What is the purpose of an advisory speed plaque?

The purpose of an advisory speed plaque is to supplement a warning sign about safe speeds. These plaques inform drivers of recommended speeds under specific conditions, such as curves, intersections, or other areas where maintaining a lower speed is advisable for safety reasons. They are not mandatory speed limits; rather, they serve as guidance based on factors that may affect driving conditions, allowing drivers to make informed decisions for their safety and the safety of others. This additional context helps enhance the driver's understanding of how to navigate potentially hazardous situations effectively.