A flap barrier is a type of access control system commonly used in security and pedestrian management. It consists of a set of barriers with vertical flaps or panels that can rotate or swing to allow or restrict passage. Flap barriers are often employed in areas where controlled access is necessary, such as entrances to buildings, offices, transportation hubs, or secure facilities. https://www.novusapl.com/Revolutionizing-Security-and-Crowd-Management-through-Flap-Barrier.php