Segment One data communications capabilities will be expanded to include implementation of agreements in performance-based airspace where the predictability of the user’s 4-D trajectory over some future time frame is agreed to be stable and will only change for exceptions.
Segment Two also adds trajectory conformance management to monitor the trajectory agreements in performance-based airspace. The aircraft’s capability to accurately fly its cleared route of flight and improvements in conformance predictability, either through ground automation improvements or through the provision of aircraft intent data, will increase the precision of trajectory modeling or enable new concepts in separation assurance.
Terminal architecture in Segment 2 is limited to a single alternative. Tower functionality remains similar to segment 1 functionality while TRACON functionality is limited to the TRACON. TRACON functionality is very high level since further research and TRACON automation architecture details are developed by terminal operators and systems architects.
Segment Three (2022-2027)
In addition to Segment Two capabilities, Segment Three will add data communications capability that will support delegation of separation responsibility to the flight crew, common use of trajectory agreements, and data communications guidance for zero visibility surface operations.
Research is being conducted on wake-vortex footprint broadcasts to support reduced separation enabling higher density operations. Rulemaking will expand the volume of performance-based airspace to a much larger vertical and lateral area encompassing preferential departure and arrival airspace.
Model Documentation
The Functional Model documents the Functional Architecture for the Data Communication System (DCS). It includes architectural diagrams, interactions, notes and references to related action items (TODOs) and assumptions (ASUMs).
The DCS will provide data communication connectivity and functionality between ground and airborne users. The DCS will be implemented in three incremental segments. Diagrams, functions and interdependencies that are applicable in a particular segment are labeled with [Sx] where 'x' indicates the applicable segment (1,2 or 3). Diagrams, functions and interdependencies that are applicable for all three segments do not have a segment label.
In general, functional interdependencies and/or data flows are shown only for DCS related activities.
Functional Architecture (Summary View) - (CompositeStructure diagram)
Created By: on 5/12/2006
Last Modified: 2/3/2007
Version: 1.0. False
GUID: {99F2E373-6B19-4082-9252-D41F2F40F77A}
Figure: 1
Functional Architecture (Detailed View) - (CompositeStructure diagram)
Created By: on 5/4/2006
Last Modified: 2/3/2007
Version: 1.0. False
GUID: {C687B209-1ADC-4bd0-B832-901DE1BF9A21}
Figure: 2
1.0 Ground User Interface (GUI)
Type: Package
Status: Proposed. Version . Phase 1.0.
Package: Functional Model
Detail: Created on 9/29/2006 4:12:48 PM. Last modified on 9/29/2006 4:12:48 PM
GUID: {6951BF9D-6EC2-45e2-8784-3EEB64C41EA4}
1.0 Ground User Interface (GUI)
Type: Object
Status: Proposed. Version 1.0. Phase 1.0.
Package: 1.0 Ground User Interface (GUI) Keywords:
Detail: Created on 5/4/2006. Last modified on.9/28/2006.
GUID: {65D98F56-4E8C-414d-9F5D-1AD9C8503FBE}
This function supports the human interface with the ground data processing functions. It supports the acceptances of user commands and displays system information. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：Functional Architecture for the Data Communication System(4)
