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AIRPORT DEVELOPMENT ALTERNATIVES DEVELOPMENT ALTERNATIVES With an ultimate land use pattern vision in place, alternatives brought forward throughout this process should work toward incrementally and strategically achieving that ultimate vision. Analysis began with airfield alternatives, the primary leading element, and moved into the passenger terminal building as the secondary leading element, followed by the terminal apron system, the landside/roadway system, and aviation support facilities, all of which are trailing elements. Airfield Design The airfield is the leading element in airport planning as it is highly dictated by terrain, predominant wind patterns, and the aircraft fleet mix which it serves. Additionally, airfield design is guided by defined FAA standards, guidance, and best practices which support its role as the primary leading planning element. The Eugene Airport runways are well designed to service the unique mix of aircraft which use them and are the driving factor for designing the supporting taxiway configuration. The following sections briefly review key issues for the airfield system, propose a conceptual solution to meet current/future needs based on FAA design standards and industry best practices, and analyze each option against established evaluation criteria. 4.5.1.1 Key Issues and Items for Consideration The facility requirements analysis identified airfield facilities which were deficient in meeting PAL 3 demand. The following airfield facilities require the development of alternative concepts: » Runways Runway system, as it exists, meets the needs over the planning period RPZ intrusions to Runway 16L and 16R require resolution to meet FAA guidance » Taxiways Major improvements are needed to simplify the airport taxiway system to improve pilot orientation, bring it up to modern FAA design standards, eliminate unnecessary maintenance-intensive pavements, and address inefficient locations for taxiway connections to Runway 16R-34L » Hotspot at Taxiway A-A8-A9 A8 bypass taxiway connector slated for removal (Summer 2017) The most critical leading element for the airfield is the runway system. The runway system at Eugene Airport is a parallel configuration separated by 4,300 feet allowing enough capacity for aircraft operations beyond the planning period forecast activity levels. Facility requirements analysis supported preserving and maintaining both runways to their current design standards without a need for extensions over the planning period, however, land at each runway end should continue to be held for extensions which may be required beyond this planning period. The two runways at EUG have predominantly distinctive user groups; wherein, the east runway is largely used by general aviation pilots and the west runway is the primary runway for commercial carriers. Hangar development over the last decade has been generally located near the runway that best serves the users of the new hangar. The adjacencies of users to these runways must be considered when developing and analyzing alternatives. Alternative options are also presented to address the RPZ impacts at the Runways 16R and 16L ends. EUGENE AIRPORT MASTER PLAN 4-12