A sign with an orange background and black letters indicates what type of area?

A sign with an orange background and black letters is specifically used to indicate a construction zone. This color scheme is universally recognized as a warning for drivers to be aware of potential hazards associated with ongoing construction activities. These signs alert drivers to reduced speed limits, lane closures, or other regulations that need to be followed within the construction zone to ensure safety for both workers and motorists.

In contrast, a hazard area typically has a different color scheme, often utilizing yellow for caution. Parking areas usually involve blue or green signs indicating permissible parking regulations, while speed limit zones generally feature white signs with black text to communicate the maximum allowable speed. Recognizing these color codes is crucial for safe navigation on the roads.