Development of methodological approaches to conducting monitoring of traffic noise and its assessment using acoustic modelling methods

Abstract

Introduction. At present, considerable attention is paid to the problems of noise pollution in urban and rural settlements. Transport is the main source of noise in the structure of complaints about unfavourable living conditions in dense urban areas. Material and methods. Materials for selecting the most significant criteria or grouping the objects of surveillance were in situ instrumental measurements of noise levels and the results of acoustic calculations obtained during the processing of an acoustic model. In situ measurements of noise levels were made in St. Petersburg on the territory of residential areas. The acoustic models were built using the software “Acoustics 3D”. Noise source parameters were set according to the data obtained during field measurements. Results. During the development of methodological approaches, the criteria for grouping the objects of surveillance were defined. In accordance with the selected criteria, were formed 8 surveillance groups. As a result of the measurements, the difference in noise levels between the typical points within the group was no found to exceed 2 dB. To verify the developed criteria here acoustic modelling was performed. Limitations. On the territory of St. Petersburg over the year, study included one thousand measurements. Conclusion. The developed criteria make it possible to expand the list of control objects while reducing labour costs for conducting socio-hygienic monitoring, while maintaining the objectivity of the results of the acoustic pollution levels of the territory.