appendix b aviation activity forecasts 1 purpose and context as a part of the faa s ongoing national airspace redesign nar effort midwest plan map study is investigating various alternative designs for air traffic routes in st louis metropolitan surrounding areas order to thoroughly evaluate these alternatives meet nepa requirements it necessary conduct both operational environmental modeling future baseline conditions well each key element development accurate forecasting levels expected area at airports interest thus was undertaken ensure that most up date estimates were used analysis ultimate accuracy any affected by many factors some include quality availability data distance into projections stability item being forecast even casual observer clear industry has been state flux since 2001 consequently valuable start process
