Part 1 5 0 Presentation Part 1 5 0 Presentation Technical Review - PowerPoint PPT Presentation

SEA Part 1 5 0 Noise Com patibility Study Part 1 5 0 Presentation Part 1 5 0 Presentation Technical Review Com m ittee Technical Review Com m ittee October 1 , 2 0 1 2 October 1 , 2 0 1 2 Seattle-Tacom a I nternational Airport 1

SEA Part 1 5 0 Noise Com patibility Study Agenda  I ntroductions  Updated Noise Exposure Maps  Current Abatem ent Measures Recom m ended to: • Continue • Continue w ith Modifications • Not be Carried Forw ard  New Potential Abatem ent Measures  Current Mitigation Measures Recom m ended to: • Continue • Continue w ith Modifications • Not be Carried Forw ard  New Potential Mitigation Measures  New Potential Program Managem ent Measures  Update on Hush House  Part 1 5 0 Process from Here to Approval 2

SEA Part 1 5 0 Noise Com patibility Study Updated Noise Exposure Maps • Revised Noise Exposure Contours • Original Existing Noise Contour = 2011 • 317,873 Annual Operations (870.5 average day) • Revised Existing Noise Contour = 2013 • 313,352 Annual Operations (858.1 average day) • Original Future Noise Contour = 2016 • 363,755 Annual Operations (996.6 average day) • Revised Existing Noise Contour = 2018 • 385,270 Annual Operations (1,055.5 average day) 3

SEA Part 1 5 0 Noise Com patibility Study Existing ( 2 0 1 3 ) Noise Exposure Map - DRAFT Existing (2013) Noise Exposure Contour Existing (2011) Noise Exposure Contour 4

SEA Part 1 5 0 Noise Com patibility Study Future ( 2 0 1 8 ) Noise Exposure Map - DRAFT Future (2018) Noise Exposure Contour Future (2016) Noise Exposure Contour 5

SEA Part 1 5 0 Noise Com patibility Study Current Abatem ent Measures Recom m ended to Continue • Measure A-1 : Explore Lim ited Rescheduling of Nighttim e Flights • Measure A-3 : Use VOR Radials to Curb Aircraft Drifting from Noise Abatem ent Track • Measure A-1 1 : Preferential Runw ay Use • Measure A-1 5 : Use of FMS Procedures • Measure A-1 6 : Use of Ground Equipm ent 6

SEA Part 1 5 0 Noise Com patibility Study Current Abatem ent Measure Recom m ended to Continue w ith Modifications Measure A-1 0 : Maintenance Run-up Regulations  Continue measure with modification pending the outcome of the hush house study  Minimal administrative and operational costs Measure A-1 2 : Developm ent/ I m plem entation of a Fly Quiet Program  Continue measure with modification to expand program per Measure A-19 7

SEA Part 1 5 0 Noise Com patibility Study Current Abatem ent Measures Recom m ended to not be Carried Forw ard Measure A-7 : Establish Noise Barriers/ Run-up Enclosure  Terrain on the west side of the airport and the FAA height restrictions make it impossible to site a berm/ wall that would effectively reduce noise. Siting of a hush house is being re- evaluated under a separate measure (see Measure A-18). Measure A-8 : Restrict Taxiing of Aircraft to/ from Maintenance Areas during Nighttim e Hours  This measure was not implemented. Very few maintenance run- ups occur at night Measure A-1 3 : Evaluate I ncreased Use of the Duw am ish/ Elliott Bay Corridor w ith FMS  This measure was disapproved by the FAA. Implementing this action would greatly impact the efficiency of the air traffic system in the region and degrade safety, which would not be consistent with 14 CFR Part 150, section 150.35(b)(3)(iii). 8

SEA Part 1 5 0 Noise Com patibility Study Current Abatem ent Measures Recom m ended to not be Carried Forw ard Measure A-1 4 : Nighttim e Use of Com m encem ent Bay Departure Corridor  This measure was not implemented due to concerns from multiple potentially affected local jurisdictions. Measure A-1 7 : Raise Altitude W here Aircraft I ntercept Glide Slope  Standard approach is 3-degree glide slope for safety, performance of the aircraft, and comfort to the passengers. Raising altitude would have very little effect on noise levels and would reduce the operational efficiency of the airport during poor weather. 9

SEA Part 1 5 0 Noise Com patibility Study New Potential Abatem ent Alternatives Measure A-1 8 : Construct a hush house at the airport to m inim ize run-up noise.  Benefits: Would reduce noise from ground run-up activity  Draw backs: Requires a large land envelope, which is in demand at Sea-Tac.  Recom m endation: Construction of a hush house is recommended at a site to be determined 1 0

SEA Part 1 5 0 Noise Com patibility Study New Potential Abatem ent Alternatives Measure A-1 9 : Expand the Fly Quiet Program w ith new elem ents, including: - Use of reporting of operational modes (i.e. arrivals or departures) for comparison to runway use goals. - Include provisions for the use of the hush house. - Adding different categories of airline operations.  Benefits: Could improve the effectiveness of the existing Fly Quiet Program at Sea-Tac Airport.  Draw backs: Would not reduce the number of incompatible uses within the 65 DNL. Program is voluntary and could encounter resistance from airlines and aircraft operators.  Recom m endation: Recommended for inclusion in the NCP 1 1

SEA Part 1 5 0 Noise Com patibility Study Current Mitigation Measures Recom m ended to Continue Measure M-2 b: I nsulation of Schools  The FAA and Port have each committed $50 million to complete this measure.  Highline Community College – 14 of 22 college buildings identified to receive funds are complete Measure M-5 : Property Advisory Service Measure M-6 : Local Governm ent Rem edy Support Measure M-7 : Funding for Land Use/ Noise Com patibility Planning Measure M-1 1 : Approach Transition Zone Acquisition  Conduct on a voluntary basis 1 2

SEA Part 1 5 0 Noise Com patibility Study Current Mitigation Measures Recom m ended to Continue South ATZ ATZ Single-Fam ily Multi-Fam ily N 1 3

SEA Part 1 5 0 Noise Com patibility Study Current Mitigation Measures Recom m ended to Continue w ith Modification Modify the Noise Rem edy Boundary  The Noise Remedy Program boundary in use at Sea-Tac is based on the 2000 noise exposure contours developed for the 1985 Part 150 Study.  This Part 150 update has developed noise exposure contours for Future (2018) conditions that are substantially smaller than the previous contours from the 1985 Part 150 Study due to improved engine technology and changes in aircraft operations.  All eligible homeowners located within the existing Noise Remedy Boundary but outside of the modified Noise Remedy Boundary that request participation will be allowed to enter into the new program prior to the FAA’s approval of the new NCP . 1 4

SEA Part 1 5 0 Noise Com patibility Study Current Mitigation Measures Recom m ended to Continue w ith Modification 2 0 1 8 Future Noise Contour Current Noise Rem edy Boundary Updated Noise Rem edy Boundary ( Draft) 1 5

SEA Part 1 5 0 Noise Com patibility Study Current Mitigation Measures Recom m ended to Continue w ith Modification Measure M-2 a: Standard I nsulation – Continue measure for eligible housing units within the modified Noise Remedy Boundary. Port intends to make last offer of sound insulation to previously-eligible units outside the modified Noise Remedy Boundary. Where feasible, the Port may include air conditioning as one element of new sound insulation installations. Measure M-1 2 : Prepare Cooperative Developm ent Agreem ents – The process should continue to address development potentials for other areas included within the recommended modified Noise Remedy Boundary. 1 6

SEA Part 1 5 0 Noise Com patibility Study Current Mitigation Measures Recom m ended to not be Carried Forw ard Measure M-2 c: Multi-Fam ily Developm ents  To be replaced with new measures M-14 and M-15. Measure M-3 / M-3 a/ M-3 b: Transaction Assistance  This measure is recommended to be withdrawn. Measure M-4 : Easem ent acquisition  Measure being discontinued. Measure M-9 : Com m unity Planners Forum  The Port participates in the Highline Forum, which continues the intent of this measure. Measure M-1 0 : Operations Review and NEM Updates  Replace with Measure P-3. 1 7

SEA Part 1 5 0 Noise Com patibility Study New Potential Mitigation Measures Measure M-1 4 : Sound insulate ow ner-occupied m ulti- fam ily units ( condom inium s) w ithin the revised noise rem edy boundary  Benefits: Measure M-2c offered sound insulation to owner- occupied multi-family units within the 70 DNL of the 1998 Noise Exposure Contour. This measure would expand the program to eligible units within the revised Noise Remedy Boundary that were not previously mitigated.  Draw backs: Program will require new funding.  Recom m endation: Recommended for inclusion in NCP 1 8

SEA Part 1 5 0 Noise Com patibility Study New Potential Mitigation Measures Measure M-1 5 : Sound insulate renter-occupied m ulti- fam ily units ( apartm ents) w ithin the revised noise rem edy boundary  Benefits: Measure M-2c offered sound insulation to owner- occupied multi-family units within the 70 DNL of the 1998 Noise Exposure Contour. This proposed measure would expand the program to include eligible renter-occupied units within the revised Noise Remedy Boundary.  Draw backs: Program will require new funding.  Recom m endation: Recommended as a pilot-project for inclusion in NCP 1 9