The Impact of Traffic Parameter Assessment on Noise Emission

The study is an experimental attempt to determine the correlation between traffic parameters, meteorological parameters, and sound pollution (noise) created as a result of the traffic. This chapter presents research results of traffic noise level recorded in the street of the transit and distribution function, which is a part of the road system of the city of Bielsko-Biala, Poland. The study was conducted before and after the opening of the expressway S-69, which took over the transit function from the examined street. Measured noise data were compared to the registered traffic flows and the share of heavy vehicles in the traffic flow. The results of research conducted before and after opening of the expressway were also compared. The studies are at the first step towards obtaining general assumptions to the formulation of a semiempirical model of acoustic impact of traffic flow.