Traffic signal supports are NOT used to display which of the following items?

Traffic signal supports are primarily designed to hold and display traffic control devices that ensure safe and organized movement for vehicles and pedestrians. Regulatory signs, overhead street name signs, and guide signs all play important roles in providing information regarding traffic rules, directions, and road identification, which enhances the flow of traffic and improves safety.

On the other hand, advertisements are not appropriate for traffic signal supports. Their primary function is to manage and control traffic behavior, and allowing advertisements could lead to distractions for drivers, potentially compromising road safety. Advertisements are typically placed in designated areas that do not interfere with the primary purpose of traffic management. This is why traffic signal supports are not utilized for displaying advertisements.