As per IRC:37-2012, in order to control subgrade rutting in

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M: +1.00/-0.33

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

[GATE CE 2018 Set 2]

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