Evaluation of Road Service Performance Based on Human Perception of Vibration While Driving Vehicle

Table 1

Modification value of vertical effective acceleration within the center frequency.

Octave band center frequency (Hz)	1	2	4	8	16	31.5	63
Cutoff frequency (Hz)	1.4	2.8	5.6	11.2	22.4	45	90
Vertical modified vibration power level (dB)	−6	−3	0	0	−6	−12	−18