Uncertainty analysis in the assessment of long-term noise indicators

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Authors

  • W. Batko AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Mechanics and Vibroacoustics, Al. Mickiewicza 30, 30-059 Kraków, Poland
  • R. Bal-Pyrcz State Higher Vocational School in Krosno, Institute of Technology, Wyspiańskiego 20, 38-400 Krosno, Poland

Abstract

This study addresses the assessment conditions of long-term noise indicators based on irregular noise monitoring data. Variations of $L_{\textrm{ DEN}}$ estimates (day – evening – night noise indicator) on different days of the week were examined. Two hypotheses are verified: that mean estimates shall be identical on all days of the week and that variances of thus obtained estimates are homogeneous. The data for statistical analyses were noise levels recorded in one year by an on-line noise monitoring system in Kraków.

Keywords:

environmental noise, acoustic monitoring, statistical analysis.

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