This thesis examines the impact of transportation noise on health and the effectiveness of noise barriers, specifically focusing on a new barrier near the BMW Group Plant Debrecen. Constructed from Durisol panels with a concrete core, the barrier spans 975 meters and stands 5 meters high. Using advanced sound level meters and the Svantek SV 307A Noise Monitoring Station, noise levels were measured in compliance with Hungarian standards, accounting for traffic volume and other variables. Results indicated that noise exposure was highest near the highway but significantly reduced behind the barrier. The IMMI 2024 software was crucial in predicting noise levels and assessing the barrier's effectiveness, confirming its capacity to lower noise in residential areas while reflecting it back towards the highway. The thesis underscores the importance of effective noise reduction measures in urban areas to enhance public health and quality of life, recommending ongoing monitoring and further research into noise mitigation strategies.