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Traffic Alert and Collision Avoidance System
nat.sc., transp.	système anticollision et de surveillance du trafic; système anti-collision TCAS
traffic alert and collision avoidance system
avia., Canada	système d’avertissement de trafic et d’évitement d’abordage
traffic-alert and collision-avoidance system
transp., avia., tech.	Système d'avertissement de trafic et de prévention des abordages
English thesaurus
Traffic Alert and Collision Avoidance System
abbr.	TCAS system (MichaelBurov)
abbr., avia.	TCAS (MichaelBurov)
transp., abbr.	TCAS
traffic alert and collision avoidance system
avia., Canada	A type of airborne collision avoidance system ACAS based on a family of airborne equipment that functions independently of the ground-based ATC system to detect potential conflicting aircraft that are equipped with secondary surveillance radar SSR transponders. There are three different versions: TCAS I provides traffic advisories; TCAS II provides traffic advisories and vertical resolution advisories RA; and TCAS IV, when developed, will provide traffic advisories and vertical and horizontal RAs.