Construction barriers are physical structures used to protect workers, pedestrians, and vehicles from construction sites. They help to prevent accidents by clearly marking off hazardous areas and controlling access. Common types of construction barriers include fencing, concrete blocks, and plastic barricades. These barriers also serve to minimize noise and dust pollution from construction activities. By enclosing the work area, they help maintain safety and order in busy urban environments. Additionally, construction barriers can display important information, such as warning signs and safety instructions, ensuring that everyone is aware of potential hazards.