NOISE INDICATORS DETERMINATION BASED ON LONG-TERM MEASUREMENTS

Momir Ratko Praščević, Darko Ivan Mihajlov

DOI Number
-
First page
1
Last page
11

Abstract


European Union Environmental Noise Directive 2002/49/EC and the new Serbian regulations in scope of environmental noise introduce two basic indicators for environmental noise assessment: Lden and Ln. In addition, the use of the additional indicators Ld and Le is recommended. For the purposes of strategic noise mapping and assessment of noise announcement is necessary to determine the annual value of these indicators. The annual values of noise indicators can be determined by short- or long-term measurements, or a combination of these measurements. Short-term measurements are carried out under specified noise source operating and meteorological conditions and the annual value of a noise indicator are determined by calculation. On the other hand, long-term measurements include measurements during the time interval long enough to include changes in the source operating and meteorological conditions. These measurements are more accurate and can be used with a much less corrections than those of the short-term measurement. Two noise monitoring terminals for continuous noise measurement were installed in the central city area of Niš in order to determine the annual value of noise indicators and the optimal time interval for conducting long-term measurement. The basic features and capabilities of used noise monitoring terminals and the first results of the noise indicators obtained for the period January-June 2014 will be presented in this paper.

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