What do orange road signs indicate?

Orange road signs are specifically used to indicate construction or maintenance areas. These signs are vital for alerting drivers to changes in road conditions, lane closures, equipment on the road, or workers present in the area. This color is chosen because it stands out and grabs the attention of drivers, ensuring they remain alert and cautious when navigating through potentially hazardous zones.

In relation to the other options, safety zones are typically indicated by different colors like green or blue; speed limits are shown on white signs with black lettering; and route guidance is commonly marked with green signs. The distinctive use of orange for construction or maintenance is a recognized standard on roadways to promote safety during roadwork activities.