Vehicle Ride Comfort Analysis Based on Vehicle-Bridge Coupled Vibration

Table 1

The relationship among the ride comfort level, weighted vibration level, and total weighted acceleration RMS value.

Weighted vibration level Leq (dB)	Total values of the weighted RMS acceleration (m/s^2)	Reactions
< 110	< 0.315	Not uncomfortable
110∼116	0.315∼0.63	A bit uncomfortable
114 ∼120	0.5∼1	Somewhat uncomfortable
118∼124	0.8∼1.6	Uncomfortable
122∼128	1.25∼2.5	Very uncomfortable
> 126	> 2.0	Extremely uncomfortable