Envision™ was developed in joint collaboration between the Zofnass Program forSustainable Infrastructure at the Harvard University Graduate School of Design andthe Institute for Sustainable Infrastructure.The Institute for Sustainable Infrastructure is a not-for-profit education andresearch organization founded by the American Public Works Association, theAmerican Council of Engineering Companies and the American Society of CivilEngineers.
Envision™ is a tool, which itself is part of a larger system, developed to helpevaluate the sustainability of civil infrastructure.This system includes:• A self assessment checklist• The Envision™ Rating Tool• A credential program for individuals• A Project Evaluation and Verification Program• A Recognition Program for Sustainable InfrastructurePRE-ASSESSMENT"CHECKLIST"RECOGNITION"ASSESSMENT"PHASE TOOLKITS""COMPANION TOOLS"
WHAT TYPES OF INFRASTRUCTURE CAN ENVISION™ RATE?ENERGYGeothermalHydroelectricNuclearCoalNatural GasOil/RefineryWindSolarBiomassWATERPotable waterdistributionCapture/StorageWater ReuseStorm WaterManagementFlood ControlWASTESolid wasteRecyclingHazardousWasteCollection &TransferTRANSPORTAirportsRoadsHighwaysBikesPedestriansRailwaysPublic TransitPortsWaterwaysLANDSCAPEPublic RealmParksEcosystemServicesINFORMATIONTelecommunicationsInternetPhonesData CentersSensors
1 PURPOSEQL1.1 Improve Community Quality of LifeQL1.2 Stimulate Sustainable Growth and DevelopmentQL1.3 Develop Local Skills and Capabilities2 WELLBEINGQL2.1 Enhance Public Health and SafetyQL2.2 Minimize Noise and VibrationQL2.3 Minimize Light PollutionQL2.4 Improve Community Mobility and AccessQL2.5 Encourage Alternative Modes of TransportationQL2.6 Improve Accessibility, Safety & Wayfinding3 COMMUNITYQL3.1 Preserve Historic and Cultural ResourcesQL3.2 Preserve Views and Local CharacterQL3.3 Enhance Public SpaceQL0.0 Innovate or Exceed Credit Requirements
1 COLLABORATIONLD1.1 Provide Effective Leadership & CommitmentLD1.2 Establish a Sustainability Management SystemLD1.3 Foster Collaboration and TeamworkLD1.4 Provide for Stakeholder Involvement2 MANAGEMENTLD2.1 Pursue By-Product Synergy OpportunitiesLD2.2 Improve Infrastructure Integration3 PLANNINGLD3.1 Plan Long-Term Maintenance and MonitoringLD3.2 Address Conflicting Regulations and PoliciesLD3.3 Extend Useful LifeLD0.0 Innovate or Exceed Credit Requirements
1 MATERIALSRA1.1 Reduce Net Embodied EnergyRA1.2 Support Sustainable Procurement PracticesRA1.3 Use Recycled MaterialsRA1.4 Use Regional MaterialsRA1.5 Divert Waste from LandfillsRA1.6 Reduce Excavated Materials Taken Off SiteRA1.7 Provide for Deconstruction and Recycling2 ENERGYRA2.1 Reduce Energy ConsumptionRA2.2 Use Renewable EnergyRA2.3 Commission and Monitor Energy Systems3 WATERRA3.1 Protect Fresh Water AvailabilityRA3.2 Reduce Potable Water ConsumptionRA3.3 Monitor Water SystemsRA0.0 Innovate or Exceed Credit Requirements
1 SITINGNW1.1 Preserve Prime HabitatNW1.2 Preserve Wetlands and Surface WaterNW1.3 Preserve Prime FarmlandNW1.4 Avoid Adverse GeologyNW1.5 Preserve Floodplain FunctionsNW1.6 Avoid Unsuitable Development on Steep SlopesNW1.7 Preserve Greenfields2 LAND+WATERNW2.1 Manage StormwaterNW2.2 Reduce Pesticides and Fertilizer ImpactsNW2.3 Prevent Surface & Groundwater Contamination3 BIODIVERSITYNW3.1 Preserve Species BiodiversityNW3.2 Control Invasive SpeciesNW3.3 Restore Disturbed SoilsNW3.4 Maintain Wetland and Surface Water FunctionsNW0.0 Innovate or Exceed Credit Requirements
1 EMISSIONSCR1.1 Reduce Greenhouse Gas EmissionsCR1.2 Reduce Air Pollutant Emissions2 RESILIENCECR2.1 Assess Climate ThreatCR2.2 Avoid Traps and VulnerabilitiesCR2.3 Prepare For Long-Term AdaptabilityCR2.4 Prepare for Short-Term HazardsCR2.5 Manage Heat Island EffectsCR0.0 Innovate or Exceed Credit Requirements
SAMPLE PROJECTANALYSISANALYZINGALTERNATIVESTO MAKE DECISIONSEach potential alternative was studied creditby credit, providing the basis for a strategicanalysis of the benefits and risks of eachoption.Envision was used to study various potentialalternatives for a proposed bridge. The currentproposal did not include public transit, whilethree alternatives; a new bridge, a refurbishedbridge, and a tunnel, all included public transit.
These values were added upto create a spreadsheetoutlining the overall “score”for each proposal.ALTERNATIVE ANALYSIS
Viewed graphically, the pointshelp to illustrate the trade-offsof each project.RESULTS Bridge Bridge with Rapid Transit Refurbishment Tunnel
THE FLEXIBILITY OFVALUEThe three alternatives scored similarly, but indifferent ways. Envision helped to identifythese tradeoffs.Recognizing the trade-offs in variousalternatives is important for identifying thebest project for a given location and context.IDENTIFYING THETRADE-OFFSWhile Envision establishes a point value foreach credit and level of achievement,communities may find they value the uniquequalities of their historic districts, habitats, orresources differently.
Anthony Kaneakane@gsd.harvard.edu(617) 496-3138FOR MOREINFORMATIONABOUT ENVISIONzofnass.org