Sea-Tac Stakeholder Advisory Round Table (StART)
Aviation Noise Working Group
DRAFT NEAR-TERM AVIATION NOISE ACTION AGENDA SUMMARY
as of 12-13-19
Near-term Action
Item
Late Night Noise Limitation
Program
Runway Use Plan
Agreement
Glide Slope Analysis Ground Noise Analysis
Description Voluntary measures to
reduce late night (12:00
AM to 5:00 AM) noise
through incentivizing air
carriers to fly at less noise
sensitive hours or
transition to quieter
aircraft
Revise the current
Runway Use Plan to
minimize use of the 3rd
Runway during the late
night hours (12:00 AM to
5:00 AM)
Raising Runway
34R’s glideslope
to lessen aircraft
approach noise
Analyze airfield ground
noise sources including
researching opportunities
to minimize the impacts
of reverse thrust noise
Components Reestablish conversations
with air carriers on
scheduling flights outside
of the late-night hours
Recognizing there are
reasons why many air
carriers fly during the late
night hours, establish a
noise threshold that
would identify the louder
aircraft flying during the
late night hours
to incentivize the
Updated language for:
3
rd
Runway
daytime/evening
runway usage
3
rd
Runway late night
runway usage
North flow
Preferential Use
during nighttime
hours
Monthly monitoring
of compliance in
partnership with FAA
Consider various
strategies and timelines
for raising Runway 34R’s
glideslope
Once strategy for 34R is
determined, consider
options for raising the
glide slope on all runways
to higher than 3 degrees
TBD
transition to quieter
aircraft
Late night noise threshold
observance would be
tracked as part of the
Port's already established
Fly Quiet Program and
publicized on a
more regular basis along
with the results of the
other Fly Quiet Programs'
aircraft noise-related
categories
Potential Changes
Reduction of aircraft noise
during the late night hours
Minimized Use of the 3rd
Runway during the late
night hours
Reduction of aircraft
noise for communities
south of Sea-Tac
Reduction of aviation
noise
Key Responsible
Parties
Port of Seattle, air Carriers
and cargo operators
Port of Seattle and FAA Port of Seattle, FAA, and
air carriers
TBD
Notes
