Hong Kong International Airport: Air traffic control

航空交通管制（Air traffic control，簡稱ATC）是航空交通服務的其中一種。工作是管理航空交通，指揮飛行器安全地運行。航空交通管制的目標是：
維護航空交通安全，防止飛行器發生意外
維持空中及機場範圍內的秩序，令航機能準時抵達及起飛
防止飛行器誤闖機場範圍，確保機場的運作暢順
Air traffic control (ATC) is a service provided by ground-based controllers who direct aircraft on the ground and in the air. The primary purpose of ATC systems worldwide is to separate aircraft to prevent collisions, to organize and expedite the flow of traffic, and to provide information and other support for pilots when able.

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