The physical and psychoacoustic characteristics of construction noises

The construction noise from fifteen machies was measured at sevral construction sites, and physical and psychoacoustic parameters of the construction noises were analyzed. The analyzed physical parameters were SPLs and statistical percentile levels and the analyzed psychoacoustic parameters were loudness, sharpness, roughness, and fluctuation strength. The correlation coefficient and cluster analysis were conducted according to the one-third octave band frequencies and specific loudless in the critical band rate among the construction machine noises. The breaker has the largest variance between Lmax and Lmin, ranging between L10 and L90. The loudless of construction noises ranged between 21.8 and 98.7 sone, and the sharpness values ranged between 1and 3. The breaker has the highest roughness value relative to the other machines and the fluctuation strength of the pile driver and breaker are much higher than for the other construction machines.