A flap barrier is a type of pedestrian access control mechanism commonly found in areas requiring restricted access such as train stations, airports, office buildings, and stadiums. It consists of a series of panels or flaps that rotate to allow passage when a valid credential, such as a ticket, access card, or biometric scan, is presented. Flap barriers are designed to prevent unauthorized entry and ensure controlled movement of people through a designated entry or exit point. They are often integrated with access control systems and can be configured to provide various levels of security depending on the requirements of the location. https://www.novusapl.com/Flap-Barrier-Turnstile-NS-FS9-V210.php