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• , <br /> ' • <br /> - - <br /> 1 <br /> M . Jim Pollaty • <br /> Orange County Planning Dept. 139 <br /> 106 E. Margaret Lane 473" <br /> Hillsborough, NC <br /> Dear Mr. Pollaty: <br /> Per the request of Rick Cannity on June 29, I am pleased to <br /> provide the following information with respect to aircraft <br /> operations and ground traffic expected at the Midway Airport. <br /> 1 AIRCRAFT OPERATIONS <br /> The projection of .aircraft operations is a highly inexact art <br /> dependent upon a number of factors unique to each airport. <br /> FAA generally recommends consideration of 500 to 1000 annual <br /> operations (an operation is a takeoff or a landing) per aircraft <br /> permanently based at the airport, with an average of 750 used <br /> for preliminary review. This figure is inclusive of all _ <br /> operations including transient traffic. <br /> In North Carolina, we find that actual annual operations per <br /> based aircraft at the at public general aviation airports range <br /> from a low of 131 at Lexington to a high of 1737 at Wilson. <br /> The average is approximately 850. Lee Mehler.has indicated <br /> that he would use the current figure for Horace Williams <br /> Airport, which is 500 annual operations per based aircraft <br /> (25,000 operations 50 based aircraft = 500) . Mr. Mehler <br /> believes the local airport use is indicative of future use <br /> of Midway Airport. I agree with him that a figure of 500 <br /> operations appears reasonable for planning use. <br /> Highway Traffic Generated: <br /> We have discussed with our Division of Highways the figures <br /> they would use to estimate generated highway traffic. They <br /> Mr. Jim Pollaty <br /> June 30, 1982 <br /> Page 2 <br /> use two different figures depending upon their analysis of <br /> potential airport use. One figure is that each aircraft <br /> operation would generate 2.5 one-way highway trips. The other <br /> figure is that each based aircraft would generate 5.8 daily <br /> one-way highway trips: --Calculations for Midway Airport result _ <br /> in the folowing figures. <br /> A. Based on Operations <br /> 500 annual ops/based aircraft x 276 based aircraft <br /> = 138,000 annual ops. ; 138,000 annual ops x 2.5 high- <br /> way .trips/op = 345,000 annual vehicle trips; 345,000 <br /> annual vehicle trips 365 days = 945 vehicle trips <br /> per day: <br /> B. Based on Based Aircraft <br /> 276 based aircraft x 5.8 highway trips = 1600 vehicle <br /> trips per day <br /> We understand that the Division of Highways is most comfortable <br /> with figures based upon annual operations. Thus, we tend to <br /> accept the 945 vehicle trips per day as being the most appropriate <br /> foi-this study. <br /> This concludes our comments. Please advise if we can be of <br /> further assistance- <br /> -- <br />