In common with many industries today the rail industry has to meet many noise and vibration requirements. The impact of train pass-by noise on the surrounding environment is of particular importance where high-speed lines operate and where new railways are being designed. The work presented in this paper demonstrates how predictive methods can be used to quantify the structure-noise levels radiated from a railway viaduct during a train pass-by event and demonstrates the accuracy of the solution by making comparisons with noise measurements made around an existing operating viaduct. Predicted and measured structure-borne noise, in the frequency range below 300Hz, for a particular viaduct during the passage of a high-speed passenger train is then presented. A-weighted sound exposure levels in the 1/3~(rd) octave band along with total noise levels are compared and shown to be in good agreement.
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