What is the distinguishing feature of a moveable barrier?

The distinguishing feature of a moveable barrier is its ability to be quickly relocated. This characteristic is crucial for various operational scenarios where flexibility is needed to adapt to changing security situations or to provide access to certain areas while still maintaining a level of control. Moveable barriers are designed for rapid deployment and repositioning, which allows security personnel to respond swiftly to threats or alter the flow of traffic as necessary.

In contrast, barriers that require heavy equipment to relocate or are permanently installed serve different purposes and do not fit the definition of a moveable barrier. The reliance on worker effort or structural requirements also indicates a more permanent and less flexible system. Therefore, the capacity for quick relocation defines what makes a barrier truly "moveable" in the context of security operations.