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AIRPORT MASTER PLAN <br /> <br />Taxiway Alternative #1 <br />Taxiway Alternative #1 focused on establishing a partial parallel taxiway for Runway <br />17/35 since itis being developed as the primary runway for the San Marcos <br />Regional Airport and the existing taxiway infrastructure associated with the runway <br />is minimal. Due to the decommissioning of Runway 8/26, it was identified that <br />Taxiway Alpha and Juliet at the approach end of Runway 8 could be closed to open <br />additional area for aeronautical development between Taxiway Juliet and Taxiway <br />Alpha. The closure of Runway 8/26 also resolves a number of non-compliant <br />taxiway configuration conditions identified in the Facility Requirements Chapter. <br />A significant objective in the development of all taxiway alternatives was to reduce <br />taxi times to/from the approach end of Runway 17. As a result, a taxi distance <br />analysis was completed to determine how Taxiway Alternative #1 would impact taxi <br />distances for aircraft located at various points along the main ramp. It should be <br />noted that the taxi distance analysis for alternatives #1 and #2 are identical. The <br />results of the analysis are shown in Table 5-2. <br />TABLE 5-2 <br />TAXI DISTANCE ANALYSIS TAXIWAY ALTERNATIVES #1 AND #2 <br />SAN MARCOS REGIONAL AIRPORT <br />Berry FBO (Western ATCT Area (Central CAF Area (Southeast Total Taxi Distance <br />Portion of Main Ramp) Portion of Main Portion of Main from All Areas in <br />in Linear ft.Ramp) in Linear ft.Ramp) in Linear ft.Linear ft. <br />Taxi Distance to <br />Runway 17 ApproachCurrentFutureDiffCurrentFutureDiffCurrentFutureDiffCurrentFutureDiff <br />Alternative 1 and 2 8,80010,400-1,600 8,5007,728 772 10,2006,896 3,304 27,50025,024 2,476 <br /> Routing - A, B, C, J, New D, Routing - A, C, E, New Routing - C, E, New D, <br />Shortest Route <br />New MD, New MNew M <br /> <br />Source:Garver, 2019 <br />In general, the results of the analysis show that the alternative will reduce the taxi <br />distances for aircraft located on the central and southeastern portions of the main <br />ramp. Taxi distances for aircraft located on the western portion of the main ramp <br />will increase. <br />In summary, this alternative includes the following improvements: <br /> Establishment of a partial parallel taxiway for Runway 17/35 to reduce ROT <br />and reduce taxi distances to the approach end of Runway 17. <br /> <br />Alternatives Chapter Page 20 of 60 <br />October 2020 <br /> <br />