What does a black on orange sign typically indicate?

A black on orange sign is specifically designed to communicate information about temporary work zones. This color combination is widely recognized as a standard in traffic management, where the orange background alerts drivers to a situation that requires extra caution, often due to road construction, maintenance, or other temporary changes in traffic patterns. The black lettering or symbols provide clear information about the specific conditions ahead, guiding drivers effectively through areas that may pose risks due to work activities.

In contrast to other types of signs, such as those indicating hazardous conditions or detours, the black on orange combination is unique to temporary work zones, ensuring that drivers are adequately warned about potential obstructions or altered traffic rules. This helps enhance safety not just for motorists but also for workers and pedestrians in the vicinity of the construction activities.