Vibration Effect Produced by Raised Pavement Markers on the Exit Ramp of an Expressway

Table 3

The relationship between the human subjective feeling and the combined total weighted acceleration RMS.

The combined total weighted acceleration RMS m/s^2	Human subjective feeling	The level of the vibration warning effect
<0.315	No discomfort	I
0.315-0.63	A little uncomfortable	II
0.5-1.0	Less comfortable	III
0.8-1.6	Uncomfortable	IV
1.25-2.5	Very uncomfortable	V
>2.0	Extremely uncomfortable	VI