Predicting the Remaining Service Life of Civil Airport Runway considering Reliability and Damage Accumulation

Table 5

Mean and coefficient of variation of the random variables.

Random variable	Surface thickness	Flexural strength	Modulus of surface course	Modulus of base reaction
Mean	0.38 m	4.5 MPa	38.54 GPa	100 MPa
Coefficient of variation	0.03	0.15	0.09	0.3