Squealing noise in light rail transport systems: Implications in noise mapping

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F09%3A00164939" target="_blank" >RIV/68407700:21110/09:00164939 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Squealing noise in light rail transport systems: Implications in noise mapping
Original language description
Squealing noise is generated by railway vehicles riding through curves having closed radius. It is a result of wheels sliding on the rail when they negotiates a curve. This kind of noise has a characteristic spectrum that is dominated by discrete frequency components. Usually, squeal noise is not correctly accounted in urban areas noise maps. This paper presents the results of field measurements of squealing noise in Porto (Portugal) where a new light-rail system is operating. With the results obtainedfrom in situ measurements, the squealing noise was simulated using Cadna/A software. This paper compares three variants of squeal noise use and simulation with the software Cadna/A. Comparing the noise map generated using the field measurements, with maps taking no account for squealing noise, a large difference in noise levels can be found. A correction method was found to be incorporated in this model to improve the noise map estimation procedure.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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