Studying Bump at Bridge Approach of Short Subgrade with Oblique Prestressed Concrete Overlaying Asphalt Layer

Table 1

Relationship between weighted acceleration mean square root value and driving comfort.

Weighted acceleration mean square root value (m/s^2)	Human comfort
<0.315	Comfortable
0.315–0.63	Slightly uncomfortable
0.5–1	More slightly uncomfortable
0.8–1.6	Uncomfortable
1.25–2.5	Very uncomfortable
>2.0	Especially uncomfortable