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(Doc 9426).
1. Designators for standard departure and arrival
routes and associated procedures
Note.— In the following text the term “route” is used in the
meaning of “route and associated procedures”.
1.1 The system of designators shall:
a) permit the identification of each route in a simple and
unambiguous manner;
b) make a clear distinction between:
— departure routes and arrival routes;
— departure or arrival routes and other ATS routes;
— routes requiring navigation by reference to groundbased
radio aids or self-contained airborne aids, and
routes requiring navigation by visual reference to the
ground;
c) be compatible with ATS and aircraft data processing
and display requirements;
d) be of utmost brevity in its operational application;
e) avoid redundancy;
f) provide sufficient possibility for extension to cater for
any future requirements without the need for fundamental
changes.
1.2 Each route shall be identified by a plain language
designator and a corresponding coded designator.
1.3 The designators shall, in voice communications, be
easily recognizable as relating to a standard departure or
arrival route and shall not create any difficulties in
pronunciation for pilots and ATS personnel.
2. Composition of designators
2.1 Plain language designator
2.1.1 The plain language designator of a standard departure
or arrival route shall consist of:
a) a basic indicator; followed by
b) a validity indicator; followed by
c) a route indicator, where required; followed by
d) the word “departure” or “arrival”; followed by
e) the word “visual”, if the route has been established for
use by aircraft operating in accordance with the visual
flight rules (VFR).
2.1.2 The basic indicator shall be the name or name-code
of the significant point where a standard departure route
terminates or a standard arrival route begins.
2.1.3 The validity indicator shall be a number from 1
to 9.
2.1.4 The route indicator shall be one letter of the
alphabet. The letters “I” and “O” shall not be used.
2.2 Coded designator
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.
Note.— Limitations in the display equipment on board
aircraft may require shortening of the basic indicator, if that
indicator is a five-letter name-code, e.g. KODAP. The manner
in which such an indicator is shortened is left to the discretion
of operators.
Annex 11 — Air Traffic Services Appendix 3
1/11/01 APP 3-2
3. Assignment of designators
3.1 Each route shall be assigned a separate designator.
3.2 To distinguish between two or more routes which
relate to the same significant point (and therefore are assigned
the same basic indicator), a separate route indicator as
described in 2.1.4 shall be assigned to each route.
4. Assignment of validity indicators
4.1 A validity indicator shall be assigned to each route to
identify the route which is currently in effect.
4.2 The first validity indicator to be assigned shall be the
number “1”.
4.3 Whenever a route is amended, a new validity
indicator, consisting of the next higher number, shall be
assigned. The number “9” shall be followed by the
number “1”.
5. Examples of plain language
and coded designators
5.1 Example 1: Standard departure route — instrument:
a) Plain language BRECON ONE
designator: DEPARTURE
b) Coded designator: BCN 1
5.1.1 Meaning: The designator identifies a standard
instrument departure route which terminates at the significant
point BRECON (basic indicator). BRECON is a radio
navigation facility with the identification BCN (basic indicator
of the coded designator). The validity indicator ONE (1 in the
coded designator) signifies either that the original version of
the route is still in effect or that a change has been made from
the previous version NINE (9) to the now effective version
ONE (1) (see 4.3). The absence of a route indicator (see 2.1.4
and 3.2) signifies that only one route, in this case a departure
route, has been established with reference to BRECON.
5.2 Example 2: Standard arrival route — instrument:
a) Plain language KODAP TWO ALPHA
designator: ARRIVAL
　
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