What type of security measure requires visible identification at all access points?

Access control involves strategies that are implemented to regulate who can enter or exit certain areas, particularly within secure environments like airports. This measure includes the requirement for individuals to present visible identification at all access points. By implementing access control procedures, security personnel can efficiently ascertain whether a person is authorized to enter a specific location. This helps to protect sensitive areas from unauthorized access, ensuring that only individuals with legitimate reasons and verified identification can pass through security checkpoints.

In the context of aviation security, effective access control is crucial for maintaining safety and preventing potential threats. For example, airport personnel must display identification badges that confirm their roles and permissions within the airport facility. This visual verification creates a secure environment by facilitating the identification of authorized individuals while helping to deter potential security breaches.

The other choices, such as access verification, access monitoring, and access facilitation, may all play roles in the security process but do not specifically emphasize the requirement for visible identification at entry points in the same way that access control does. Access verification pertains more to the confirmation of credentials or identity, access monitoring focuses on observing and recording activities at access points, and access facilitation is about making the entry process smoother without compromising security.