What is the general purpose of warning signs on the road?

The general purpose of warning signs on the road is to warn drivers of dangers or unusual conditions ahead. These signs are designed to alert motorists to potential hazards, such as sharp curves, road work, or changes in road conditions. By using distinct shapes, colors, and symbols, warning signs effectively communicate important information that helps drivers make informed decisions while navigating the road.

For example, a warning sign indicating a deer crossing notifies drivers to be cautious and watch for wildlife that may unexpectedly enter the roadway. This proactive communication is crucial for ensuring the safety of both drivers and pedestrians. The other options do serve important functions on the road, but they do not align with the primary role of warning signs. Enforcement of speed limits and directions are typically communicated through regulatory and guide signs, while parking regulations are indicated specifically through parking signs.