When are road signs usually required to be adhered to?

Road signs are required to be adhered to at all times unless otherwise directed by a law enforcement officer because they serve as crucial guides for safe driving behavior and traffic regulations. These signs are strategically placed to inform drivers of speed limits, warnings about potential hazards, right-of-way rules, and other important information that enhances road safety.

Understanding that signs must be followed in all conditions emphasizes the importance of consistently obeying traffic laws. It ensures that drivers are aware of their responsibilities regardless of the time of day, weather conditions, or type of road they are on. This consistency helps reduce accidents and improve overall traffic flow, making the roads safer for everyone.

The other options suggest limitations or specific conditions under which signs may be disregarded, which could create confusion and potentially dangerous situations for drivers. The requirement to follow road signs at all times reinforces the principle of maintaining safety and order on the roads.