Results 221 to 230 of about 109,455 (267)

European cooperative on railway noise

Noise Control Engineering Journal, 2001
Discussions are underway in Europe between railways and the various directorates of the European Commission with the objective of implementing European Union policy to transfer traffic from road to rail without having a detrimental effect on the noise environment next to railways.
Brian Hemsworth, Peter Hubner
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Measures to abate railway noise

INTER-NOISE and NOISE-CON Congress and Conference Proceedings
An important environmental issue in densely populated areas, such as Germany or France, is the problem of noise. Traffic noise from cars, railway vehicles and airports located in close proximity to the city is not only annoying for residents; it also leads to serious health issues and has an enormous negative economic impact. Unlike road traffic noise,
Rene WEINANDY, Percy APPEL
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Reactions to railway noise in Denmark

Journal of Sound and Vibration, 1983
Abstract People's reactions to railway noise were studied along seven Danish railway lines with traffic intensities from 30 to about 300 trains per 24 hours. The calculated sound levels varied between 43 and 71 dB(A) for LAeq,24h and between 78 and 102 sB(A) for LAmax. 615 persons were interviewed. One third of these felt strongly or somewhat annoyed
T.V. Andersen, K. Kühl, E. Relster
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Noise from railway bridges

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 1999
Although it has long been recognized that when a train passes over a bridge there is frequently an increase in noise levels, accurate prediction of this phenomenon is often neglected. Using a modified version of AEA Technology Rail's ‘re-radiated noise’ model and data on existing bridges, this paper shows how the noise from a bridge can be predicted ...
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Railway noise propagation models

Journal of Sound and Vibration, 1990
Abstract In this paper is presented a model to calculate the sound event level and thereby the energy equivalent level for short-distance railway noise propagation in a town. A model of the ground effects on the propagation from line sources, regarded as an incoherent superposition of point sources, is presented and discussed for spherical and ...
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Analysis and design of a low-noise railway wheel

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2001
The design and construction of a new ‘constrained layer’ damping treatment for railway wheels is presented. A numerical procedure was used for the loss factor calculation. This procedure, first verified on a plate by means of experimental modal analyses, allowed the best treatment thickness and arrangement to be chosen among those commercially ...
CERVELLO S., DONZELLA, Giorgio, POLA, Annalisa, SCEPI M.   +3 more
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The relative importance of noise and vibration from railways

Applied Ergonomics, 1990
An experiment was conducted to determine the subjective equivalence of railway noise and railway-induced building vibration, and hence the relative importance of the two stimuli. Six magnitudes of whole-body, vertical (z-axis) vibration and six levels of noise were presented simultaneously to each of 30 subjects in all 36 possible paired combinations ...
Howarth, H.V.C, Griffin, M.J.
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IMPROVED MEASUREMENT METHODS FOR RAILWAY ROLLING NOISE

Journal of Sound and Vibration, 2000
Some of the issues related to railway noise type testing are discussed and potential improvements to existing procedures are put forward. New and improved methods that also go beyond the scope of type testing are presented that help to characterize and analyze rolling noise more accurately.
Dittrich, M.G., Janssens, M.H.A.
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The prediction of railway noise profiles

Journal of Sound and Vibration, 1974
A method is described for predicting the rise and decay of the noise (the noise profile) of a passing train. There are two principal assumptions in developing the method: (a) the rail head and wheels are in good condition; (b) the train noise is primarily rail-wheel noise.
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The importance of railway noise in France

Journal of Sound and Vibration, 1979
A national survey on environmental nuisances due to all forms of transport was made in France during 1977. From among the data gathered, it is possible to extract results concerning the impact of nuisance due to railways, partly from results of questionnaires and partly from results of acoustical measurements.
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