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

Figure 14

Vibrations of the rail and one-third octave band spectra for different train speeds □ 160, ○ 125, △ 100, + 80, and × 63 km/h, (a) surface line, (b) bridge line, and (c) tunnel line.

(a)

(b)

(c)