Final answer:
Traffic signs communicate important information such as speed limits and yield or stop instructions to ensure safety on the road. Although not specifically described in the question, context clues suggest that the sign is related to controlling vehicle speed or managing right-of-way at intersections.
Step-by-step explanation:
When driving on a two-lane highway and encountering traffic signs, understanding their message is essential for safe driving. A traffic sign on the right can indicate various things, such as the speed limit, road conditions, or instructions like when to yield or stop. While figures or photos of the specific sign mentioned are not directly provided, we can infer from the context provided that it might be a sign that affects speed or right-of-way.
For example, the de jure speed limit is the officially posted speed limit sign, which drivers are legally obligated to follow. However, the de facto speed limit might be slightly different, referring to the speed at which law enforcement typically begins to issue speeding tickets. Understanding these can help maintain safe driving practices.
If the sign in question requires drivers to slow down, such as a stop sign or traffic light, it ensures that vehicles do not speed through the intersection, as speeding could lead to accidents.