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What do these symbols mean in an airport?

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  • $\begingroup$ Welcome to the site. Can you please provide context, like where did you see it? A clearer title will help others looking for the same answer. $\endgroup$ – ymb1 Jan 25 at 23:58
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The answer is stated in ICAO Annex 12 (Search and Rescue)PDF. (See Appendix I relevant to Chapter 5, 5.8 of the Annex.)

Ground-air visual signal code for use by survivors:

G/A used by survivors

Ground-air visual signal code for use by rescue units:

G/A used by rescue units

Note 1.— Symbols may be formed by any means such as: strips of fabric, parachute material, pieces of wood, stones or such like material; marking the surface by tramping, or staining with oil.

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  • $\begingroup$ Thank you for the answer. $\endgroup$ – montblank Jan 26 at 4:34

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