What does a circular traffic sign indicate?

A circular traffic sign primarily indicates mandatory instructions or prohibitions. These signs are designed to convey essential rules that drivers must follow in order to ensure safety and proper traffic flow. For instance, a circular sign might instruct drivers to stop, yield, or obey a specific speed limit. The use of a circular shape is standardized internationally to signal to drivers the necessity of compliance with the instructions displayed, which is critical for maintaining effective road safety.

In the context of road signs, it's important to differentiate between shapes and their meanings. While some shapes may indicate warnings or provide information, the circular shape is distinctly reserved for mandatory signs. This clarity helps drivers quickly recognize the rules they need to adhere to as they navigate the roads.