Virtual queues are systems that allow people to hold their place in line without physically waiting. Instead of standing in a crowded area, individuals can join a queue through a mobile app or website. They receive updates on their wait time and are notified when it's their turn, making the experience more convenient and comfortable. These systems are commonly used in various settings, such as amusement parks, restaurants, and events. By implementing virtual queues, businesses can improve customer satisfaction and manage crowd control more effectively, reducing the stress associated with traditional waiting lines.