An access control vestibule, also known as a mantrap, is designed to control individual access to a secure area through two sets of interlocking doors. The first set of doors must close and lock before the second set opens, preventing more than one person from entering the secure area at a time, thus effectively reducing the likelihood of tailgating. In contrast, while badging and visitor logs are important security controls, they rely on human vigilance and may not be as effective as a physical control like a mantrap in preventing tailgating. Alarms are reactive measures that do not prevent the initial unauthorized access.