Queue control systems have significantly enhanced airport security by streamlining passenger flow, reducing wait times, and improving overall efficiency. These systems utilise advanced technologies, such as automated barriers, smart camera surveillance, and digital signage, to effectively manage crowds and deter potential security threats. Additionally, they facilitate organised and controlled access to security checkpoints, allowing security personnel to focus on high-risk situations. Barrier Group products, for example, aid in creating structured and secure environments in airports, contributing to a safer travel experience for all passengers.