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In ICAO Annex 14, Volume 1, the recommended runway width is specified by a combination of code numbers and letters, and is found in..
  • A
    Chapter 10: Aerodrome Maintenance.
  • B
    Chapter 3: Physical Characteristics.
  • C
    Chapter 1: General.
  • D
    Chapter 2: Aerodrome Data.

Refer to figure.
ICAO Annex 14
Chapter 3 - Physical characteristics

Width of runways

3.1.10 Recommendation.— The width of a runway should be not less than the appropriate dimension specified in the following tabulation:

Outer Main Gear Wheel Span (OMGWS)

Code number

Up to but not including 4.5 m

4.5 m up to but not including 6 m

6 m up to but not including 9 m

9 m up to but not including 15 m

1a

18 m

18 m

23 m

-

2a

23 m

23 m

30 m

-

3

30 m

30 m

30 m

45 m

4

-

-

45 m

45 m

a. The width of a precision approach runway should be not less than 30 m where the code number is 1 or 2.

The recommended runway width is provided in ICAO Annex 14 chapter 3 (Physical characteristics) since the width of the runway is one of the runway's physical characteristics.

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