Which system is included in the ERJ-145’s collision avoidance technology?

The collision avoidance technology in the ERJ-145 includes the Traffic Collision Avoidance System (TCAS). TCAS is an essential system designed to help prevent mid-air collisions between aircraft by detecting other transponder-equipped aircraft in the vicinity. It provides pilots with advisories to either climb or descend to avoid potential conflicts, enhancing situational awareness and safety in crowded airspace.

While radar, ADS-B, and GPS are vital systems in aviation, they serve different purposes. Radar primarily helps in detecting and tracking objects, ADS-B provides real-time aircraft position information for situational awareness, and GPS is used for navigation. However, TCAS specifically focuses on avoiding collisions with other aircraft, making it the appropriate answer in this context.