Signs

Mandatory Instruction Signs

Note — See ICAO Annex 14 Vol. I, Figure 5-29 for pictorial representation of mandatory instruction signs and ICAO Annex 14 Vol. I, Figure 5-31 for examples of locating signs at taxiway/runway intersections.

           

Application  

9.2.4.2.1   A mandatory instruction sign shall be provided to identify a location beyond which an aircraft taxiing or vehicle shall not proceed unless authorized by the aerodrome control tower.

9.2.4.2.2   Mandatory instruction signs shall include runway designation signs, category I, II or III holding position signs, runway-holding position signs, road-holding position signs and NO ENTRY signs.

Note — See paragraph 9.2.4.7 of this Manual for specifications on road-holding position signs.

9.2.4.2.3   A pattern “A” runway-holding position marking shall be supplemented at a taxiway/runway intersection or a runway/runway intersection with a runway designation sign.

9.2.4.2.4   A pattern “B” runway-holding position marking shall be supplemented with a category I, II or III holding position sign.

9.2.4.2.5   A pattern “A” runway-holding position marking at a runway-holding position established in accordance with paragraph 7.2.12.3 of this Manual shall be supplemented with a runway-holding position sign.

Note — See paragraph 9.2.2.10 of this Manual for specifications on runway-holding position marking.

9.2.4.2.6   Recommendation

Note — See paragraph 9.2.4.3 of this Manual for characteristics of location signs.

9.2.4.2.7   A NO ENTRY sign shall be provided when entry into an area is prohibited.

Location

             

9.2.4.2.8   A runway designation sign at a taxiway/runway intersection or a runway/runway intersection shall be located on each side of the runway-holding position marking facing the direction of approach to the runway.

9.2.4.2.9   A category I, II or III holding position sign shall be located on each side of the runway-holding position marking facing the direction of the approach to the critical area.

9.2.4.2.10   A NO ENTRY sign shall be located at the beginning of the area to which entrance is prohibited on each side of the taxiway as viewed by the pilot.

9.2.4.2.11   A runway-holding position sign shall be located on each side of the runway-holding position established in accordance with paragraph 7.2.12.3 of this Manual, facing the approach to the obstacle limitation surface or ILS/MLS critical/sensitive area, as appropriate.

Characteristics

9.2.4.2.12   A mandatory instruction sign shall consist of an inscription in white on a red background.

9.2.4.2.13   Recommendation

9.2.4.2.14   The inscription on a runway designation sign shall consist of the runway designations of the intersecting runway properly oriented with respect to the viewing position of the sign, except that a runway designation sign installed in the vicinity of a runway extremity may show the runway designation of the concerned runway extremity only.

9.2.4.2.15   The inscription on a category I, II, III or joint II/III holding position sign shall consist of the runway designator followed by CAT I, CAT II, CAT III or CAT II/III, as appropriate.

9.2.4.2.16   The inscription on a NO ENTRY sign shall be in accordance with ICAO Annex 14 Vol. I, Figure 5-29.

9.2.4.2.17   The inscription on a runway-holding position sign at a runwayholding position established in accordance with paragraph 7.2.12.3 of this Manual shall consist of the taxiway designation and a number.

9.2.4.2.18    Where appropriate, the following inscriptions/ symbol shall be used: 

Inscription/Symbol	Use
Runway designation of a runway extremity	To indicate a runway-holding position at a runway extremity
OR
Runway designations of both extremities of a runway	To indicate a runway-holding position located at other taxiway/runway intersections or runway/runway intersections
25 CAT I (Example)	To indicate a category I runway-holding position at the threshold of runway 25
25 CAT II (Example)	To indicate a category II runway-holding position at the threshold of runway 25
25 CAT III (Example)	To indicate a category III runway-holding position at the threshold of runway 25
25 CAT II/III (Example)	To indicate a joint category II/III runway-holding position at the threshold of runway 25
NO ENTRY symbol	To indicate that entry to an area is prohibited
B2 (Example)	To indicate a runway-holding position established in accordance with paragraph 7.2.12.3 of this Manual