WA System Plan Chapter 9

Washington Aviation System Plan, July 1, 2009 Page 169 CHAPTER 9: ALTERNATE AIRPORTS ASSESSMENT Background and Purpose During Phase II of LATS, forecast levels of 2030 activity at individual Washington State airports were compared to airport capacity to determine those airports where a shortfall in available capacity might exist. The analysis was performed using several capacity measures including operational (or airfield) capacity, passenger/terminal capacity, aircraft storage capacity, and air cargo capacity. Approximately 24 airports across the state are forecast to approach or exceed 100% of their available capacity in one or more areas by the 2030 planning year. The Aviation Planning Council has expressed a policy preference to utilize existing system capacity to accommodate future demand before considering the development of new commercial or general aviation airports. A primary objective of the State is to ensure that suitable alternate airports are available to accommodate “spill-over” demand from airports that reach their capacity limits and cannot be expanded. The analysis focuses on the individual airports where capacity shortfalls are anticipated by 2030, and examines potential opportunities for alternate airports to accommodate this excess demand. It is important to understand that this analysis represents a first-level screening of potential alternate airports. Depending on the type and level of new activity that might shift from a constrained airport to a surrounding, alternate airport, significant additional analyses and public process may be required, potentially including environmental impact analysis. It should be recognized that the ultimate distribution of both commercial and general aviation activity at…
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