Acoustical design and noise control in metro stations: Case studies of the Ankara metro system
Date
2007Source Title
Building Acoustics
Print ISSN
1351010X
Volume
14
Issue
3
Pages
203 - 221
Language
English
Type
ArticleItem Usage Stats
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Abstract
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.
Keywords
Acoustical design strategiesAcoustical materials
Computer simulation
Underground metro stations
A-weighted sound levels
Acoustical design
Legislative requirements
Reverberation control
Room acoustical parameters
Sound absorbing materials
Speech transmission index
Underground metro
Architectural acoustics
Ceilings
Computer simulation
Reverberation
Subway stations
Design
Permalink
http://hdl.handle.net/11693/23389Published Version (Please cite this version)
http://dx.doi.org/10.1260/135101007781998910Collections
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