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Regarding the bearing strength of aprons, runways, and taxiways, the abbreviation PCN stands for…

  • A
    Platform Code Number.
  • B
    Pavement Classification Number.
  • C
    Pavement Code Number.
  • D
    Platform Classification Number.

ICAO Annex 14
Pavement classification number (PCN). A number expressing the bearing strength of a pavement for unrestricted operations.


2.6 Strength of pavements

2.6.1 The bearing strength of a pavement shall be determined.

2.6.2 The bearing strength of a pavement intended for aircraft of apron (ramp) mass greater than 5700 kg shall be made available using the aircraft classification number — pavement classification number (ACN-PCN) method by reporting all of the following information:

a) the pavement classification number (PCN);

b) pavement type for ACN-PCN determination;

c) subgrade strength category;

d) maximum allowable tire pressure category or maximum allowable tire pressure value; and

e) evaluation method.

Note — If necessary, PCNs may be published to an accuracy of one-tenth of a whole number.

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