What color(s) are roadwork/construction signs?

Roadwork and construction signs are typically yellow and black. This color combination is specifically used to alert drivers to upcoming construction zones, maintenance activities, or other roadwork that could affect driving conditions. The bright yellow color is highly visible and serves as a warning, while the black text and symbols provide clear instructions or information about the upcoming situation.

The choice indicating brown is usually reserved for recreational and scenic area signs, indicating that it's not suitable for roadwork situations. Red and white colors are utilized primarily for regulatory signs, such as stop signs or yield signs, which communicate rules that must be followed. Green signs often provide guidance and directional information, such as highway exit signs or destination signs. Understanding these color codes enhances a driver's ability to recognize and respond to various road situations effectively.