NASA LogoNTRSNTRS - NASA Technical Reports ServerSearchmore_vertCollectionsAboutNewsHelpLogin Back to ResultsManagement by Trajectory Trade Study of Roles and Responsibilities Between Participants and Automation ReportThis report describes a trade study of roles and responsibilities associated with the Management by Trajectory (MBT) concept. The MBT concept describes roles, responsibilities, and information and automation requirements for providing air traffic controllers and managers the ability to quickly generate, evaluate and implement changes to an aircraft's trajectory. In addition, the MBT concept describes mechanisms for imposing constraints on flight operator preferred trajectories only to the extent necessary to maintain safe and efficient traffic flows, and the concept provides a method for the exchange of trajectory information between ground automation systems and the aircraft that allows for trajectory synchronization and trajectory negotiation. The participant roles considered in this trade study include: airline dispatcher, flight crew, radar controller, traffic manager, and Air Traffic Control System Command Center (ATCSCC) traffic management specialists. The proposed allocation of roles and responsibilities was based on analysis of several use cases that were developed for this purpose as well as for walking through concept elements. The resulting allocation of roles and responsibilities reflects both increased automation capability to support many aviation functions, as well as increased flexibility to assign responsibilities to different participants - in many cases afforded by the increased automation capabilities. Note that the selection of participants to consider for allocation of each function is necessarily rooted in the current environment, in that MBT is envisioned as an evolution of the National Airspace System (NAS), and not a revolution. A key feature of the MBT allocations is a vision for the traffic management specialist to take on a greater role. This is facilitated by the vision that separation management functions, in addition to traffic management functions, will be carried out as trajectory management functions. This creates an opportunity for flexibility, allowing the traffic management specialist to carry out tasks that today can only be carried out by the controller currently in contact with the aircraft. This additional tasking for the traffic management specialist comes with requirements for workload management. An increased role for the Data-side (D-side) controller relative to the Radar-side (R-side) controller is a potential approach to mitigating workload for the traffic management specialist, as the D-side controller would have similar ability to perform separation management functions in what today might be considered the "trajectory management" timeframe. This analysis did not distinguish between the D-side and R-side controllers since in many cases the R-side controller works unassisted.Document ID20170011483Acquisition SourceLangley Research CenterDocument TypeContractor Report (CR)AuthorsFernandes, Alicia D.*(Mosaic ATM, Inc. Leesburg, VA, United States)*Kaler, Curt*(Mosaic ATM, Inc. Leesburg, VA, United States)*Leiden, Kenneth*(Mosaic ATM, Inc. Leesburg, VA, United States)*Atkins, Stephen*(Mosaic ATM, Inc. Leesburg, VA, United States)*Bell, Alan*(Systems Enginuity, Inc. Manasses, VA, United States)*Kilbourne, Todd*(Systems Enginuity, Inc. Manasses, VA, United States)*Evans, Mark*(Independent Consultant Tarpon Springs, FL)*Date AcquiredDecember 1, 2017Publication DateOctober 1, 2017Subject CategoryAircraft Stability And ControlSystems Analysis And Operations ResearchReport/Patent NumberNF1676L-27775NASA/CR-2017-219676Funding Number(s)WBS: WBS 999182.02.65.07.01CONTRACT_GRANT: NNL16AA17CDistribution LimitsPublicCopyrightPublic Use Permitted.Available DownloadsNameType20170011483.pdfSTIcloud_downloadcontent_copyvisibilityRelated RecordsThere are no records associated with this record.visibility_offNo Preview Available
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