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AIXM Procedure Modelling Seminar Additional topics for discussion. Brussels – 01/02 Sept 2010. NOTAM for Procedures.

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Aixm procedure modelling seminar additional topics for discussion

AIXM Procedure Modelling SeminarAdditional topics for discussion

Brussels – 01/02 Sept 2010


Notam for procedures
NOTAM for Procedures

  • If a navaid is used for several airports, then the current practice in many States is to publish a "navaid u/s" NOTAM for each airport that is affected, with the corresponding airport in item A.

  • Proposed way forward, to be stated as a note in the event specification:

    • the Event could be translated into a NOTAM with the FIR in item A and

    • separate Event and separate NOTAM should be published for the affected procedures having the airport identifier in item A

  • The information about which procedures are affected by a navaid u/s should be available as static data


Notam for procedures1
NOTAM for Procedures

  • A good NOTAM ?

    (A3547/07 NOTAMN

    Q) LFEE/QNVAS/IV/BO /AE/000/999/4848N00727E025

    A) LFST B) 0710010630 C) 0710011303

    E) PART VOR OF VOR DME 'SAV' OUT OF SERVICE :

    DO NOT USE - FALSE INDICATIONS POSSIBLE

    -STAR GTQ 6V, ET LUL 6V, HLDG PROCEDURE OVER SAV,

    SID EPIKO 7J NOT AVBL.

    -IAF FOR ARRIVALS RWY 23 WILL BE BERUG (483723.877N 0065737.195E).

    LUPEN AND 'SE' ONLY UNDER INSTRUCTION.

    -INTERCEPTION OF INTERMEDIATE AND FINAL PHASES RWY 23 IS

    PERFORMED AFTER AN INITIAL PHASE UNDER RADAR GUIDANCE.)


Notam for procedures2
NOTAM for Procedures

  • A bad one, because it does not say exactly what "affected" means ?

    A1249/10 NOTAMN (EBBR A1249/10)

    Q) EBBU/QFALT/IV/NBO/A/000/999/5054N00429E005

    A) EBBR B) 1006160700 C) 1007101600

    E) DURING OUTAGE OF HUL DVOR/DME FOLLOWING ATC PROCEDURES ARE AFFECTED

    1)EBBR ILS PROCEDURES RWY 02, VOR PROCEDURES RWY 07R

    2)EBBR STANDARD MISSED APPROACH PROCEDURE RWY 20

    3)EBBR SID CIV4J, CIV6F, DENUT2N, DENUT3C, DENUT3L, HELEN2N,

    HELEN3C, HELEN3L, LNO2C, LNO2D, LNO2H, LNO2J, LNO2Q, LNO3F, LNO3Z,

    LNO4L, PITES3C, PITES3D, PITES3F, PITES3H, PITES3L, PITES3Z,

    ROUSY3C, ROUSY3D, ROUSY3F, ROUSY3H, ROUSY3J, ROUSY3L, ROUSY3Z,

    SOPOK2H, SOPOK2J, SOPOK2L, SOPOK3C, SOPOK3D, SOPOK3F, SOPOK4Z,

    SPI2C, SPI2D, SPI2J, SPI2Q, SPI3F, SPI3H, SPI3L, SPI4Z

    4)EBBR STAR ARVOL3B, TULNI3B

    PILOTS UNABLE TO COMPLY WITH THESE PROCEDURES SHALL REQUEST

    ALTERNATIVE INSTRUCTIONS TO ATC. PERIODS OF OUTAGE OF HUL DVOR/DME

    ARE ANNOUNCED BY SEPARATE NOTAM AND ATIS


Notam for procedures3
NOTAM for Procedures

  • The information about which procedures are affected by a navaid u/s should be available as static data

    • Unless the procedure designer accepts to be called at 3am on a Sunday morning by the NOTAM office to tell them which procedures are unusable because of VOR/DME X outage …

  • By which extent this information can be provided from the design phase and who has the responsibility to decide for announcing that the procedure is unusable?



Recommended navaid1
Recommended navaid

The current AIXM 5.1 encoding solution


Recommended navaid2
Recommended navaid

Point Reference Role


Recommended navaid3
Recommended navaid

The current AIXM 5.1 encoding solution

= RECNAV


Recommended navaid4
Recommended Navaid

  • Change proposal?



Multi branch procedures1
“Multi-branch” procedures

  • ICAO Annex 11, Appendix 3

    “The coded designator of a standard departure or arrival route instrument or visual, shall consist of:

    a) the coded designator or name-code of the significant point described in 2.1.1 a); followed by

    b) the validity indicator in 2.1.1 b); followed by

    c) the route indicator in 2.1.1 c), where required.”

    Example: ADOLA 5 B




Multi branch procedures4
“Multi-branch” procedures

  • According to Annex 11, AIPs: multi-branch procedures do not exist?

  • “common route” transitions have been introduced for FMS database size reasons

  • AIXM 5 tries to support both views: individual procedures and multi-branch


Multi branch procedures5
“Multi-branch” procedures

  • Procedure encoding workflow with AIXM

    • Each leg belongs to one procedure

    • No sequence number because it was assumed that start/end point data is sufficient to identify the order of the segments

    • VEROR4A and VEROR4B are two different Procedure instances


Multi branch procedures6
“Multi-branch” procedures

  • Procedure transitions can also be encoded “top-down”, using the pre-defined legs.



Curve associated with the procedure
Curve associated with the procedure

  • Who will generate the “curve” associated with the procedure leg/transition?

    • Procedure designer to charting / AIS office?

    • Chart designer based on the information provided by the procedure designer?

    • Procedure encoding client of AIS, based on the leg information provided by AIS?


Other topics raised during registration
Other topics raised during registration

  • Protection areas

  • The way From procedure design to Coding

  • The place of the protection areas in the P&T coding

  • What is the integrity/correctness of a coding regarding P&T

  • ARINC coding in the AIXM 5.1 model

  • AIXM 5.1 model compatibility with PANS-OPS

  • Topologcally Correct Geo-Spatial Data Management (Segment Legs, Protected Areas etc)

  • Mapping between ARINC 424 / DAFIF procedure model & AIXM 5.1 procedure model

  • How to encode conventional procedures

  • How to handle multiple arrival segments


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