What is an example of an airport access control measure?

The measure of security badges for authorized personnel is a vital aspect of airport access control. This system is designed to restrict access to sensitive areas of the airport, such as tarmacs, baggage handling zones, and control towers, ensuring that only individuals who have been properly vetted and possess the necessary clearance can enter these critical locations. Security badges typically contain identifiable features, such as photos and access levels, to distinguish authorized personnel from unauthorized individuals effectively. This helps maintain a secure environment and reduces the potential for security breaches.

The other options, while they contribute to overall airport security, do not specifically focus on controlling access to vital areas. Metal detectors at the terminal are primarily used for screening passengers and their belongings for prohibited items. Passenger boarding passes are necessary for flying but do not control who can access secured areas of the airport. Random security checks are additional safety measures that serve as deterrents but are not a dedicated means of managing access to restricted zones.