What color and shape are most signs in work areas?

Most signs in work areas are orange with a black legend and diamond-shaped because this specific color and shape combination is standardized to alert drivers to potential hazards related to road work or construction zones. The brightness of the orange color captures attention, signaling that conditions may be dangerous and that drivers should be alert and cautious. The diamond shape is also an established standard for warning signs, making it easily recognizable for drivers. This design effectively conveys the need for heightened awareness and the potential for changes in driving conditions, which is crucial in ensuring safety in construction or maintenance zones.

In contrast, red circular signs are commonly used to indicate stop or prohibition, blue rectangular signs convey services or guidance, and yellow triangular signs are traditionally warning signs on the road unrelated to work zones. Each of these shapes and colors serves a specific purpose, but none are as indicative of work area hazards as the orange diamond-shaped signs.