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www.pugh-scarpa.com Gwynne Pugh, FAIA, ASCE, LEED A.P. P UGH + S CARPA A RCHITECTS
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What is Sustainability?
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The Triple-Bottom Line
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Regenerative Less Energy RequiredMore Energy Required Restorative Sustainable Green Conventional Practice Relative Improvement (LEED, GB Tool, Green Globe, etc.) Neutral – “100% less bad” (McDonough) Humans PARTICIPATING AS nature – Co-evolution of the Whole System Humans DOING THINGS TO nature – assisting the evolution of Sub-Systems “One step better than breaking the law” (Croxton) Technologies / Techniques Fragmented Living Systems Understanding Whole System Regenerating System Degenerating System Trajectory of Environmentally Responsible Design © All rights reserved. Integrative Design Collaborative and Regenesis 2006 - Contact Bill Reed, reed@integrativedesign.net for permission to use
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THE ISSUES 1.AB 32/ SB375 puts focus on transportation / vmt and energy efficiency 2.Federal dollars increasingly favoring or requiring emission reduction and neighborhood efficiency 3.Traditional revenue generators are no longer viable 4.Growing grass roots demand for livability
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SUSTAINABLE NEIGHBORHOODS: 1. Are in the right place 2. Facilitate non-motorized forms of mobility, principally walking and biking 3. Have a dense street grid with multiple connections both within the neighborhood and at its border 4. Have a diversity of uses, enabling daily needs to be met on foot 5. Provide housing types for multiple income levels and stages in life 6. Make provisions for the local production and/or procurement of healthy food 7. Reuse and adapt existing buildings while preserving historic ones 8. Provide opportunities for buildings to share energy and water infrastructure 9. Incentivize or require buildings to consume fewer natural resources
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ARE IN THE RIGHT PLACE Infill or Adjacent to existing development of no less than 7 du/acre, or Have adequate transit service, or Within 1/2 mile walk distance of at least seven distinct neighborhood services, and Do not encroach on sensitive habitat and avoid areas prone to flooding
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–1. infill –2. adequate transit service –3. adjacent to existing development
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FACILITATE NON-MOTORIZED FORMS OF MOBILITY, PRINCIPALLY WALKING AND BIKING A network of bicycle lanes (or streets with auto speeds slow enough for safe biking) that connect to major job centers or transit hubs and provisions for safe and secure bike parking and storage Buildings facades and entrances that face streets or public spaces (but not parking lots) Continuous sidewalks Streets that are narrow enough to comfortably cross and slow down automobile traffic On-street parking Limited building setbacks Street trees at intervals no greater than 40 ft.
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HAVE A DENSE STREET GRID WITH MULTIPLE CONNECTIONS BOTH WITHIN THE NEIGHBORHOOD AND AT ITS BORDER External connections at a minimum of every 800 feet Internal connectivity of at least 150 intersections/square mile (intersections that lead to cul-de-sacs don’t count!)
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external connections at a minimum of every 800 feet internal connectivity of at least 150 intersections per sq mile Manhattan 152 Santa Monica 316 Portland 442
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HAVE A DIVERSITY OF USES, ENABLING DAILY NEEDS TO BE MET ON FOOT Within 1/2 mile walk distance of at least seven distinct neighborhood services that are located in clusters of at least three services
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half-mile walk distance of seven neighborhood services
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PROVIDE HOUSING TYPES FOR MULTIPLE INCOME LEVELS AND STAGES IN LIFE Have enough architectural diversity to serve students and young singles, families with children, empty-nesters, and the elderly Have at least 20% of rental units or 10% of for-sale units for households making 80% or less of AMI
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RESIDENTIAL DIVERSITY Individual / Family Special Needs Senior First-time buyers Sweat Equity Workforce –architectural diversity –economic diversity
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MAKE PROVISIONS FOR THE LOCAL PRODUCTION AND/OR PROCUREMENT OF HEALTHY FOOD Prohibit CC&Rs and discourage zoning that ban the growing of produce Set aside at least 60 sf of community gardening space (in a walkable location) for every dwelling unit Identify space for regular farmers markets and encourage their development
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prohibit regulation that bans growing of produce set aside community gardening space identify space for regular farmers markets
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REUSE AND ADAPT EXISTING BUILDINGS WHILE PRESERVING HISTORIC ONES During redevelopment, set a goal of preserving at least 20% of existing building stock Discourage zoning obstacles to adaptive reuse except for strategic economic situations (e.g. preservation of jobs) Preserve all historic buildings, defined as listed or eligible to be listed as historic landmarks
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discourage zoning obstacles to adaptive reuse
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PROVIDE OPPORTUNITIES FOR BUILDINGS TO SHARE ENERGY AND WATER INFRASTRUCTURE Make investments in localized stormwater and district energy infrastructure so that the burden of pursuing best practices (principally stormwater infiltration and efficient or renewable Power generation) can be shared and economies of scale exploited
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investment in localized stormwater
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INCENTIVIZE OR REQUIRE BUILDINGS TO CONSUME FEWER NATURAL RESOURCES Require buildings in which agency has an investment, to get certified through a credible, third-party green building program Incentivize buildings in areas over which agency has jurisdiction, to get certified
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incentivize buildings in jurisdiction to get certified
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Denver, Colorado Existing conditions
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Denver, Colorado Mixed-use buildings on one block
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Denver, Colorado Public street improvements: street trees, street lamps, decorative traffic signals, bulbouts
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Denver, Colorado Commissioned by Colfax on the Hill Additional mixed-use development, remodeling of existing buildings
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40% are commute About same share are errands, visiting, etc. Where are PM peak trips going? Other External-to- Internal Other Internal-to- External Recreation College School Not Home Based Home-Based Other Work
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LUCE targets specific programs to address all types of trips. Employer TDM Districts Parking cashout Safe routes to school Parking programs Transit passes Transit investments Walking Bike facilities Parking programs Different programs target different trips
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Less than 10% mode shift citywide necessary to achieve NNNT goal How do we achieve No Net New Trips? Existing PM trips = 60,100 1984 Plan in 2030 = 8% increase LUCE in 2030 = 1% decrease.
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THE 4D ADJUSTMENT PROCESS – SUPPLY SIDE Density - residential and non- residential development per acre; Diversity - mix of residential, retail and employment land uses on the site; Design - connectivity and walkability of the site’s transportation networks; and Destination Accessibility - location relative to major regional attractions, as infill sites generate fewer and shorter vehicle trips than fringe area development.
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Parking policies Reduced minimum parking requirements Unbundled parking Public parking pricing Transportation System Improvements Bikes Pedestrians Transit Transportation Demand Management Subsidized transit passes Parking cashout Car sharing Bike sharing Mode Shift Policies Safe routes to schools Carpooling Telecommuting Transportation Management Associations DEMAND SIDE ADJUSTMENTS
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Location: 4 Ds Residential parking Commercial parking management Transit pass program Safe routes to schools Transit improvements Bike improvements Pedestrian improvements Carpooling/Telecommuting Parking cashout Transportation Management Assns HOW WE ACHIEVE NO NET NEW TRIPS Up to 17% commute trip reduction in TDM zones. Up to 5% non- commute trip reduction
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41 DRAFT EIR FINDINGS – GLOBAL CLIMATE CHANGE GHG Emissions in Annual Metric Tons AB 32 Target Sustainable City Plan Target
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www.pugh-scarpa.com
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