Editing ATC (section)

==Transport==
* [[Advanced transportation controller]], a standardization effort as part of the United States Department of Transportation's Intelligent transportation system
* All-terrain cycle, a type of [[All-terrain vehicle#Three-wheeled ATVs|all-terrain vehicle]]
* [[Alvarado Transportation Center]], an intermodal transit center in New Mexico
* [[American Truck Corporation]], a USA importer and/or assembler of Tatra and Kraz trucks.
* [[Armored Troop Carrier (LCM)]], used in the Vietnam War
* Automatic traffic counter, see [[traffic count]]

===Aviation===
* [[Air traffic control]], a service provided to aircraft by ground-based controllers
** [[Air traffic controller]], people who expedite and maintain a safe and orderly flow of air traffic in the global air traffic control system
* [[Air Tanzania Corporation]], the former state-owned airline of Tanzania

===Rail===
* [[Automatic train control]], a safety system for railways
* [[Automatic and Track Control]], a tokenless form of safeworking on single rail lines used in Victoria, Australia