ADS-B provides many benefits to both pilots and air traffic control that improve both the safety and efficiency of flight.[12][13]
Traffic – When using an ADS-B In system, a pilot is able to view traffic information about surrounding aircraft. This information includes altitude, heading, speed, and distance to aircraft.
Weather – Aircraft equipped with universal access transceiver (UAT) ADS-B In technology will be able to receive weather reports, and weather radar through flight information service-broadcast (FIS-B).
Terrain – ADS-B In technology broadcasts a terrain overlay for pilots to view in the cockpit.
Flight information – Traffic information service-broadcast (TIS-B, not to be confused with FIS-B) transmits readable flight information such as temporary flight restrictions (TFRs) and NOTAMs to aircraft equipped with either UAT or 1090 ES ADS-B systems.
Expense - ADS-B ground stations are significantly cheaper to install and operate compared to primary and secondary radar systems.
Unlike some alternative in-flight weather services currently being offered commercially, there will be no subscription fees to use ADS-B services or its various benefits in the US. The aircraft owner will pay for the equipment and installation, while the Federal Aviation Administration (FAA) will pay for administering and broadcasting all the services related to the technology.