02740cam a2200325Ia 450000500170000000800410001702000180005803500150007605000280009110000180011924501480013726400610028530000890034649000350043550000590047050400560052952013920058565000180197770000180199570000270201371000690204071000410210971000520215083000230220285601080222590700250233390200110235899800280236999900170239720260818112629.0160512s2016    dcuad   obt  f000 0 eng d  a9781523108893  a.b12292849 4aHE9797.4.N6bS36 2016eb1 aSchomer, Paul10aEvaluating methods for determining interior noise levels used in airport sound insulation programs /cPaul Schomer, Jack Freytag, Randy Waldeck 1aWashington, D.C. :bTransportation Research Board,c2016  a1 online resource (1 volume (various pagings)) :billustrations (some color), charts1 aACRP report,x1935-9802 ;v152  aAt head of title: Airport Cooperative Research Program  aIncludes bibliographical references (pages 113-114)  aThis report provides guidance for selecting and implementing methods for measuring noise level reduction in dwellings associated with airport noise insulation programs. The research complements the results of ACRP Report 89: Guidelines for Airport Sound Insulation Programs and was undertaken to assess the accuracy and validity of various noise level reduction measurement procedures currently used in airport noise insulation programs. Acoustical field measurements were made at 10 homes near San Diego International Airport and nine homes near Boston Logan International Airport. Seven measurement methods were tested: outdoor ground-level artificial sound source (loudspeaker); outdoor elevated artificial source (loudspeaker); indoor artificial sound source (loudspeaker); aircraft flyover: fixed microphone; aircraft flyover: moving microphone; architectural survey and noise reduction calculations; and acoustic intensity measurements, exterior loudspeaker and interior intensity. The report includes a summary of sound insulation theory and the science behind noise level reduction, and an overview of FAA-sponsored noise insulation programs. The report also provides guidance, including a decision matrix, for selecting an appropriate acoustical testing method. Lastly, the report provides suggested practices for each measurement technique, based on the results of the research 0aAirport noise1 aFreytag, Jack1 aWaldeck, Randy,d1978-2 aNational Research Council (U.S.).bTransportation Research Board2 aAirport Cooperative Research Program1 aUnited States.bFederal Aviation Administration 0aACRP report ;v152403Download: Knoveluhttp://app.knovel.com/hotlink/toc/id:kpEMDINLU1/evaluating-methods-for?kpromoter=marc  a.b12292849bmngc cn  a251209  b0c190207deeh  fng0  c40666d40666