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Joint AEEC Data Link (DLK) Systems Subcommittee RTCA SC-214 VDLSG/EUROCAE WG92 July 24 - 26, 2012

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Joint AEEC Data Link (DLK) Systems Subcommittee RTCA SC-214 VDLSG/EUROCAE WG92 July 24 - 26, 2012 Miami, FLA. FAA Data Communications Program Status (Presented by: Peter Muraca, FAA). Agenda. Program Final Investment Decision (May 2012) Program Lifecycle Decision Approved

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Joint AEEC Data Link (DLK) Systems Subcommittee


July 24 - 26, 2012

Miami, FLA


Data Communications Program


(Presented by: Peter Muraca, FAA)


Program Final Investment Decision (May 2012)

Program Lifecycle

Decision Approved

Program Overview and Status


Data Comm System Elements

Services Roadmap

Target Equipage

Program Approach

Recent Activities

Segment 1 Phase 1 - Milestones

Next Steps


program lifecycle
Program lifecycle

Near Term


DCIS Contract Award (Planned for Q4 FY12)














Tower automation IOC 2016

(Seg 1 Phase 1)

En-Route automation IOC 2019

(Seg 1 Phase 2)

Segment 2 IOC 2025 (ATN)

  • Complete Service Level Agreements
  • Complete Safety Assessments
  • Complete Initial Requirement Documents
  • Complete Initial Cost Benefit Analysis
  • Complete JRC 2A, Initial Investment Decision
  • Develop Specifications (Sys Eng)
  • Human Factors HITLS
  • Standards Development
  • Develop and Release SIR(s)
  • Receive and Evaluate proposals
  • Finalize Business Case Analyses
  • Contract Award


decision approved
Decision Approved
  • Final Investment Decision to implement Departure Clearance (DCL) service to accommodate FANS aircraft (S1P1) – May 2012
    • Award the Data Comm Integrated Services (DCIS) contract
    • Award the ERAM contract modification supporting DCL service
    • Approve initial 35 sites with positive NPV + 6 add’l sites based on other considerations equaling 41 total
    • Conditionally approve the remaining 16 sites with the program returning to the JRC in FY13 to provide updated cost and operational data
  • Endorse moving forward with development of En Route services (S1P2)
Seamless Uplink of Flow Initiatives / TFM Reroutes – “Go” Button

Comm Transfer Workload Reduction

Aircraft Fuel Savings

Ground Delay Savings

  • Direct Reroutes
  • Crossing Restrictions
  • Tailored Arrivals
  • Revised Departure Clearance
  • Airport Information
  • Flow Initiatives


Increased Safety – Reduced Operational Errors

En Route Delay Savings and Increased Controller Productivity

  • More Efficient Delivery of Clearances
  • Allows Uplink of More Complex Clearances
  • En Route Notifications
  • Provides two-way data between controllers, automation and flight crews
  • Safety-of-flight air traffic control (ATC) clearances, instructions, traffic flow management, flight crew requests and reports
  • Automation enhancements for ATC message generation and exchange


program strategy
Program Strategy

Initial deployment of Tower DCL service via FANS 1/A+

Trials exercise operational procedures prior to live services

Leverages existing equipage and continues to build equipage base through financial incentive

Delivers ground system infrastructure for future services

Grow service offerings in En Route

Automate routine, repetitive activities (e.g., Transfer of Communications and Altimeter Settings) allowing controllers time to provide advanced services

Airborne reroutes for direct benefit to operators

Provides platform to enable future NextGen operations


Data Comm System Elements

  • Ground Infrastructure - FAA
    • Tower Data Link Service (TDLS)
    • En Route Automation Modernization (ERAM)
    • FAA Telecommunications Infrastructure (FTI)
  • Uplink/Downlink Infrastructure - FAA
    • Data Comm Integrated Services (DCIS/DCNS)
  • Aircraft Upgrades – Airlines
    • FANS 1/A+ over VDL-2, later adding ATN B2

Phase 1

Phase 1 & 2

Phase 2

  • National Sites
  • ZLC and ZTL

Services Roadmap

CY 14 16 18 20 22 24 26 28 30

Segment 1 Phase 1

- Tower Service



Tower IOC

Departure Clearances (DCL)

Segment 1 Phase 2

- En Route Services

Transfer of Communications

Initial Check-In

Altitudes / Altimeter Settings

Go Button / Airborne Reroutes

Tailored Arrivals

Controller Initiated Routes


Crossing Restrictions

Advisory Messages

Speed and Headings

Beacon Codes

Stuck Microphone

Data Comm Routine


En Route IOC

Initial En Route Services

TFM Data Comm

Tailored Arrivals


Full En Route Services

Data Comm Routine


FANS 1/A+ over VDL-2 transitioning to ATN



Ground System


Segment 2

- Advanced Services

4D Trajectories


target equipage
Target Equipage

Initial service will be deployed with Future Air Navigation System (FANS) 1/A+ avionics

Integrated avionics package functionality supports deployment of all Segment 1 Tower and En Route services

In operation in the NAS and Ocean today

Additional ground system stack will be deployed to extended service to Aeronautical Telecommunications Network (ATN) avionics projected for 2020s timeframe

ATN deployment limited by budget and ground automation software development bandwidth

ATN Baseline 2 will allow advanced NextGen operations such as Trajectory Based Operations, Conformance Management, etc.

ATN Baseline 2 standards are in the process of being finalized by joint US-European committee

Air-ground network will be VHF Data Link (VDL) Mode 2

Program investigating accommodating VDL Mode 0 radios for Tower Revised Departure Clearance (DCL) service

Part of Tower trials is to determine if VDL Mode 0 can meet operational requirements for DCL

recent activities
Recent Activities

Completed RTCA SC-214 / EUROCAE WG-78 ATS Interoperability (version h) validation at FAA Tech Center

Prototype ATN SC-214/EUROCAE WG-78 avionics developed by Rockwell, Honeywell and Thales

Delivered Final Interop Validation report to SC-214 / WG-78

PTRs managed via the Configuration Sub Group (CSG)

Accepted PTRs with its recommendations/resolutions are now part of Version J docs (standards)

Developed and demonstrated prototype Computer Human Interface (CHI) to Tower controllers

NATCA controllers got hands on experience at four towers

Provided helpful feedback and positive comments

Prototype Avionics


recent activities cont
Recent Activities (cont.)

Completed requirements and systems engineering documentation

  • TDLS-ERAM Interface Requirement Document (IRD)
  • DCNS – PGW Front End Processor (FEP) IRD
  • DCNS – Remote Monitoring and Logging System (RMLS) IRD
  • DCM FEP to DCNS Monitoring IRD
  • National Airspace System (NAS) Data Comm Applications System (AS) to DCGS BEP IRD
  • BEP to FEP IRD
  • En Route System Specification Document (SSD)
  • Protocol Gateway (PGW) Front End Processor (FEP) SSD
  • Data Comm Network System (DCNS) Specification Document
  • Data Comm Monitoring (DCM) Back End Processor (BEP) SSD
  • Data Comm Ground System (DCGS) BEP SSD
  • Tower SSD
  • ERAM to TDLS Physical IRD
  • Began engineering design reviews for DCL
    • Tower system enhancements to support FANS 1/A+ avionics
    • ERAM log on capability
    • Security Protocol Gateway (PGW)



Data Comm Implementation Team (DCIT) established Jan 2011

Members include multiple operators, FAA reps, automation system manufacturers, research organizations, NATCA, Communication Service Providers, avionics manufacturers, aircraft manufacturers, as well as support contractors

Working Groups for DCIT Management, AOC, Flight Deck, and Systems Integration

~100 active participants either in person or via WEBEX meetings

Trials focus currently on Departure Clearance (DCL)

Objective is to verify and validate Air and Ground CONOPs, Requirements, Training, and Human Factors with feedback loop to TDLS / Flight Deck efforts

En Route trials planned with same goal, feedback to ERAM development

Three trials sites and leading partners are: Memphis/FedEx, Newark/United-Continental, Atlanta/Delta

MOUs in process to include Union participation

Additional sites possible, as necessary

Recent Activities (cont.)

next steps
Next Steps

Continuing air-ground network acquisition and ground systems development

Complete proposal evaluation and source selection for Data Comm Integrated Services (DCIS)

Conduct proposal evaluation and negotiation for En Route Automation Modernization (ERAM) enhancements

Technical reviews for ground system automation enhancements

Fielding of DCL Trials System to current known sites

Continuing engagement with internal and external stakeholder community


Segment 1 Initial Tower Service

  • Revised Departure Clearances (DCL) including revisions transmitted to the aircraft on the ground
    • Enables full route clearances and revisions
    • Exploits Future Air Navigation Systems (FANS) avionics found in newer aircraft
    • Will not impact existing pre-departure clearance (PDC) services
  • Will be delivered via FANS 1/A+ over VDL-2
    • Initiate field trials in 2012



Segment 1 En Route Services

  • Transfer of Communications (TOC) Service and Initial Check-in (IC) Service
    • Enables controllers to handle traffic more strategically
    • Capacity increase of 15%-21% depending upon altitude
    • Basic capability with minimal overrides - use voice for special cases
    • Enhance later to handle special cases
  • Will be delivered via FANS 1/A+ over VDL-2



Segment 1 En Route Services

  • “Go Button”
    • Leverages Traffic Flow Management (TFM) program for more direct reroutes
    • Enables quicker recovery from bad weather or other Traffic Management Advisory situations
    • Required for full realization of capabilities and benefits from TFM
  • Pilot Initiated Downlink – Request for direct-to-fix
    • More direct routes quickly and easily negotiated between controller and pilot
    • Reduces flight times and distance
    • Benefit of shortcutting to save fuel
    • Airlines have indicated this is a significant operational benefit



Segment 1 En Route Services

  • Controller initiated direct-to-fix and controller response to this pilot request for direct-to-fix
    • Enables controllers to effectively handle more traffic
    • More efficient use of the whole controller team
  • Crossing Restrictions and Altimeter Setting (AS) Service
    • Reduces burden of repetitive tasks on the controller
    • Cross Fix at Altitude
    • Cross Fix at Altitude and Speed
  • All Data Comm Services increase Safety by reducing Hear-Back/Read-Back errors



Segment 2 Advanced Services

  • Trajectory Based Operations in Performance Based Airspace, providing conflict-free flight with stable aircraft routing
  • Conformance Management to ensure aircraft compliance with trajectory
  • Optimized Profile Descents and time-based metering
  • NAS Airport status, delays and constraints, hazardous weather uplinked to the aircrew
  • Taxi-in / Taxi-out service provides taxi routes for aircraft to follow from the gate to the runway