Which system is utilized for potential traffic advisories in controlled airspace?

The correct answer is Automatic Dependent Surveillance-Broadcast (ADS-B) because this system plays a crucial role in providing situational awareness to both air traffic controllers and pilots regarding air traffic in controlled airspace. ADS-B is a surveillance technology that allows aircraft to determine their position via satellite navigation and periodically broadcast it, along with other information like velocity, to ground stations and other aircraft.

In controlled airspace, ADS-B can significantly improve the flow of traffic by offering real-time data that enables both pilots and air traffic controllers to see all nearby traffic, thus leading to enhanced safety and efficiency. It facilitates the provision of traffic advisories, allowing aircraft to be alerted to potential conflicts well in advance.

The other systems mentioned, while related to air traffic management, serve different specific purposes. The conflict resolution system is a mechanism that helps avoid potential mid-air collisions but requires input from multiple sources to function effectively. The AIR Traffic Control System encompasses a variety of tools and procedures for managing air traffic but does not specifically indicate the technology used for potential advisories. The Traffic Information Service provides pilots with information on nearby traffic but operates independently of the real-time broadcast from aircraft that ADS-B utilizes for conflict advisory.