Experimental Study on the Vibration Control Effect of Long Elastic Sleeper Track in Subways

Table 3

Overall vibration levels of the tunnel wall and ground in straight track (1–200 Hz) (dB).

Measuring point position	Common ballastless track	LEST	Insertion loss
Bottom of the tunnel wall	100.95	90.43	10.52
Point on the tunnel wall at 1.5 m height	79.88	70.28	9.60
Ground	71.73	62.89	8.84