| Title |
A Study on the Evaluation of Acoustic Characteristic in Underground Subway Stations in Seoul |
| Authors |
이상우 ; 정대업 ; 이수열 ; 차상곤 ; 심명석 |
| Keywords |
Noise level in underground station ; Under-platform section ; line-side section ; Ceiling material ; |
| Abstract |
This study aims at providing useful data for the design of underground stations through an extensive survey of acoustic properties in underground stations in Seoul. In order to improve the sound efficiency at the underground station, sound characteristics in the space of the underground station were studied. Architectural features of underground stations located in Seoul were examined by visiting every site and analyzing drawings. The distinction in architectural features of this study resulted in the line-side section, the shape of under-platform section and ceiling material. Number of underground stations was selected and categorized based on architectural features, such as line-side section, the shape of platform section and ceiling material. Each selected station was revisited and the noise levels were measured and compared with the architectural features. The study found that the Sum-Sik type is more efficient than the one of the Sang-Dae-Sik type, which can be used for subway stations. The semi-circular section for the railway-side seems to contribute on the attenuation of noise transmitting from trains to the platform. In addition, the aluminum absorbing panel, net luber and zinc plate (panel 40% and net 60%) as ceiling meterial are more efficient than the horizontal aluminum spendral panel, vertical aluminum spendral panel with line and zinc plate (panel 40% and net 60%), respectively. |