TagHighline Forum(259)

July 22, 2020 – Wednesday - 2:30 pm to 4:30 pm via MS TEAMS __________________________________________________________________ 2:30pm Convene Meeting/Introductions Highline Forum Co-Chair Lydia Assefa-Dawson 2:35pm Public Comments Audience SPECIAL NOTE REGARDING PUBLIC COMMENTS FOR JULY 22nd PLEASE NOTE: DUE TO THE GOVERNOR’S ‘STAY AT HOME’ ORDER there will be no physical location for this meeting. Those wishing to provide public comment will have the opportunity to: 1) Deliver public comment via email: All written comments received by email to Kaplan.D@PortSeattle.org will be distributed to Forum members. 2) Deliver public comment via MS Teams: To take advantage of this option, please email Kaplan.D@PortSeattle.org with your name and the topic you wish to speak to by 9:00 a.m. PT on Wednesday, July 22nd. You will then be provided with a link to join the MS Teams meeting. This process will be in place for awhile. 2:50pm Host Update: Highline College President John Mosby Highline College 3:00pm UW MOV-UP and Related Studies Elena Austin, Dr. Tim Larson UW Dept. of Env. & Occ Health 3:45pm Temporary Noise Monitors Update Stan Shepherd Port of Seattle 3:55pm South King County Fund Update Bookda Gheisar Port of Seattle 4:10pm StART Update Lance Lyttle Port of Seattle 4:20pm Emerging Issues All 4:30pm Adjourn Next Meeting: Sept 23 – Port of Seattle Highline Forum Co-Chairs mailto:Kaplan.D@PortSeattle.org mailto:Kaplan.D@PortSeattle.org Highline Forum 2020 Meeting Dates Wednesday, April 1, 2020, 2:30pm to 4:30pm Highline School District, Puget Sound Skills Center Medical Sciences Building (new wing) 18010 8th Avenue S., SeaTac CANCELLED DUE TO…

South King County Fund, StART & Noise Program Updates May 27, 2020 – Wednesday - 2:30 pm to 4:30 pm via ZOOM __________________________________________________________________ 2:30pm Convene Meeting/Introductions Highline Forum Co-Chair Commissioner Calkins 2:35pm Public Comments Audience SPECIAL NOTE REGARDING PUBLIC COMMENTS FOR MAY 27th PLEASE NOTE: DUE TO THE GOVERNOR’S ‘STAY AT HOME’ ORDER there will be no physical location for this meeting. Those wishing to provide public comment will have the opportunity to: 1) Deliver public comment via email: All written comments received by email to Kaplan.D@PortSeattle.org will be distributed to Forum members. 2) Deliver public comment via Zoom: To take advantage of this option, please email Kaplan.D@PortSeattle.org with your name and the topic you wish to speak to by 9:00 a.m. PT on Wednesday, May 27th. You will then be provided with a link to join the Zoom meeting. This process will be in place until further notice. 2:50pm Highline Forum Administrative Issues Highline Forum Co-Chair Community Co-Chair Selection Commissioner Calkins 3:00pm Host City Update: City of Federal Way City of Federal Way Mayor Jim Ferrell 3:10pm COVID-19 Updates (Round Table) All 3:55pm South King County Fund Update Andy Gregory Port of Seattle 4:15pm StART Update Lance Lyttle Port of Seattle 4:25pm Noise Program Update Arlyn Purcell Port of Seattle 4:30pm Adjourn Next Meeting: July 22 – Highline College Highline Forum Co-Chairs mailto:Kaplan.D@PortSeattle.org mailto:Kaplan.D@PortSeattle.org mailto:Kaplan.D@PortSeattle.org mailto:Kaplan.D@PortSeattle.org Highline Forum 2020 Meeting Dates Wednesday, April 1, 2020, 2:30pm to 4:30pm Highline School District, Puget Sound Skills Center Medical Sciences Building (new…

Theme: 2020 Legislative Session and Shared Agendas January 22, 2020 – Wednesday - 2:30 pm to 4:30 pm SeaTac City Hall 4800 S. 188th Street, SeaTac __________________________________________________________________ 2:30pm Convene Meeting/Introductions Highline Forum Co-Chair Commissioner Felleman 2:35pm Public Comments Audience 2:50pm Host City Update: City of SeaTac City of SeaTac representative 3:10pm 2020 State Legislative Agendas All 3:55pm StART Updates Tom Fagerstrom Eric Schinfeld Lance Lyttle Port of Seattle 4:15pm Emerging Issues All 4:25pm Highline Forum Administrative Issues All • 2020 Meeting Hosts (May 27) • Community Co-Chair Selection (Mar 25) 4:30 pm Adjourn Next Meeting: Mar. 25, TBD Highline Forum Co-Chairs Theme: TBD

• Sound level decreases by 6 dB per doubling of distance • Additional losses due to atmospheric absorption  Ground Effect • Sound levels are lower when reflected off of soft ground vs. hard ground Sound Propagation  Refraction due to Temperature • Gradients in temperature cause the bending of sound paths • Sound bends upward during a temperature lapse (cool air over warm) • Sound bends downward during a temperature inversion (warm air over cool) Sound Propagation  Refraction due to Wind • Gradients in wind speed cause the bending of sound paths • Sound bends upward causing sound shadows in the upwind direction • Sound bends downward increasing sound levels in the downwind direction • Differences between upwind and downwind directions can be 20 dB Ground Noise Study Scope  Ground Noise Data Research • Meet with StART • Identify ground noise sources and locations • Identify atmospheric conditions that may increase ground noise  Noise Monitoring • Obtain and analyze data from permanent monitors • Collect and analyze additional temporary noise monitoring data  Identify Mitigation Options • Present findings on ground noise sources and levels and solicit input on mitigation measures • May include changes in aircraft operating procedures or utilization of new or existing structures to reduce community noise exposure  Report Project Results Aircraft Ground Noise Sources Discussion  Taxi/Idle  Auxiliary Power Units (APUs)  Engine Maintenance Run-ups  Ground Service Equipment  Reverse Thrust Noise Monitoring Discussion  Locations  Times of…

November 20, 2019 – Wednesday - 2:30 pm to 4:30 pm Dining Hall at Des Moines Beach Park Event Center 22307 Dock Avenue S, Des Moines __________________________________________________________________ 2:30pm Convene Meeting/Introductions Highline Forum Co-Chair Commissioner Felleman 2:35pm Public Comments Audience 2:50pm Host City Update: City of Des Moines City of Des Moines representative 3:10pm StART Update Stan Shepherd Noise program Manager, Port of Seattle 3:30pm SR 518 Corridor Study Update Thomas Noyes Senior Transportation Planner, WSDOT 3:50pm Emerging Issues All 4:10pm 2020 Suggested Meeting Topics All 4:20pm 2020 Schedule of Meetings All 4:30 pm Adjourn Next Meeting: Jan. 22, TBD Highline Forum Co-Chairs Theme: TBD

• 2017 legislative proviso to conduct study of SR 518 corridor, updating previous corridor study (2002 - RDP) – Study funding (legislature): $500,000 – WSDOT to use a Practical Solutions approach in this study – Final report submitted by November 30, 2019. • WSDOT hired WSP America Inc. in summer 2018 to help complete study • The Port of Seattle provided addtl. funding of $400,000 for supplemental traffic/modeling work (SR 518 corridor/subarea analysis) SR 518 Study Background Cont. • Rise in population and employment resulting in higher demands on SR 518 and connecting corridors – Capacity levels already limited – Sea-Tac International Airport passenger and air cargo growth – Growth in communities on the SR 518 corridor (Burien, Des Moines, Sea- Tac, Tukwila) • No plans to modify I-5/I-405 interchange • I-405 BRT project may compete for limited ROW on SR 518 near Tukwila International Boulevard Station (TIBS) SR 518 Corridor SR 518 Study: Practical Solutions Framework Law/ Legislature Maintenance & Operations Planning Planning Scoping Programming Designing Implementing Implement Solutions Develop Funded Solutions Assign Resources Refine Solutions Assess Alternative Strategies Establish Policy Framework Manage System Assets Identify Needs SR 518 Corridor Planning Study Stakeholder Committee • Burien, Des Moines, SeaTac, Tukwila • King County Metro • Port of Seattle • Puget Sound Regional Council (PSRC) • Sound Transit • Tribes • WSDOT HQ • WSDOT NW Region Communications and Outreach: Web Survey _______________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _…

• 9/25 Highline Forum – Lance Lyttle StART’s Purpose • StART was created to establish a forum: – For constructive community input and action – And, to begin to work together more cooperatively to identify possible solutions Sea-Tac Stakeholder Advisory Round Table StART’s Workplan • In early 2018, a series of prioritization exercises led to an agreed upon focus on aviation noise • Creation of a working group to study potential near-term actions to prevent & reduce aviation noise Sea-Tac Stakeholder Advisory Round Table Aviation Noise Working Group Near term actions to prevent & reduce noise: – Late Night Noise Limitation Program – – Runway Use Plan Agreement – – Glide Slope Adjustment – IN PROCESS – Airfield Noise Assessment – IN PROCESS – Noise Abatement Departure Profile – IN PROCESS – A320 Aircraft Noise – INITIATED Sea-Tac Stakeholder Advisory Round Table Late Night Noise Limitation Program • Voluntary effort to reduce late night noise by encouraging air carriers to fly at less sensitive hours or transition to quieter aircraft • Adds a new 4th category to the Fly Quiet Program • Commenced on July 1, 2019 Sea-Tac Stakeholder Advisory Round Table Runway Use Plan Agreement • Revised current agreement to minimize use of the 3rd Runway during late-night hours • Late night hours: 12 am to 5 am • In effect: September 4, 2019 Sea-Tac Stakeholder Advisory Round Table Glide Slope Adjustment • Raising Runway 34R’s glideslope to lessen aircraft approach noise • From 2.75 to 3.0/3.1 degrees •…