What shape is typically used for directional signs and warning signs?

The shape commonly used for directional signs and warning signs is the rectangle. Rectangular signs are widely recognized and utilized primarily because of their effectiveness in conveying information clearly and efficiently.

In terms of design, rectangular signs provide ample space for text and symbols, ensuring that critical information can be easily read from a distance. This aspect is particularly important for warning signs, which need to capture the attention of drivers and pedestrians quickly to communicate potential hazards effectively.

Directional signs, which guide drivers and inform them of road conditions, destinations, or distances, are also typically displayed in rectangular shapes. The consistency of using rectangles for these types of signs helps reinforce recognition and understanding among road users, contributing to road safety.

Other shapes have specific uses—such as circles for regulatory signs and pentagons for school zone signs—but the rectangular shape remains the most common for both directional and warning signs due to its versatility and clarity.