2. Many colors and that means
each
Green: For informational signs, such as directions,
distances, and places.
Yellow: For the warning signs, such as curves and
school zones.
Red: To indicate emergency stop devices or
security-related devices that are banned or
prohibited under normal circumstances.
3. Blue: For the rest areas, food, gasoline,
hospitals, and lodging
Orange: For locations and temporary detours
traffic control.
White: For regulatory signs, such as speed
limits or parking.
