Entrance systems refer to the various technologies and designs used to control access to buildings and secure areas. These systems can include physical barriers like doors and gates, as well as electronic components such as keycard readers, biometric scanners, and intercoms. Their primary purpose is to enhance security while allowing authorized individuals to enter easily. In addition to security, entrance systems can also improve the flow of people in and out of a space. For example, automatic doors and turnstiles can facilitate smooth entry and exit, reducing congestion. Overall, effective entrance systems balance safety and convenience for users.