TagAirspace Study(13)

Technical analysis of airspace interactions between Sea-Tac Airport and Boeing Field, examining runway capacity models, aircraft delay calculations, and the effects of airspace interactions on airport operations. The document presents detailed capacity and delay calculations using computerized models.

Letter from Rosemary Zeutschel criticizing the Port of Seattle’s inadequate public involvement process for the Sea-Tac/Boeing Field Airspace Study, arguing that insufficient time was provided for community organizations to review technical documents and provide meaningful input.

You have been included on our distribution list for the Airspace Study Newsletter either because of your membership in an organization which is aviation-related or because of your interest in aviation planning in the Puget Sound region. The Port of Seattle and King County are looking at the use of airspace around Sea-Tac International Airport (Sea-Tac) and its neighboring airport, King County International Airport (Boeing Field). Key study questions are: where are there overlapping aircraft traffic patterns which are also called airspace interactions, how often do airspace inter- actions occur and what are their impacts on aircraft trip time and the flow of aircraft traffic to and from Sea-Tac and Boeing Field? As the respective operators of Sea-Tac and Boeing Field, the Port of Seattle and King County are interested in providing airport facilities and services to airport users without creating undue congestion or delays. If existing or poten- tial congestion or delays are identified, measures· to lessen them are considered whenever possible. Airspace interac- tions between Sea-Tac and Boeing Field are a source of con- gestion and delays. Numerous Air Traffic Control facilities and procedures have been established to minimize these inter- actions. However, under certain weather conditions, over- lapping traffic patterns severely restrict the number of aircraft that can land and take off at Sea-Tac and Boeing Field, thereby creating delays. And as demands increase for use at Sea-Tac and Boeing Field, so do delays. What's happening now? How 1s the general public involved? What next? We have…

FORECASTS OF PEAK HOUR AND ANNUAL AIRCRAFT OPERATIONS BY AIRCRAFT CLASSIFICATION SEA-TAC INTERNATIONAL AIRPORT: 1980-2000 Peak hour 1 averase da~ 1 Eeak month Annual Aircraft Classifications VFR oEerations IFR conditions OEerations 1980** 1985 1990 2000 1980** 1985 1990 2000 1980** 1985 1990 2000 Air Carrier/Air Taxi Class* A B 13 11 11 12 13 11 11 12 51,611 42,090 44,730 54,830 c 26 23 22 19 26 23 22 19 100,472 85,210 87.010 80,750 D 8 13 15 20 8 13 15 20 31 1615 47 1 130 54 1310 83 900 Total 4'f 4'f ""48 51 4'f 4'f ""48 51 183,698 174,430 186,050 218,870 General Aviation-Itinerant Class* A 2 2 2 2 2 1 1 2 9,139 9,370 10,270 10,850 B 4 4 4 5 3 3 3 3 14,400- 15,240 17,110 21,710 c 1 1 1 1 1 1 1 3,323 3,810 4,240 6,430 D Rotorcraft 831 880 980 1 1210 Total -7 -7 -7 8 -5 -5 -5 -6 27,693 29,300 32,600 40,200 General Aviation-Local Class* A 166 150 140 120 B 420 330 330 280 c 818 660 540 380 D 258 360 390 420 Total 0 -0 -0 0 0 0 0 0 1,662 -"T,Soo -r;4<io 1,200 Military Class* A B c 367 370 370 370 D Rotorcraft 184 180 180 180 Total 0 0 0 0 0 0 0 0 551 550 --sso 550 .!2!.!!. 54 54 55 59 52 52 53 57 213,604 205,780 220,600 260,820 *Aircraft classifications defined in Exhibit 1. **1980…

Port of Seattle memorandum announcing the second Airspace Study Advisory Committee meeting scheduled for February 24, 1982. The agenda includes aviation demand forecasts for Sea-Tac and Boeing Field, discussion of airfield and airspace capacities, and aircraft delays.

FAA Northwest Region letter to Port of Seattle providing review comments on the second draft forecast of aviation demand for Boeing Field (BFI) proposed for use in the SEA/BFI Airspace Study. Comments focus on aircraft mix data requirements, forecast assumptions, and the need for high and low forecast ranges.

Meeting minutes from the Airspace Study Advisory Committee discussing the study of airspace interaction between Sea-Tac Airport and Boeing Field. The committee reviewed the study’s purpose, organization, scope, and schedule, with presentations on air traffic control and local airspace structure.

Meeting agenda for the Airspace Study Advisory Committee hosted by the Port of Seattle. The meeting covers study background, scope of work, air traffic control and airspace structure, and progress updates on GA Survey and BFI control tower survey.

Letter from Port of Seattle inviting Jean Pihlman of Zone III Committee to participate in an Advisory Committee for the Sea-Tac/Boeing Field Airspace Study. The study will address impacts on airport capacity from shared airspace usage between the two airports.