BAC - SP- Wyle Aviation Noise Impact ~ A Historical Perspective Plotkin 2009-12-10

ev: r e! : ip1n • ; [,;}Till;IIi!!.!{!§: oise istorical Kenneth J. Plotkin Wyle Laboratories ,#;;!@:'.: pTe. 'i:l December 10, 2009 IG :#-::.:{g + ;!! ni!+HPn :( ;iI:f : }T'} ;/; diE' ':'-'-' it';+E i ;iT:-i ::„(J $ } ' ! ' 'i',Ci<•J- T: . i’ '-:id. }': f :„ r :#;r'’,; +) r; TEI :- i:: 1qr :T Objedi ves @ e e e Irnprove understanding of noise impacts – Annoyance and Sleep in this workshop Noise assessments that relate exposure to impacts Results that can be implemented via rules and policy Findings/tools to help agencies and airports deal with noise Manage public expectation Practical mitigation strategies Societal cost inputs to Cost-Benefit models (APMT) Not the first time for these objectives .earn trol : :• 1;- :). -'1 + IF H • b n - Edmund Burke, 1729-1797 repeat it” - George Santayana, 1863-1952, whose knowledge of history apparently did not include Burke. • How did aviation noise metrics evolve? • What was gained along the way? • What was never considered? r ++ B f g : i: F Iq. rea +Gb. ’+_ ;J A : 1 b Ii Need a number that quantifies two items: How loud is it? How often does it happen? Fletcher-Munson curves Classic Loudness weightings A: low levels B: medium levels C: high levels AircraR noise studies in the 1950s: C (high levels) did not correlate with loudness A worked better PNL (Kryter) worked even better =•n {PP q i: +• I F…

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