The first objective of the acoustical design of rolling stock vehicles is the compromise between passenger comfort and the technical and economical means required to achieve it. Typically, global A-weighted sound pressure levels are used to evaluate acoustical such performance, but acoustical comfort is a complex phenomenon and it is difficult to find a single measure that fits all situations. This paper presents a novel approach to the study of one such special case: comfort experienced by passengers engaged in telephone conversations in a train. Noise inside the vehicle will affect the comfort of the telephone conversation, but we found a better measure of comfort than global dB(A) levels. Its definition, based on 1/3 octave band spectra, can be used since the beginning of the design of a new rolling stock to drive the acoustical design of passenger areas, including vestibules.
Acoustic Design of Rolling Stock for Comfortable Telephone Conversations
Notes Numerical Fluid Mech.
Noise and Vibration Mitigation for Rail Transportation Systems ; Chapter : 10 ; 118-125
2021-04-09
8 pages
Article/Chapter (Book)
Electronic Resource
English
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