Abstract
Transport is one of the most burdensome negative sources affecting the natural environment. Long-term exposure of the body to exhaust pollution can cause health problems and, in the worst case, even lead to death. In addition to exhaust emissions, traffic noise is another equally important issue. Due to its nature, variability over time or the design diversity of vehicles in the traffic flow, it is a phenomenon difficult to define. Like exhaust pollution, it affects people's health and quality of life. In addition to its direct impact on the human physical system, it can also cause psychosomatic disorders, which is why a detailed analysis of road noise taking into account the real operation of the vehicle is so important. The paper presents the basic concepts related to the problem of traffic noise in the world, determines the sources of noise in vehicles and the methodology of conducting acoustic road tests. At the final stage of the scientific paper, methods of reducing excessive noise levels in large urban agglomerations were also presented, and the effectiveness of using noise barriers on selected parts of the city road network using proprietary acoustic tests was assessed.
Highlights
The problem of air pollution by exhaust gases is a global problem that affects all developed countries in economic terms
Traffic noise is a very dangerous civilization problem which, like exhaust emissions, requires a lot of research, analysis and activities aimed at reducing its nuisance
Exposure to noise carries the risk of hearing loss, problems with the proper functioning of many organs in humans, causes mental problems, and has a negative impact on the quality of life of people
Summary
The problem of air pollution by exhaust gases is a global problem that affects all developed countries in economic terms. On the basis of the obtained results and the conducted analysis, they indicated the possibility of predicting the noise level in a given area depending on the selected urban elements. Two mathematical models to determine the sound level were proposed in [17] Their correctness was checked in the study by comparing the obtained results with the road noise measured directly. In the discussed works on the problem of traffic noise, the authors took up the above issue by carrying out a literature review, including determining the negative effects of noise on the human and driver's body, determining specific relationships and developing innovative models for determining the noise level. All the authors of the publication noticed the essence of the problem of road noise, trying to reduce it to a level that would not adversely affect human health and the life quality.
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