Guide signs are primarily used to show what type of information?

Guide signs are designed to provide essential information to drivers regarding route destinations and directions. They play a crucial role in navigation by helping motorists understand where they are, where they can go, and the best routes to take to reach desired locations. This includes information about highway exits, intersections, and points of interest, which aids in making informed decisions while driving.

The other types of signs mentioned in the options serve different purposes: warning signs alert drivers to potential hazards or changes in the road conditions, regulatory signs convey traffic laws that must be followed, and weather-related advisories inform drivers about conditions that may impact travel. Each category has a specific function, but guide signs are uniquely focused on helping drivers navigate their routes effectively.