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AIRPORT MASTER PLAN <br />As Table 4-16 indicates, all the taxiways at the San Marcos Regional Airport <br />required based on ADG III standards. An analysis was completed to determine if the <br />existing taxiways at the airport could meeting ADG III TSA and TOFA standards <br />without any substantial improvements/modifications. The results of the analysis <br />showed that the San Marcos Regional Airport will not need to make any TSA or <br />TOFA improvements to meet ADG III dimensional standards if the critical aircraft for <br />the airport moves into the ADG III category. <br />T AXIWAY W EIGHT B EARING C APACITY <br />As discussed in the Runway Strength section, the MTOW of the aircraft using the <br />Airport is expected to increase during the forecast period, so improvements to <br />taxiway pavement strength may need to be considered as well. <br />T AXIWAY C ONFIGURATION R EVIEW <br />Based on research, the FAA has identified a number of taxiway configurationsthat <br />have been shown to cause pilot confusion, which can lead to safety issues such as <br />runway incursions and incorrect runway departures. <br />Currently, the San Marcos Regional Airport has seven existing taxiway <br />configurations that are not recommended by the FAA. Each of the seven areas and <br />the configuration concern are identified later in this section. <br />Additionally, the intersection of Taxiway Foxtrot and the approach end of Runway <br />31and Runway 35, as well as the intersection of Runway 8/26 and Runway 17/35, <br />are hot spots <br />runway incursions based on historical information. <br /> Location #1 - Taxiway Alpha intersection with Runway 8 approach end <br />o Direct access from apron to runway without a turn <br />o Runway/taxiway intersection is not at a 90-degree angle <br />o Shown in Figure 4-9 <br /> Location #2 - Taxiway Bravo intersection with Runway 8/26 <br />o Direct access from apron to runway without a turn <br />o High energy intersection (middle 1/3 of runway) <br />Facility Requirements Chapter Page 39 of 70 <br />October 2020 <br /> <br />