Abstract
The paper presents an analysis of the noise recorded by the two road traffic noise-monitoring stations. The stations were located in Kielce, Poland, at the road No. 74: on the outskirts of the city and near the center. Based on the experimentally recorded data, an equivalent sound level and acoustic pressure were determined for three sub-intervals of the day: nights, days and evenings. The conducted analyses showed that the average annual values (depending only on the time sub-intervals) of the median do not differ significantly between stations. A similar conclusion can be drawn based on simulations of the median and the C90 percentile of the sound pressure . However, the maximum relative differences in the C99 percentile of the acoustic pressure between stations are around 13%. The maximum relative differences in median pressure between stations are around 15% (for the time sub-interval nights).
Highlights
Short- or long-term noise indicators are used to assess the traffic noise, which significantly contributes to environmental pollution and greatly affects the comfort of life [1,2]
The subject of research, presented in this work, are results of the equivalent sound level measurements recorded by stationary, automatic stations for monitoring noise and vehicle traffic located at Lodzka Rd. and Jesionowa Rd. in Kielce
Databases of the sound level measurement results were created in the form of calculated values of the equivalent sound level expressed in decibels
Summary
Short- or long-term noise indicators are used to assess the traffic noise, which significantly contributes to environmental pollution and greatly affects the comfort of life [1,2]. In order to monitor the noise and traffic volume of road vehicles, systems of stationary measuring stations operating throughout the year are being built in some cities [3,4,5]. Results of the noise monitoring are related to changes in the structure and volume of traffic in the city [6,7]. They indicate the danger associated with the harmful effects of noise on the humans residing in specific areas of the city [8,9]. The authors decided to conduct a detailed analysis of the road noise generated during this period
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