Development of Inspection Robots for Bridge Cables

Table 2

Accelerometer-based cable monitoring systems in different countries [11].

Bridge	Nation	Main span (m)	Total number of cables (a)	Number of cables installed with accelerometer (b)	Ratio (𝑏/𝑎, %)
Seo-Hae	Republic of Korea	470	144	24	16.7
Jin-Do	Republic of Korea	344	60	18	30.0
Tatara	Japan	890	168	4	2.4
Jintang	China	620	168	20	11.9
Rion-Antirion	Greek	560	368	13	3.5
Oresund	Denmark	490	160	16	10.0
Fred Hartman	USA	381	192	19	9.9