Optimization of Multiple Tuned Mass Dampers for Road Bridges Taking into Account Bridge-Vehicle Interaction, Random Pavement Roughness, and Uncertainties

Table 1

Geometric mean of the reference PSD for each road class.

Road class	Degree of roughness, (10^−6 m^3)
A	16
B	64
C	256
D	1024
E	4096
F	16384
G	65536
H	262144