What is one of the main purposes of traffic signs?

One of the main purposes of traffic signs is to convey essential information to drivers. Traffic signs play a critical role in maintaining safety and order on the roadways by providing drivers with important guidance regarding road conditions, traffic laws, and necessary actions. For example, stop signs inform drivers when they must come to a complete stop, while yield signs indicate when to give way to other vehicles. This clear communication ensures that drivers are informed about potential hazards, traffic rules, and directions, enabling them to make safe driving decisions and reducing the likelihood of accidents.

While other choices involve important aspects of traffic management, they do not encompass the primary function of traffic signs as effectively as conveying crucial information. For instance, while some traffic signs may indirectly influence speed or pedestrian movement, their foundational purpose is to ensure that drivers understand the rules and conditions they face on the road.