An Experimental Investigation into the Difference in the External Noise Behavior of a High-Speed Train between Viaduct and Embankment Sections

<div>Spectrum of the sound power level of the train running in the viaduct and embankment sections at different speeds. (a) Sound power level spectrum at 160 km/h. (b) Sound power level spectrum at 200 km/h. (c) Sound power level spectrum at 250 km/h. (d) Sound power level spectrum at 300 km/h. (e) Sound power level spectrum at 350 km/h.</div>

Shock and Vibration

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Figure 8

Figure 8: An Experimental Investigation into the Difference in the External Noise Behavior of a High-Speed Train between Viaduct and Embankment Sections 

Figure 8 | An Experimental Investigation into the Difference in the External Noise Behavior of a High-Speed Train between Viaduct and Embankment Sections 