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Equity of Green Infrastructure Arlington, VA

Equity of Green Infrastructure Arlington, VA. Source: Arlington, VA County Website. Arlington’s Green Status. Named top ten green roof city by Green Roofs Organization Green building incentive program (density bonuses) Urban forest master plan calls for 41% green cover in Arlington

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Equity of Green Infrastructure Arlington, VA

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  1. Equity of Green InfrastructureArlington, VA Source: Arlington, VA County Website

  2. Arlington’s Green Status • Named top ten green roof city by Green Roofs Organization • Green building incentive program (density bonuses) • Urban forest master plan calls for 41% green cover in Arlington • Given Tree City USA status • Should continue to push green trends in order to become a model city

  3. Benefits of Green Infrastructure • Improved health • Increased productivity, increased quality of life • Valuable public space • Biodiversity • Storm water retention • Pollutant sequestration • Psychological benefits • Reduced energy costs Source: www.gardenvisit.com

  4. Map designed by Jenny Jones, 2006 Data Source: Arlington County 2006

  5. Arlington, VA Without Proposed Green Roofs Map designed by Jenny Jones, 2006 Data Source: Arlington County 2006

  6. Arlington, VA With Proposed Green Roofs Map designed by Jenny Jones, 2006 Data Source: Arlington County 2006

  7. Proposed Green Roof Costs • $8/sft for most basic green roofing • $294,522,036 to pay for proposed green roofs • $15/sft for mid-range green roofing • $552,228,818 to pay for proposed green roofs

  8. Proposed Green Roof Benefits • Removal of 684,395 kg of particulate matter from the air each year • Retention of 18,407,627 gallons of rain water during an average rainstorm. • Estimated savings of $7,363,050 per year in air conditioning costs

  9. Problems with Analysis • No standard for measurement of urban green infrastructure • Difficult to map vegetation layer with other data • Lacked means of clipping raster data • Green roof area calculations inflated • Cost/Benefit Analysis of green roof inaccurate

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