What is the function of guide signs on highways?

Answer: B — To provide directional information to drivers

Guide signs play a crucial role in assisting drivers by providing essential directional information. Their primary function is to help navigate roadways by indicating routes, distances to destinations, and directions to various places, such as cities, points of interest, and service areas. By offering this information, guide signs facilitate safe and efficient travel, enabling drivers to make informed decisions about their routes. While speed limit signs, traffic congestion displays, and toll alerts are important for highway safety and efficiency, they do not serve the primary purpose of guiding drivers in their navigation journey. Speed limits communicate regulations, congestion levels inform about traffic conditions, and toll alerts notify drivers of fees. However, it is the guide signs that conduct the fundamental task of orientation and navigation, essential for traversing highways effectively.