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박태호(Taeho Park),한종원(Jongwon Han),류훈재(Hunjae Ryu),고준희(Junhee Ko),장서일(Seoil. Chang) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
The railway system in Korea is developing more and more rapidly. After development the next generation hi-speed train(HEMU-400X) Korea can compete against developed country. But speed increasing will cause the greater rolling and aero dynamic noise. In this study shows that measurement noise of the KTX train by 300kn/h class and KTX-Sancheon train by 350km/h class. The measurements are carried out on open area and noise protection barrier installed area. The microphones were placed at a distance of 3m from the center line of the track at a height of 0.5m above the upper surface of the rail and at a distance of 7.5m from the center line of the track at a height of each 0.6m above(Max 3.6m) the upper surface of the rail. One microphone was placed at a distance of 25m for check the environmental noise.