PA – The Pennsylvania State University; Arthur Schmidt, Urbana. Illinois – University of Illinois at Urbana Champaign; Barbara Minsker, Dallas, TX – Southern Methodist University

Green Infrastructure (GI) has been widely proposed and used as a sustainable stormwater management strategy in many urbanized environments. Despite wide acknowledgment of GI benefits in scientific communities, there is a lack of modeling and planning tools that allow practitioners to interactively identify and evaluate the best locations and types of GI practices using distributed hydrologic models. An online interactive tool is needed that quantifies the watershed-scale effects of multiple GI practices (e.g. trees and rain gardens) designed at their scale of implementation. To address such a need, we have developed an online Cloud-based interactive tool—called IDEAS for GI— that aids planners and researchers in providing quantitative assessments of GI designs. The tool uses Google™ satellite view, Google™ street view, empirical models, and numerical urban hydrology models (SWMM and RHESSYS) to provide estimations, including uncertainty bounds, of stormwater pollutant uptake, stormwater peak flow, and stormwater volume reduction using GI. The tool also allows users to select the locations of individual trees or rain gardens through realistic representation of the landscape in Google™ street view, facilitating the incorporation of participatory design. The tool has been calibrated for two small (< 1.5 km2) urbanized watersheds in Baltimore metropolitan area, and provides a framework for use in any watershed with existing hydrologic models. By executing the tool for several design scenarios, we demonstrated that local-scale details, such as specific location and area of GI implementation, as well as the area of stormwater capture, play an important role in the watershed-scale effectiveness of GI. The tool was presented in a workshop to several stormwater engineers and municipalities in the Baltimore region, whose feedback provided next steps for further development of the tool.

Bardia Heidari Haratmeh, MS

PhD candidate
University of Illinois at Urbana Champaign

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395338 - IDEAS for GI – Interactive DEsign and Analysis Software for Green Infrastructure



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