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	+ Home Search Aviation Systems		11.06.07 Division Highlights Contents 3D-Path Arrival Management Collaborative research partnership on queuing theory for air traffic management NASA/FAA/Eurocontrol Participation in the Third Surface Management Workshop Validation software created to improve aircraft trajectory predictions Visit By Naval Air Systems Command (NAVAIR) 3D-Path Arrival Management: The FAA tentatively selected Denver Center as the field site for a demonstration of 3D-Path Arrival Management (3D-PAM) at the end of FY09. This FAA/industry led activity will use NASA's predictive ground-based trajectory automation - represented by the En Route Descent Advisor (EDA) - to generate conflict-free, time-based metering solutions for maximum arrival throughput and efficiency under heavy traffic conditions. The field evaluation at Denver has been endorsed by the FAA and is a key element of the JPDO's NextGen demonstration portfolio. Data gathered from the field demonstration and associated simulation experiments will be used by the FAA as a basis for a "JRC-2A" decision in FY12, which will govern plans for full-scale deployment of EDA in the National Airspace System. + Back to Top Collaborative research partnership on queuing theory for air traffic management: Research began on queuing theory applications for air traffic management. Two teams, composed of academia and industry partners, will work with NASA on two efforts. The first, which includes researchers from Optimal Synthesis, Inc. and the University of Texas at Arlington, will develop models of trajectory uncertainty for existing queuing models. The second, composed of researchers from the University of California at Berkeley, the University of Maryland, Intelligent Automation Inc., and the Massachusetts Institute of Technology, will develop new queuing models to capture the time-varying, stochastic nature of capacity and demand. The two efforts will contribute to study of the effects of uncertainty and precision on queuing delays. + Back to Top NASA/FAA/Eurocontrol Participation in the Third Surface Management Workshop: The Third Surface Management Workshop was held at NASA Ames Research Center (October 30 - November 1). The goal was to share research methods and results and to look for collaboration opportunities in surface management and collaborative decision-making (CDM) research. FAA/Eurocontrol Action Plan 21 (Advanced Surface Movement Guidance and Control System and Collaborative Decision-Making) sponsored the workshop. Approximately 50 participants (from NASA Ames and NASA Langley, Eurocontrol, the FAA, the German Aerospace Center, the National Aerospace Laboratory of the Netherlands, the European Commission, airlines, and academia) contributed. Topics included surface optimization, performance metrics of surface research and CDM, surface modeling techniques, environmental assessments, and simulation results from surface research. US and European researchers agreed to develop a common set of surface performance metrics that can be shared as they conduct their future research efforts. + Back to Top Validation software created to improve aircraft trajectory predictions: NASA Ames Research Center has created software that is built into an Air Traffic Management research tool called the Center TRACON Automation System (CTAS). This software gives CTAS developers a common view of predicted aircraft airspeed and altitudes plotted over time resulting in more rapid turnaround of changes to the CTAS trajectory predictor. Aircraft predictions are used for conflict detection and scheduling. This software can also be used to check prediction data in a soon to be completed CTAS trajectory archive. + Back to Top Visit By Naval Air Systems Command (NAVAIR): The Chief of the NAVAIR Aeromechanics Division at Patuxent River and several of his branch chiefs visited Ames' Simulation Laboratories. The purpose of the visit was to review Ames' simulation capabilities and discuss future collaboration. They were impressed with the Ames facilities, particularly the motion and visual fidelity of the Vertical Motion Simulator. They expressed their intention to designate Ames' Simulation Laboratories as a NASA facility that was critical to the Navy mission. Areas for collaborative research include shipboard landing simulation and fixed-wing aircraft upset recognition and recovery. The latter is of particular concern in the acquisition of the Navy P-8 Multimission Maritime Aircraft to replace the P-3 Orion fleet. + Back to Top
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