Trajectory-Based Operations (TBO) - Joint Planning and ...
Trajectory-Based Operations (TBO) - Joint Planning and ...
Trajectory-Based Operations (TBO) - Joint Planning and ...
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<strong>Trajectory</strong>-<strong>Based</strong> <strong>Operations</strong> (<strong>TBO</strong>)<br />
Study Team Report<br />
In communications, <strong>TBO</strong> is highly dependent on ground-ground connectivity for network-centric<br />
operations <strong>and</strong> data link for negotiations, agreement, <strong>and</strong> validation of execution of any given 4DT.<br />
But one data link pipe does not represent a single solution. Because <strong>TBO</strong> communications are mostly<br />
in a strategic time frame, the urgency of connectivity is unnecessary for a majority of the transactions.<br />
The team has made several recommendations on developing the messaging content <strong>and</strong> requirements<br />
for <strong>TBO</strong> because of the urgency in getting to a set of requirements. The requirements are more about<br />
the information flows between systems than about the performance of the link.<br />
With respect to aviation security, <strong>TBO</strong> represents one of the layers of adaptive security. Intent is a<br />
powerful tool in monitoring conformance. Likewise, in flight planning there are opportunities to build<br />
in authentication, from submittal of a plan to starting the aircraft. In-flight performance puts bounds<br />
around the aircraft, <strong>and</strong> deviations from these bounds have separation consequences that must be<br />
addressed.<br />
Environmentally, <strong>TBO</strong> provides an opportunity to meet improved noise performance by more closely<br />
defining flight tracks. <strong>TBO</strong> offers savings in fuel burn, on the airport, during climb, through the use of<br />
cruise climb, <strong>and</strong> the optimized arrivals to an airport. Noise, emissions <strong>and</strong> fuel savings translate into<br />
tangible environmental benefits.<br />
Finally, The <strong>TBO</strong> Study Team recognizes that this is the start of a greater debate on the details of<br />
<strong>TBO</strong>. Our approach was to provide information on how <strong>TBO</strong> would work in the context of operational<br />
scenarios. Much work must follow. Critical in this work is the beginning of a safety case <strong>and</strong> the<br />
necessary analyses to reach decisions on fundamentally changing how aircraft are separated. This<br />
safety case is followed by the functional requirements for <strong>TBO</strong> <strong>and</strong> a significant discussion on<br />
definition of requirements for automation’s performance.<br />
<strong>Joint</strong> <strong>Planning</strong> <strong>and</strong> Development Office<br />
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