SustainableSites

SustainableSites

AspectsoftheSustainabilityofaProject:

TransportationSiteSelectionSiteDesignandManagementStormwater Management

SustainableSites

MostSustainableSites:

ReduceTransportationDemandRestoreDegradedorContaminatedAreasMinimizeImpactsofLightPollutionManageStormwater toProtectWaterQualityandAquaticEcosystems

SustainableSites

AssessmentsandMeasurements

Brownfield.Previouslyusedordevelopedlandthatmaybecontaminatedwithhazardouswasteorpollution.

Remediate=Reusable

Opportunity restoredegradedurbanland promoteinfillandreducesprawl

SustainableSites

AssessmentsandMeasurements

CommunityConnectivity.Theamountofconnectionbetweenasiteandthesurroundingcommunity,measuredbyproximityofthesitetohomes,schools,parks,stores,restaurants,medicalfacilities,andotherservicesandamenities.

SustainableSites

AssessmentsandMeasurements

DevelopmentDensity.Thetotalsquarefootageofallbuildingswithinaparticulararea,measuredinsquarefeetperacreorunitsperacre.

SustainableSites

AssessmentsandMeasurements

Diversityofusesorhousingtypes.Thenumberoftypesofspacesorhousingtypesperacre.Aneighborhoodthatincludesadiversityofusesoffices,homes,schools,parks,storesencourageswalking,anditsresidentsandvisitorsarelessdependentonpersonalvehicles.Adiversityofhousingtypesallowshouseholdsofdifferenttypes,sizes,ages,andincomestoliveinthesameneighborhood.

SustainableSites

AssessmentsandMeasurements

Floodplain.Landthatislikelytobefloodedbyastormofagivensize(e.g.,a100yearstorm)

SustainableSites

AssessmentsandMeasurements

Floorarearatio.Therelationshipbetweenthetotalbuildingfloorareaandtheallowablelandareathebuildingcancover.Ingreenbuilding,theobjectistobuildupratherthanoutbecauseasmallerbuildingfootprintmeanslessdisruptionoftheexistingorcreatedlandscape.

SustainableSites

AssessmentsandMeasurements

Footcandle.Ameasureoftheamountofilluminationfallingonasurface.Afootcandle isequaltoonelumenpersquarefoot.Minimizingthenumberoffootcandles ofsitelightinghelpsreducelightpollutionandprotectdarkskiesandnocturnalanimals.

SustainableSites

AssessmentsandMeasurements

Imperviousness.Theresistanceofamaterialtopenetrationbyaliquid.Thetotalimperviousnessofasurface,suchaspaving,isexpressedasapercentageoftotallandareathatdoesnotallowmoisturepenetration.Impervioussurfacespreventrainwaterfrominfiltratingintotheground,therebyincreasingrunoff,reducinggroundwaterrecharge,anddegradingsurfacewaterquality.

SustainableSites

AssessmentsandMeasurements

Nativeandadaptedplants.Nativeplantsoccurnaturallyinagivenlocationandecosystem.Adaptedplantsarenotnativetoalocationbutgrowreliablywithminimalattentionfromhumans.Usingnativeandadaptedplantscanreducetheamountofwaterrequiredforirrigation,aswellastheneedforpesticidesorfertilizers,andmayprovidebenefitsforlocalwildlife.

SustainableSites

AssessmentsandMeasurements

Primefarmland.Previouslyundevelopedlandwithsoilsuitableforcultivation.Avoidingdevelopmentonprimefarmlandhelpsprotectagriculturallands,whichareneededforfoodproduction.

SustainableSites

AssessmentsandMeasurements

Sitedisturbance.Theamountofasitethatisdisturbedbyconstructionactivity.Onundevelopedsites,limitingtheamountandboundaryofsitedisturbancecanprotectsurroundinghabitat.

SustainableSites

AssessmentsandMeasurements

SolarReflectanceindex(SRI).Ameasureofhowwellamaterialrejectssolarheat;theindexrangesfrom0(leastreflective)to100(mostreflective).Usingcoolermaterialshelpspreventtheurbanheatislandeffect(theabsorptionofheatbyroofsandpavementanditsradiationtotheambientair)andminimizesdemandforcoolingofnearbybuildings.

SustainableSites

AssessmentsandMeasurements

Streetgriddensity.Anindicatorofneighborhooddensity,calculatedasthenumberofcenterlinemilespersquaremile.Centerlinemilesarethelengthofaroaddownitscenter.Acommunitywithhighstreetgridandnarrow,interconnectedstreetsismorelikelytobepedestrianfriendlythanonewithalowstreetgriddensityandwidestreets.

SustainableSites

AssessmentsandMeasurements

Transportationdemandmanagement.Theprocessofreducingpeakperiodvehicletrips.

SustainableSites

AssessmentsandMeasurements

Vehiclemilestraveled(VMT).Ameasureoftransportationdemandthatestimatesthetravelmilesassociatedwithaproject,mostoftenforsinglepassengercars.LEEDsometimesusesacomplementarymetricforalternativemodemiles(e.g.,inhighoccupancyautos).

SustainableSites

Transportation

SustainableSites

TransportationStrategies:

LocatenearmasstransitLimitParkingEncourageCarpoolingPromoteAlternativefuelVehiclesOfferIncentivesSupportAlternativeTransportation

SustainableSites

SustainableSites

SustainableSites

SustainableSites

SustainableSites

SustainableSites

SiteSelection

SustainableSites

SiteSelection Strategies

IncreaseDensityChooseRedevelopmentProtectHabitat

SustainableSites

SustainableSites

SustainableSites

SustainableSites

SiteDesignandManagement

SustainableSites

SiteDesignandManagement Strategies

BuildSmallMinimizeHardscapeMinimizeWaterUsageUseReflectiveMaterialDevelopaSustainableManagementPlan

SustainableSites

SustainableSites

Stormwater Management

SustainableSites

Stormwater Management

MinimizeImperviousAreasControlStormwaterHarvestRainwater

SustainableSites

SustainableSites

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