Final answer:
Work Area Signs are orange and indicate people are working on the roadway with possible traffic control, Destination Signs are green and provide direction and wayfinding information, Route Signs are blue and indicate the type of route or road, and Service Signs are brown and show the location of services.
Step-by-step explanation:
Work Area Signs: Color: Orange
Meaning: People are working on the roadway, and traffic may be controlled by a flagger. If no speed limit is posted, you must drive at a safe and appropriate speed. Obey the directions and instructions.
Destination Signs: Color: Green
Meaning: Show direction and wayfinding information to various locations.
Route Signs: Color: Blue
Meaning: Shape tells you what type of route or road you are on.
Service Signs: Color: Brown
Meaning: Show the location of services such as gas stations, restaurants, or rest areas.