StART April 24 2019 late night noise limitation presentation 1

• Focus on operations between the hours of 12am to 5am • SEL noise thresholds established at 4 noise monitors locations for departures and arrivals • Website reporting on operations that exceeded the thresholds will occur on a regular basis • Airlines that have exceeded thresholds will be notified Late Night Noise Limitation Program Overview (cont.) • Operations that exceed the thresholds will negatively effect the airline’s Fly Quiet Award score • All airlines will be briefed on the program and encouraged to limit late night operations or change to quieter aircraft SEL Noise Metric • Sound Exposure Level • Single noise event metric • Represents total sound energy from a noise event • Measured in decibels Departure Noise Thresholds dB dB Arrival Noise Thresholds dB dB dB dB January & February 2019 Sample Reports • First draft of reports that are intended to be placed on the Port’s website when program begins • Noise thresholds may be adjusted as more data is studied Late Night Departure Noise at Monitor 12* Departing aircraft that exceeded 91 dB SEL for January 2019 (sample report) *Noise Monitor 12 is located north of the airport at South 126th Street in Burien Airline & Flight Aircraft Type Date SEL Noise Level (dB) EVA Air 025 777-300ER 1/1 92.3 EVA Air 025 777-300ER 1/8 91.8 China Airlines Cargo 5261 747-400 1/8 97.3 EVA Air 025 777-300ER 1/13 92.2 EVA Air 025 777-300ER 1/14 93.7 Asiana Airlines Cargo 2819 747-400 1/14 98.5 EVA Air 025 777-300ER…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]