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Technical Paper

Airport, Airspace, and NAS System Capacity Studies

“As we handle more operations and passengers in the air, we must make certain we have the capacity to handle increased traffic on the ground.” - Jane Garvey, FAA Administrator (4/20/98) The FAA Technical Center (Aviation System Analysis and Modeling Branch, ACT-520) has been responsive to the FAA Airport Capacity Program customers for the past 22 years, developing, testing, and applying airfield and airspace simulation models. More than 90 capacity studies have been completed with ACT-520 personnel contributing their technical expertise to the Airport Design Teams. The teams are comprised of FAA personnel, airport operators, air carriers, other airport users and aviation industry representatives at major airports throughout the US. Initial studies focused on modeling airport operations from final approach, taxi, gate operations and departure processing. Later in the program, local airspace studies were included in some airport study efforts.
Technical Paper

Area Navigation in the Common System

Area navigation offers a means of establishing an air route system without the constraints entailed in flying toward or away from the signal source. In terminal areas, an area navigation system of routes, combined with ATC computer-aided sequencing and airborne collision-avoidance technology, offers possibilities for establishing future methods of moving high volumes of traffic on and off a complex of multiple parallel runways. Such a system would reduce air-ground communications and controller workloads which are serious limiting factors in today's system. In the en route system, the use of area navigation will result in more efficient utilization of airspace, although regimentation of traffic will continue to be necessary in areas of high traffic density. An area navigation system, based on VOR/DME inputs is possible in the near future.
Technical Paper

The Current and Future Basis for Aircraft Air Pollution Control

The present regulatory tool for assessment of aircraft smoke emission, the Ringelmann Chart, is described; some of the shortcomings associated with its use for aircraft are discussed; research and development efforts to improve on this system are described. The gaseous pollutants, their relative importance in an airport area and research underway or needed is also discussed.