A sound barrier is a physical structure designed to reduce noise pollution, especially in areas near busy roads or railways. These barriers can be made from various materials, such as concrete, wood, or metal, and are typically tall enough to block sound waves from reaching nearby homes or parks. By absorbing or reflecting sound, they help create a quieter environment for people living close to noisy transportation routes. In addition to their noise-reducing benefits, sound barriers can also serve as visual screens, enhancing the landscape. Some barriers are even designed with greenery, incorporating plants to improve aesthetics and promote biodiversity. Overall, sound barriers play a crucial role in balancing urban development with community well-being.