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capacity (ASV). Runway and taxiway improvements at Lake Elmo aze also included in Alternative 7. Exhtbit IV 10 illustrates the development recommended in Alternative 7. 1. System Diversion With the increase in operational capaaty provided by a pazallel nmway and control tower at Anoka County-Blaine, only 43 based aircraft would need to be diverted from Anoka County-Blaine to decrease demand to 80 percent of capacity. If its facilities were improved and expanded to accommodate the diverted aircraft, the most likely reapieat of this diversion would be Gateway North Industrial Diversion of 55 aircraft fiom St. Paul Downtown to Lake Elmo is also anticipated to reduce congestion. 2. Operational Demand Anoka County-Blaine Airport needs to divert 43 based aircraft to reach a demand level equal to 80 percent of ASV. This, of course, assumes the implementation of a parallel runway and a control tower at the airport. With improved facilities, Gateway North Industrial can accommodate these diverted aircraft and still have surplus storage and operational capacity. An estimated 29,000 annual operations would be associated with the diversion of 43 aircraft to Gateway North Industrial With this diversion and the addition of a parallel rumvay and tower, Anoka County-Blaine would be operating at 80 percent of its annual capacity. Gateway North Industrial would be operating at approximately 34 percent of its annual capacity by the end of the planning period with diversion from Anoka County-Blaine and the growth projected in its master plan. With the addition of Gateway North Industrial to the reliever system and improvement in the operational capacity at Anoka County-Blaine, total operational demand for the system would reach 65 percent of its capacity by the end of the planning period. The projected number of annual operations as a percentage of ASV for each of the relievers in Alternative 7 is presented in Table IV-10. IV-40