Prediction of the Environmental Noise of High-speed Railway Cars Crossing a Concrete Bridge

초록

In this paper, an engineering model for the noise source of high-speed railways is presented and applied to predict the environmental noise around a concrete bridge. The source consists of the rail, wheel, traction and aerodynamic source components as shown in Figures 1 and 2, and their acoustic strengths in Korean high-speed railway systems were estimated in octave-band frequencies using a rolling noise model and pass-by noise measurements [3].