A construction barrier is a physical structure used to protect the public and workers from construction sites. These barriers can be made of various materials, such as wood, metal, or plastic, and are often brightly colored to increase visibility. They help prevent unauthorized access and ensure safety by keeping pedestrians and vehicles away from potentially hazardous areas. In addition to safety, construction barriers also serve to minimize noise and dust pollution from construction activities. They can be temporary or permanent, depending on the project's duration and requirements. Common types of barriers include fencing, concrete walls, and safety nets.