What does the Automated Terminal Information Service (ATIS) provide?

The Automated Terminal Information Service (ATIS) is a continuous broadcast of recorded information that provides vital airfield and airspace information to pilots and air traffic controllers. This includes data such as current weather conditions, runway usage, available navigational aids, and any significant information regarding the airport’s operational status.

By focusing on this essential information, ATIS ensures that all arrivals and departures are safely coordinated, helping reduce communication congestion on active frequencies. Pilots receive this information before their landing or takeoff, allowing them to prepare and make informed decisions during flight operations.

The other options, while important in the context of an airport's operations, do not accurately describe the primary function of ATIS. For example, weather updates for passengers, check-in information for flights, and security alerts for airport staff, although significant, are not the core purpose of ATIS, which is solely dedicated to relaying airfield and airspace related information to enhance safety and efficiency in aviation operations.