How is a restricted area different from a prohibited area?

A restricted area allows for specific activities to take place and may be traversed by aircraft when it is inactive or when authorization has been granted, making it a more flexible airspace designation. This means that times when the area is not in use by the designated activities, civilian aircraft can pass through it without restriction. The flexibility offered in a restricted area is crucial for accommodating various operational needs while still ensuring safety.

In contrast, a prohibited area is always off-limits to all unauthorized aircraft. This means there are no circumstances under which flight through a prohibited area is allowed, ensuring maximum security or safety in that airspace.

Thus, the correct characterization of a restricted area as one that may be temporarily inactive and usable by other aircraft highlights its key distinction from a prohibited area.