What color are TCC signs typically?

TCC signs, or Traffic Control Compliance signs, are typically orange and black. This color scheme is used because orange is widely recognized as a color that signifies caution and alertness, especially in conjunction with roadwork and construction zones. The black lettering or symbols on these signs provide high contrast, making the messages clear and visible to drivers.

The use of orange and black helps to effectively communicate the presence of work zones and the necessity for drivers to be vigilant as they navigate through potentially hazardous areas. This visibility is crucial for the safety of both the drivers and the personnel working in the zone. Other color choices, such as red and white or yellow and blue, fulfill different functions or denote different types of information on road signs but are not appropriate for Traffic Control Compliance signs.