Developing a Database for Measuring the Performance of Urban Design Alternatives 2011 TRB Annual Conference January 25, 2011 Washington, DC

Landscape Performance Series Slide 2 Landscape Architecture Foundation 501(c)(3) nonprofit based in Washington, DC Founded in 1966 to preserve, improve and enhance the environment Increase our collective capacity through: Research – Invested nearly $600,000 since 1986 Scholarship – Awarded over $775,000 to 450 students since 1986

FIT Workshop 11/16/10, Slide 3 Landscape Performance

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Landscape Performance Series Slide 5 A Case Study Comparison Reduces water use by 30% compared to a building with standard code-compliant fixtures Uses 51,300 kBtu/ft 2 of energy annually, a 39% reduction from base case Reduces carbon emissions by 19 lbs CO 2 /ft 2, or 50% by purchasing renewable energy. Provides daylight for 75% of regularly occupied spaces and views for 90% of occupied work areas

Landscape Performance Series Slide 6 A Case Study Comparison Stormwater planters 10 new trees Native and adapted plants Permeable pavers 5 new seating areas Local stone FSC-certified wood

Landscape Performance Series Slide 7 A Case Study Comparison Captures and cleans stormwater runoff Reduces the urban heat island effect Sequesters carbon Reduces potable water use Cleans the air Increases social value of space

Landscape Performance Series Slide 8 From Features to Claims to Benefits Reduces stormwater runoff Captures and infiltrates 30% of all rain falling on the site. Sequesters carbon Traps 1,500 lbs of carbon annually in tree biomass. Increases social value of space Increased café patronage by 30% on weekdays and 50% on weekends.

Landscape Performance Series Slide 9 Landscape Performance Series Case Study Briefs Benefits Toolkit Factoid Library Scholarly Works An online interactive set of resources that provides tools and information to quantify benefits, show value, and make the case for sustainable landscape solutions.

Landscape Performance Series Slide 10 Landscape Performance Series a collection of resources designed to make “landscape performance” as well understood as “building performance” NOT a rating system focused on built, performing projects generating demand for sustainable landscape solutions a resource that will grow over time and with your participation Not just for Landscape Architects

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FIT Workshop 11/16/10, Slide 18 Factoid Library

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Landscape Performance Series Slide 22 Benefits Toolkit From National Tree Benefit Calculator, by USDA Forest Service and Casey Trees

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Landscape Performance Series Slide 35 Quantifying Benefits Determine from design parameters Stormwater modeling, area calculations, etc. Rating system submittals (LEED, SITES) Gather additional information Use public information (property tax, GIS data) Contact other project stakeholders Estimate using rules of thumb Use online calculators and tools Obtain actual measurements/monitoring data Combine Methods

Landscape Performance Series Slide 37 Landscape Performance Series Case Study Briefs Benefits Toolkit Factoid Library Scholarly Works Thank you to our Landscape Performance Series Sponsors: Founding Partner Annual Sponsor Special Commitment The CLASS Fund/Ralph Hudson Environmental Fellowship AILA/Yamagami/Hope Fellowship

Barbara Deutsch Executive Director x12