What is the role of the airport's Access Control System?

The role of the airport's Access Control System centers around managing and restricting access to secure areas by verifying the credentials of individuals. This system is critical for maintaining security within the airport environment, especially in areas where sensitive operations take place, such as boarding gates, baggage handling, and security checkpoints.

By using this system, airports can ensure that only authorized personnel, such as staff with valid identification or personnel who have undergone proper vetting, can enter restricted zones. This helps prevent unauthorized access and enhances overall safety within the airport, contributing to the broader goal of securing aviation operations against potential threats.

The other choices, while related to airport operations, do not pertain directly to the essential function of access control in maintaining security within restricted areas.