What does a white rectangular sign usually represent?

A white rectangular sign typically serves as an indicator of regulatory information or instructions for drivers. These signs provide important information that must be followed in order to maintain safety on the roads. For example, they may convey speed limits, parking regulations, or other directives that detail what is legally permissible or expected from drivers. This regulatory aspect is inherent in the design of white rectangular signs, which are clearly visible and are intended to convey necessary information that drivers must adhere to in order to ensure compliance with traffic laws.

While other categories, such as speed limits or warnings, are important aspects of road safety, they often utilize other shapes and colors, such as octagonal red signs for stop instructions or triangular yield signs. Information about services and amenities is typically represented by blue signs, while traffic regulations encompass a broader range of signs that may also use different colors and shapes to convey various rules.