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International to the reliever airport system. The transient pilots survey indicated that approximately 18,000 additional transient operations could be diverted from Minneapolis-St Paul International to the reliever airport system. Of the 28,000 operations that will be diverted from Minneapolis-St. Paul International, these surveys indicate that approximately 24,500 operations could be absorbed by the reliever system. The remaining 3,500 operations will be diverted to other non-reliever airports in the area. The survey effort also indicated that St. Paui Downtown Airport will be the most .likely recipient of diverted operations (approximately 50 percent) due primarily to its location and airside facilities (see Fahtbit III-1). Flying Cloud will absorb 21 percent of the operations diverted from Minneapolis-St. Paul International. The other reliever airports will each receive less than 10 percent of the projected diversion. Table III-2 provides a comparison of the annual operations projected for the reliever airports in We 2008 base case scenario with the Minneapolis-St. Paul diversion scenario. Only one airport, St. Paul Downtown, will have a significant increase in its percent of capacity utilized. Diversion from Minneapolis-St. Paul International could increase detnand by slightly more than 5 percent at St. Paul Downtown. A 5 percent increase in demand would not cause a significant increase in average aircraft delay at airports using less than 60 percent of their available capacity. When the number of operations at an airport surpasses 80 percent of capacity, however, even a slight increase in demand can create a significant increase in aircraft delay. By the end of the planning period, St. Paul Downtown is projected to be operating at 93 percent of its capacity without diversion. The impact of additional operations on average aircraft delay is identified in the aircraft delay analysis. By 2008, the reliever system's total operational demand is projected to reach almost 74 percent of capaaty, including diversion from Minneapolis-St. Paul International. While the actual increase in operations at the reliever airports is not III-7