WELCOME TO THE "OPEN SOURCE" GREEN INFRASTRUCTURE MOVEMENT!
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A WORKING DEFINITION
The term "green infrastructure" is being applied at a wide range of landscape scales, from statewide conservation networks to streetside rain gardens. Fundamentally, green infrastructure is just a framework for recognizing the valuable services that nature provides for the human environment. At a bioregional scale, green infrastructure supports essential ecosystem functions. At a metropolitan scale, green infrastructure forms a tapestry of open space that serves and guides smarth growth. At a site scale, green infrastructure integrates functions and makes life-giving processes visible and meaningful. Large protected and connected natural habitats are the foundation for any regional green infrastructure network. Parks, trails, greenways, and other open spaces should link communities to each other and a regional landscape matrix. Holistically conceived, a green infrastructure network is also a regenerative solution to urban challenges associated with stormwater and waste management, mobility and public health, local food and energy security, and even protection from natural and man-made hazards.

A FRAMEWORK: THE TABLE OF ELEMENTS

1UW Urban Wild	1Wl Wetland	1Sl Shoreline	1WC Wildlife Crossing	1RC Riparian Corridor	1Gb Greenbelt	1BH Backyard Habitat	1UF Urban Forest
1HC Habitat Corridor	1GG Guerrilla Garden

SYSTEM 2: COMMUNITY

2P Park	2RL Residential Landscape	2Wp Workplace	2TP Third Place	2Sy Schoolyard	2SG Streetside Garden	2PA Public Art	2IR Intersection Repair
2CG Community Garden	2Sq Square	2JS Junk Space

SYSTEM 3: WATER

3RG Rain Garden	3Bs Bioswale	3SP Stormwater Planter	3Wp Wetpond	3Dp Drypond	3CW Constructed Wetland	3GR Green Roof	3Ci Cistern
3FS Filter Strip	3PP Porous Pavement	3GA Green Alley	3Tb Treebox	3OF Oyster Filter	3BR Blue Roof	3SC Stormwater Channel

SYSTEM 4: MOBILITY

4T Trail	4CS Complete Street	4GS Green Street	4TC Transit Connection	4Bw Blueway	4BL Bike Lane	4W Woonerf	4Gw Greenway
4Sr Sharrow	4Sw Sidewalk	4BB Bike Box	4PS Pedestrian Street	4Bd Bicycle Boulevard

SYSTEM 5: ENERGY & MATERIALS

5WF Wind Farm	5WL Waste Landscape	5F Farm	5R Ranch	5RE Road Energy	5AL Algal-power Landscape	5Cp Compost

GREEN INFRASTRUCTURE PLANNING AND PROGRAMMATIC CASE STUDIES
Lake Forest Park Green Infrastructure Plan Lake Forest Park, Washington
Homer Suitability Map
Planning Sustainable Communities: A Green Infrastructure Guide for Milton Keynes and the South Midlands, England
GI Guide for British Columbia, Canada
GI applied in North East England
Open Space Seattle 2100
Open Space San Francisco 2100
Metropolitan Washington Council of Government's Green Infrastructure Program
Metropolitan Washington Green Infrastructure Tour
Maryland's Green Infrastructure Assessment
EPA and Washington, D.C. Adopt Green Infrastructure Strategy
Shoreline Green Infrastructure Plan, Shoreline, Washington
Green Infrastructure North West, England
The Conservation Fund's Baltimore County Green Infrastructure Case Study
Green Municipalities - A Guide to Green Infrastructure for Canadian Municipalities
Kansas City's Mid-America Regional Council (MARC) MetroGreen Initiative
Englands TCPA Green Infrastructure Worksheet
Duwamish Valley Vision Map & Report 2009 by the Duwamish River Cleanup Coalition in Seattle (uses a variation on the green infrastructure systems methodology)