As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered is

Q. As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered is

A. horizontal tensile strain at the bottom of bituminous layer

B. vertical compressive strain on top of subgrade

C. vertical compressive stress on top of granular layer

D. vertical deflection at the surface of the pavement

Ans: vertical compressive strain on top of subgrade