In this study, will evaluate the performance of noise reduction devices for next generation high speed railway system of a train which has maximum speed over 400km/h. The core soundproof devices are the absorption block which reduces the reflection noise from concrete slab track and the interference device installed the top of noise barrier. Two types devices will be verified at 400km/h test section according to studied performance assessment at Hwang-san Kim-jae Chonbuk, Jeonbuk, Korea.

• 장강석(유니슨테크놀러지(주)) | Jang, Kang Seok
• 김영찬(유니슨테크놀러지(주)) | Kim, Young Chan
• 윤제원(유니슨테크놀러지(주)) | Yoon, Je Won
• 이지하(한국철도기술연구원) | Lee, Ji Ha
• 엄기영(한국철도기술연구원) | Eum, Ki Young