What type of signs warn or advise of temporary hazardous conditions on the road?

Roadwork signs are specifically designed to warn or advise drivers of temporary hazardous conditions due to construction, maintenance, or other work taking place on or near the roadway. These signs are crucial for ensuring the safety of both drivers and workers by alerting them to possible changes in road conditions, lane closures, or other potential hazards.

The characteristics of roadwork signs often include bright colors, such as orange, and symbols or messages that convey the nature of the hazard. They are intended to communicate impending dangers and encourage drivers to take appropriate caution, such as reducing speed or being prepared for unexpected stops.

In contrast, warning signs generally indicate permanent hazards, while regulatory signs provide instructions that must be followed, such as speed limits. Guide signs essentially offer information regarding routes, distances, and points of interest rather than indicating hazard status. Therefore, the function of roadwork signs makes them the most appropriate choice for warning or advising of temporary hazardous conditions on the road.