AIDC safety benefits & limitations AIDC Implementation Seminar 28 th – 31 st October 2014 Adam Watkin Airservices Australia

Introduction  Implementation of AIDC  Safety benefits  Data adaptation issues to consider  Limitations Presentation title

Safety benefits  Coordination errors - reduced  Coordinated data should be extracted automatically from flight data processing system  Coordination should occur automatically  Controller workload - reduced  Less reliance on intercom/phone lines  More time available to complete other tasks  Efficiency - increased  Controller can manage increased traffic levels  Support DARPs etc

Considerations – Adaptation data  What AIDC messages to send?  ABI, EST/ACP; or  ABI, CPL/ACP  What about ICD V3 messages such as TRU, FAN, FCN etc  Coordinating changes  CDN; or  Voice  Will AIDC hand offs be used?

Considerations – Adaptation data  When are AIDC messages sent?  Timing parameters  When does automation send AIDC messages?

Considerations – Adaptation data  Format of Field 14 (Estimate data) supported by neighbouring ATS Units  Block levels  Weather deviations and offsets  Mach Number Technique  Needs to be configurable per FIR

Considerations – Adaptation data  Content of Field 15 (Route) required by neighbouring ATS Units  full flight planned route; or  route information to commence at the waypoint preceding the coordination point  Should be configurable per FIR

Limitations  A benefit of AIDC is it’s automation. However, this can also be a disadvantage!  Controller is “out of the loop”  What information was coordinated?  Unintentional changes to profile (e.g. level) after coordination has occurred  Automatic updates to profile (e.g. estimates) without controller awareness (e.g. ADS-C estimate updates)

Limitations  Processing AIDC messaging for short term FIR transits ATSU 2 ATSU 1 MINNY DONLD  Problems occur when ATSU2 attempts to send AIDC messages to ATSU1 for the entry to ATSU1’s FIR at DONLD, while aircraft is still under the control of ATSU 1

Limitations  Duplicate & unknown waypoints, duplicate ATS routes  Cause problems for flight data processing systems  All waypoints and routes within the area of responsibility should be known and unambiguous  Truncation  A means to truncate (delete) unknown route information and allow downstream units to still accurately process AIDC messaging  Must be completed correctly  Don’t just delete unknown/duplicate waypoints or routes!

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