Air __ Control; Green or Red Lights for Flights

This page is the CodyCross answer for the clue below from Cruise Ship, Group 651, Puzzle 5 (Ropes Course).

Question is: Air __ Control; Green or Red Lights for Flights

and the answer is: TRAFFIC

Word Meaning:

TRAFFIC — Moving pedestrians or vehicles, or the flux or passage thereof.

Definitions from Wiktionary.

Air __ control; green or red lights for flights — CodyCross Answer | CodyCross Solutions