Acoustic barriers are structures designed to reduce noise pollution by blocking sound waves from reaching certain areas. They are commonly used along highways, railways, and industrial sites to protect nearby residential areas from excessive noise. These barriers can be made from various materials, including wood, concrete, and specialized sound-absorbing panels. The effectiveness of acoustic barriers depends on their height, length, and the materials used. They work by reflecting or absorbing sound energy, which helps to lower noise levels in surrounding environments. Properly designed barriers can significantly improve the quality of life for people living near noisy areas, making them an essential tool in urban planning and development.