Research Article

Simultaneous Measurements of the Vehicle, Track, and Soil Vibrations at a Surface, Bridge, and Tunnel Railway Line

Figure 9

Vibrations of the railway vehicle (a) and the tracks of the surface line (b), the bridge line (c), and the tunnel line (d) due to the passage of the measuring car with  km/h; one-third octave band spectra.
(a)
(b)
(c)
(d)