Volume: 2, 2023
2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: T066
DOI: https://doi.org/10.24326/ICDSUPL2.T066
Published online: 19 April 2023
ICDSUPL, 2, T066 (2023)
Acoustic effectiveness of noise mitigation measures against railroad noise
Marcin Wrótny1*
1 Department of Roads and Bridges, Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 38D, 20-618, Lublin, Poland
* Corresponding author: m.wrotny@pollub.pl
Abstract
The phenomenon of traffic noise is a well-known negative impact associated with people in their daily lives. It causes negative feelings such as dissatisfaction or irritation, and its excessive impact, can lead to health problems of residents and even hearing loss. Noise generated by rail traffic with levels exceeding permissible values affects more than 22 million people worldwide. Over the past several decades, many noise mitigation measures have been developed and introduced. When choosing a method of protection, it is necessary to pay attention to a number of factors on which its level depends. And one of the most important is the acoustic effectiveness of noise protection, and the purpose of this work is to compare selected noise mitigation methods. The basic indicator for the numerical description of the acoustic climate is the equivalent noise level LAeq. This parameter defines the value of acoustic pressure level of a continuous sound, corrected according to the frequency characteristics A, which in a defined reference time interval is equal to the aver-age square of acoustic pressure of the analyzed sound with time-varying level. The results of rail noise measurements were obtained by performing in-situ tests under real conditions as part of the pass-by test. The research focused on the acoustic effectiveness of rail noise protection devices. Based on results, the acoustic effectiveness of such protections as noise barriers, rail absorbers, rubber pads, sleeper pads and lubricators was compared. The most effective method is noise barriers, but it should be remembered that they are applicable in the immission zone and have a number of disadvantages. On the other hand, among the acoustic protections used in the emission zone, rail dampers have the highest acoustic effectiveness.
How to cite
M. Wrótny, 2023. Acoustic effectiveness of noise mitigation measures against railroad noise. In: 2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL2.T066