What is the primary purpose of construction and maintenance signs on the road?

The primary purpose of construction and maintenance signs on the road is to notify drivers of potential danger. These signs are critical for ensuring the safety of both drivers and workers by indicating areas where road conditions may be hazardous due to construction or maintenance activities. They serve to raise awareness about changes in road conditions, such as reduced lane width, merging traffic, or workers present, which could pose risks. By alerting drivers to these dangers, construction and maintenance signs help them adjust their speed, be more vigilant, and navigate safely through work zones. This is essential in preventing accidents, injuries, and ensuring smooth traffic flow in areas where road work is occurring.