What does an orange traffic sign indicate?

An orange traffic sign is specifically used to indicate construction or maintenance activity on or near the roadway. This color is designated to alert drivers that they may encounter work zones where road conditions can change unexpectedly, such as detours, lane closures, or slow-moving vehicles. The use of orange helps ensure the visibility of these warnings, especially in environments where construction might pose increased hazards to both drivers and workers.

The other choices relate to different traffic conditions. For instance, a stop ahead might use a red or yellow sign, while traffic congestion typically does not have a specific color but is communicated through other signage or signals. Yield to pedestrians is indicated by signs that are usually green or white, further distinguishing them from construction signs. The unique association of the orange color with construction helps drivers quickly recognize and respond appropriately to changes in roadways due to maintenance work.