Final answer:
Work zone signs use the color orange, which is highly visible and serves safety purposes. Orange also has symbolic meanings in different cultures.
Step-by-step explanation:
The colors used in work zone signs, such as orange with black letters or symbols, serve important purposes related to safety and visibility. Orange is highly noticeable in all light conditions, making it suitable for caution signs or emergency workers' uniforms. Work zone signs use the color orange, which is highly visible and serves safety purposes. Orange also has symbolic meanings in different cultures.
Orange is also associated with other symbolic meanings in different cultural contexts. For example, in Buddhist cultures, orange represents something holy and is associated with the robes of Buddhist monks. In the Netherlands, orange is the color of the royal family and is used for patriotic purposes.