What is the main function of barricades in construction areas?

The primary function of barricades in construction areas is to block off dangerous areas from drivers. Barricades are essential for ensuring the safety of both workers and the traveling public. They serve as a physical barrier that delineates unsafe zones where construction is taking place or where hazardous conditions exist, effectively preventing unauthorized access and minimizing the risk of accidents.

Properly placed barricades help to direct traffic away from danger, allowing for a safer work environment and clear pathways for vehicles. By doing so, they play a critical role in protecting drivers from potential hazards such as open trenches, heavy equipment, or other construction-related dangers that could lead to collisions or injuries.

While the other options may relate to various aspects of road use and safety management, enhancing aesthetic appeal, providing tourist information, or designating parking do not address the direct and vital safety functions that barricades fulfill in construction zones.