A sign with a white background, black letters, and the words speed and limit indicates what?

A sign featuring a white background with black letters that includes the words "speed" and "limit" communicates the maximum and minimum speed requirements for a specific area. This regulatory sign establishes the lawful speed at which vehicles must travel under normal conditions.

In this context, the use of a white background signifies that it is a regulatory sign, while the black letters provide clear, easily readable instructions to drivers. The mention of both maximum and minimum speeds is critical as it indicates that drivers must adhere to the specified limits, ensuring safety and compliance on the road.

Understanding this type of sign is essential for all drivers, as it helps maintain a consistent flow of traffic and promotes safe driving behaviors, especially in areas where speed limits are strictly enforced.