Noise barriers are structures designed to reduce noise pollution from sources like highways, railways, and industrial areas. They are typically made of materials such as concrete, wood, or metal and are placed between the noise source and residential or quiet areas. By blocking or reflecting sound waves, these barriers help create a more peaceful environment for nearby communities. The effectiveness of noise barriers depends on their height, length, and the materials used. In addition to reducing noise, they can also serve as visual screens, enhancing the aesthetics of an area. Many cities implement noise barriers as part of urban planning to improve the quality of life for residents living near busy roads or railways.