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Text NOTAM production rules

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Declared Distance

Corresponding Q code

Declared Distance Change

QMDCH

Scope

Insert the value ‘A’.

Lower limit / Upper limit

Use “000/999”

Geographical reference

Insert the coordinate of the ARP (BL.ARP.ElevatedPoint) of the airport, formatted as follows:

  • the set of coordinates comprises 11 characters rounded up or down to the nearest minute; i.e. Latitude (N/S) in 5 characters; Longitude (E/W) in 6 characters;

  • the radius value is “005”.

Items B, C and D

Items B and C shall be decoded following the common production rules.

If at least one RCP.TD.associatedDeclaredDistante.RunwayDeclaredDistanceValue..timeInterval exists (the Event has an associated schedule), then it shall be represented in item D according to the common NOTAM production rules for {{Item D, E - Schedules}}. Otherwise, item D shall be left empty.

Item E

The following pattern should be used for automatically generating the E field text from the AIXM data:

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Reference

Rule

(1)

If AD.BL.locationIndicatorICAO=YES, then ignore this branch.

(2)

Insert here the type of the airport decoded as follows

AHP.BL.type

Text to be inserted in Item E

AD or AH

"AD"

HP

"heliport"

LS or OTHER...

"landing site"

(3)

  1. If ADAHP.BL.name is not NIL, then insert it here. Otherwise,

  2. insert here the text "located at " followed by the ADAHP.BL.ARP.ElevatedPoint decoded according to thetext NOTAM production rules for aixm:Point

(4)

Insert the word “unpaved” if RW.BL.SurfaceCharacteristics.composition has one of the values CLAY, CORAL, EARTH, GRASS, GRAVEL, ICE, LATERITE, MACADAM, SAND, SNOW, WATER, OTHER. Otherwise do not insert anything.

(5)

If ADAHP.BL.type=AD, LS or OTHER ... insert here the declared distance type decoded as follows in the order TORA, TODA, LDA, ASDA.

RCP.TD.DeclaredDistance.type

Text to be inserted in Item E

TORA

"TORA"

TODA

"TODA"

ASDA

"ASDA"

LDA

“LDA”


If AD.BLtype=HP, insert here the declared distance type decoded as follows in the order below:

RCP.TD.DeclaredDistance.type

Text to be inserted in Item E

TODAH

"TODAH"

RTOAH"RTODAH"

LDAH

"LDAH"

If some declared distances are not affected by the temporary change and are kept with their BASELINE TimeSlices values, add after the listing of the changed values "Other declared distances unchanged."

(6)

Insert here the declared distance value followed by its unit of measurement decoded according to the {{text NOTAM production rules for distances}}

(7)

Annotations shall be translated into free text according to the followingencoding rules.

Note: The objective is to fully automate generation, without human intervention. However, the implementers of the specification might consider reducing the cost of a fully automated generation by allowing the operator to fine-tune the text in order to improve its readability (with the inherent risk for human error, when re-typing is allowed).

Items F & G

Leave empty.

Event Update

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