Study on Regular Inspection Frequency of Bridge Based on Seismic Vulnerability Analysis

Table 8

Basic statistical parameters of the main variable (vehicle detour).

Variables	Estimated value	Variables	Estimated value
Running costs for cars	0.4 ¥/km^a	Running costs for trucks	0.56 ¥/km^a
Vehicle occupancies for cars	1.5^a	Vehicle occupancies for trucks	1.05^a
ADTT/ADT ratio	0.12^a	Time value of a cargo	3.81 ¥/h^a
Wage for car drivers	23.36 ¥/h^b	Wage for truck drivers	29.28 ¥/h^b
The traffic speed on the roundabout line	80 km/h^b	The traffic speed on the undamaged bridge	100 km/h^b

^aBased on [22]. ^bBased on [40].