Final answer:
Traffic in a decontamination area must be restricted to authorized personnel only to ensure safety and control over the environment during the decontamination process.
Step-by-step explanation:
In the context of a decontamination area, safety protocols are of utmost importance to ensure the well-being of individuals and the effectiveness of the decontamination process. These areas are typically set up to limit entry to only those personnel who are trained and authorized to be there. Such restrictions help to control the environment and prevent the spread of contaminants. The correct answer to the question is therefore, traffic in the decontamination area must be restricted to authorized personnel only.
The goal is to allow only those with the necessary training and clearance to enter so they can manage the process of decontamination, handle hazardous materials, or perform other specialized tasks. This is similar to designating areas where specific activities take place, or where resources can be extracted with very restricted access to ensure safety and control over the surroundings.