Improvement of the acoustic environment inside the high-speed train stations depending on the increase of the train speed

• Main Authors: Haan, Chan Hoon, Park, Chan Jae
• Format: Conference Proceeding
• Language: English
• ISSN: 1939-800X
• DOI: 10.1121/1.4800894

The speed of trains has been increased due to the development of railway technologies. Recently, operation speed up to 400Km/h is come to effect in Korea. But, it can be easily predicted that noise and vibration could be increased depending on the speed of trains. Especially, train stations are exposed to much noises for 24-hours at the nearest place when high-speed trains stop or pass the terminals. In the present study, noise levels of the passing high-speed trains were measured in four different stations and noise levels at the speed up to 400Km/h were calculated. Also, the predicted noises were analyzed and compared with the interior noise criteria(NC-curve). As a result, it was found that the noise levels exceed 10dB higher than the noise standards in average when train speed was 350km/h. Based on the results, some design proposals are suggested to satisfy with the noise standards including reinforcement of walls and ceilings, change of finishing materials which can improve the sound insulation of rooms in the train stations.