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1、AcousticEnvironmentTechnicalBriefGreenGuideforHealthCareEnvironmentalQualityCredit9OverviewManaginghealthcarefacilities’acousticenvironmentsbyloweringnoiselevelsandintroducingappropriatelevelsofbackgroundsoundtomaskintrudingnoisecanimprovehealthcaredelivery.In
2、addition,reducingnoise-relatedstressmayimprovepatientoutcomesandstaffperformanceandreducehealthcarecosts.Hospitalnoisehasbeenextensivelydiscussedinthepopularpressandmedicalliterature.AccordingtoUlrichetal.,areviewofover130researcharticlesinvestigatingnoiseinhos
3、pitalsettingsfoundthat1patients,researchsubjects,andclinicalstaffidentifynoiseasamajorstressor.Thesestudiesfoundthatinhospitalswithreducednoiselevels,patients’satisfactionwithcaregivingincreased,theirsleepimproved,andtheirbloodpressurelowered;similarly,staffinl
4、ow-noiseenvironmentsweremorepositiveabouttheirjobsandindicatedimprovedsleep.TheGreenGuidehasintroducedatwo-pointcredit(GGHCv2.2EnvironmentalQualityCredit9)addressingtheacousticenvironmentinhealthcarefacilities.Thecreditreferencesthe2006AIA/AHADraftInterimSounda
5、ndVibrationDesignGuidelinesforHospitalandHealthcareFacilities(AIA/AHAGuidelines)andfollowstheirorganizationalstructure.TheapproachtoacousticaldesignadvocatedbyboththeGreenGuideandtheAIA/AHAGuidelinesfavorsacousticalcontrolbothatthesourceandinareasimpactedbyunwa
6、ntednoise.Theresultingdesignshould,ataminimum,comprehensivelyaddressthefollowingcategories:(1)ExteriorNoise,(2)AcousticalFinishes,(3)RoomNoiseLevels,(4)SoundIsolation,(5)Paging&CallSystems,(6)BuildingVibration.TheChallengesHealthcarefacilitiesfacemanynon-acoust
7、icalrequirementsthatsupersedeattentiontonoisecontrolandoftenprohibitorrestrictacousticalsolutionsusedinotherbuildingtypes.Busch-Vishniacetal.citedthefollowingchallengestoreducingnoiselevelsinhospitals:useofoverheadpagingproliferationofclinicalalarmslackofsou
8、ndabsorptivematerialsintypicalhealthcareenvironmentsduetoinfectioncontrol2concerns.Inmanycases,healthcarefacilities’traditionalsolutionstoinfectioncontrolconcernsworkagainst
