___ is a method used to reduce noise levels on construction sites.

___ is a method used to reduce noise levels on construction sites.

• A. Relocating noisy equipment
• B. Erecting sound barriers
• C. Both relocating equipment and barriers
• D. Neither relocating equipment nor barriers

Answer: (C)

To reduce construction-site noise effectively, use engineering controls that address both the source of the noise and how it travels. Relocating loud equipment away from workers and nearby receivers lowers the initial sound energy reaching people. Erecting sound barriers, such as solid barriers or earth berms, blocks or diminishes the noise as it propagates through the air. Using both strategies together is more impactful because it reduces the noise at its source and interrupts its path to receivers, yielding greater overall reduction than either method alone. Relying on only relocation can leave noise still reaching people via direct paths or reflections, while barriers alone may be impractical in some layouts or insufficient if the source remains very loud.

To reduce construction-site noise effectively, use engineering controls that address both the source of the noise and how it travels. Relocating loud equipment away from workers and nearby receivers lowers the initial sound energy reaching people. Erecting sound barriers, such as solid barriers or earth berms, blocks or diminishes the noise as it propagates through the air. Using both strategies together is more impactful because it reduces the noise at its source and interrupts its path to receivers, yielding greater overall reduction than either method alone. Relying on only relocation can leave noise still reaching people via direct paths or reflections, while barriers alone may be impractical in some layouts or insufficient if the source remains very loud.