Which access control system is typically used to manage large volumes of people quickly?

The choice of turnstiles as the access control system best suited for managing large volumes of people quickly is appropriate because they are designed specifically for high traffic areas. Turnstiles allow individuals to enter one at a time, providing a controlled entry point while facilitating rapid access. Their design typically involves a rotating arm or gate mechanism that helps ensure that only one person can pass through at a time while maintaining a steady flow.

They are commonly seen in venues such as subway stations, arenas, and large office buildings where many individuals need to access an area efficiently. When integrated with card readers or biometric scanners, turnstiles create an effective access control solution that enhances security without significantly slowing down the flow of traffic.

Keypad entry systems, while useful, require users to input a code, which may slow down access during peak times. Man-trap style portals provide a high level of security but do so at a slower rate since they require each user to be verified individually before the second door opens, making them less effective for high traffic. Card readers generally depend on the user's ability to present their credential, which can also create delays if users are not prepared or if there are technical issues.