What does a white rectangle sign typically indicate?

A white rectangle sign is primarily used to convey regulatory information or speed limits. These signs serve to inform drivers of rules that must be followed, such as speed limits, parking regulations, and other critical driving instructions. The regulatory nature of these signs helps ensure safety and order on the road, as they set legal expectations for driver behavior.

For instance, a white rectangular sign displaying a speed limit indicates the maximum speed allowed in a particular area, ensuring that drivers adhere to safe driving practices. Understanding the function of these signs is crucial for all drivers, as compliance with regulatory signs promotes road safety and can prevent accidents caused by misunderstood or ignored traffic rules.