First Steps in Urban Noise: Recommendations for urban trees as noise buffers
Prolonged exposure to high noise levels in an urban setting has been linked to a range of adverse effects, including sleep disturbances, reduced cognitive performance, and increased stress levels. Vulnerable populations such as children, the elderly, and those with pre-existing health conditions are particularly at risk. Trees act as natural sound barriers by absorbing, deflecting, and refracting sound waves. Their leaves, branches, and bark help dissipate acoustic energy. Dense vegetation belts, when properly designed and maintained, can reduce noise levels by 5 to 10 decibels or more, significantly improving the acoustic environment of urban spaces.