DNL65 Airplane Modeling Graphic Pages from June 10, 2024 Aviation Noise Working Group Part 150 Study Technical Review Committee Meeting #1_0001

This aviation noise education graphic illustrates that Day-Night Average Sound Level (DNL) 65 dBA can result from 1 event/day at SEL 114.4 dBA, 10 events/day at SEL 104.4 dBA, or 100 events/day at SEL 94.4 dBA. The diagram uses aircraft icons to visually demonstrate how DNL integrates both frequency and intensity of noise events into a single equivalent metric.
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