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

4. Analysis of Data Arlington Land Use Green Roof Recommendations Add canopy cover layer and building shapefile Select buildings with roof areas of 6,000 ft 2 and greater. Adjust color to green Analyze map without and with recommended green roofs Add new green roof area to existing area of vegetation Calculate cost of recommended green roofs. Calculate benefits: storm water retention rates, energy savings rates, and particulate matter sequestration rates per ft 2 Canopy Cover and Poverty Add blockgroups and Census 2000 SF3 table Join Census 2000 SF3 table to census shapefile based on blockgroup Choropleth of Poverty Status Add canopy cover layer Set transparency and contrast Analyze trends between canopy cover density and poverty

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

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

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

15. 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

16. 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

17. 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