What is one primary function of an automated flight service station (AFSS)?

One primary function of an automated flight service station (AFSS) is to issue flight plans. This service is crucial as it helps pilots inform air traffic authorities of their intended route, allowing for proper tracking and coordination of air traffic. The issuance of flight plans includes providing necessary information such as the proposed route, altitude, and estimated departure and arrival times. This planning is essential for maintaining safety, especially in busy airspace, and ensures that all relevant agencies are informed about a flight's intentions.

While other options such as flight training, coordinating air shows, and managing airport traffic involve aviation, they do not fall under the primary responsibilities of an AFSS. Flight training is typically provided by accredited flight schools or instructors, air shows are organized by event coordinators rather than AFSS, and airport traffic management is primarily the responsibility of air traffic control, rather than an automated service station. Thus, the role of issuing flight plans aligns most directly with the core functionalities of an AFSS.