Acoustical design and noise control in metro stations: Case studies of the Ankara metro system
203 - 221
Item Usage Stats
The aim of this research is to demonstrate the importance of initial strategies in acoustical design of underground metro stations. The paper searches for practical design solutions by evaluating different materials for providing optimum acoustical conditions in such spaces. Acoustical designs of three metro stations on a new expansion line in Ankara including Sogutozu, Bilkent and ODTU metro stations are presented through computer simulation. Predictions of room acoustical parameters are presented for both platform and ticket office floors in terms of parameters like reverberation time (RT), speech transmission index (STI) and A-weighted sound level (SPL) distribution within spaces. Simulated reverberation times are evaluated in view of legislative requirements. The study confirms the importance of using sound absorbing materials on the ceiling and sidewalls together. The nonwoven material, used behind perforated metal suspended ceilings, has proved effective in reverberation control.
KeywordsAcoustical design strategies
Underground metro stations
A-weighted sound levels
Room acoustical parameters
Sound absorbing materials
Speech transmission index
Published Version (Please cite this version)http://dx.doi.org/10.1260/135101007781998910
Showing items related by title, author, creator and subject.
Recognition of vessel acoustic signatures using non-linear teager energy based features Can, Gökmen; Akbaş, Cem Emre; Çetin, A. Enis (IEEE, 2016-10)This paper proposes a vessel recognition and classification system based on vessel acoustic signatures. Teager Energy Operator (TEO) based Mel Frequency Cepstral Coefficients (MFCC) are used for the first time in Underwater ...
Wave propagation and acoustic band gaps of two-dimensional liquid crystal/solid phononic crystals Oltulu, O.; Mamedov, A. M.; Özbay, Ekmel (Springer Verlag, 2017)The vast majority of acoustic wave propagation in phononic band studies has been usually carried out by scattering inclusions embedded in a viscoelastic medium, such as air or water. In this study, we present calculated ...
A wideband and a Wide-Beamwidth acoustic transducer design for underwater acoustic communications Elmaslı, I. Ceren; Köymen, Hayrettin (IEEE, 2007-05)This paper is concerned with the design of an efficient, wideband and a wide-beamwidth resonant acoustic transducer for high frequency use. The general transducer structure which has two back-to-back quarter wave thick 1-3 ...