Safety Management in Sea Reclamation Construction: A Case Study of Sanya Airport, China

Table 5

Noise influence range of construction machines.

Noise source	Noise threshold (dB(A))		Standard distance (m)
	Day	Night	Day	Night
Piling machine	70	55	89	500
Bulldozer	70	55	50	283
Loader machine	70	55	36	200
Cement vibrator	70	55	63	353