What is the primary purpose of traffic signs?

The primary purpose of traffic signs is to convey necessary information and instructions to drivers. These signs play a critical role in maintaining safety and order on the road by providing essential details regarding speed limits, warnings about hazards, directions, and rules that govern the use of the roadway. Traffic signs help ensure that drivers can make informed decisions while navigating their surroundings, which ultimately contributes to the overall efficiency and safety of the transportation system.

While some signs might occasionally be found in locations where wildlife crossings are designated, this is merely a subset of the broader goal of instructing and informing drivers. Other options, such as using signs for decoration or advertisements, do not align with the fundamental role of traffic signs, which must prioritize safety and functionality above all else.