What does a sign with an orange background and black letters typically indicate?

A sign featuring an orange background and black letters is universally recognized as a symbol for construction zones. These signs are specifically designed to alert drivers to the presence of work areas on or near the roadway, indicating that special caution should be taken. The orange color serves as a warning, conveying that there may be changes in the roadway, such as detours, narrowed lanes, or workers present in the vicinity. This heightened visibility is crucial for ensuring both driver safety and the safety of construction workers on site.

In contrast, other signs mentioned are categorized differently: stop signs have a distinct red background with white letters, warning signs about wildlife typically use yellow backgrounds, and speed limit signs are usually white with black letters. Each category has its designated colors and designs to communicate specific messages effectively and ensure clarity for drivers.