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

Figure 2

Measurement points of the test train (passenger car), axle boxes A1 and A2, bogie points B1 and B2, and carriage points C1 and C2, on the right hand side; A3, A4, B3, B4, C3, and C4 are located symmetrically on the left hand side.