Highway Maintenance

Question 1
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
GATE CE 2018 SET-2   Transportation Engineering
Question 1 Explanation: 
As per \mathrm{IRC}: 37-2012
N=4.1656 \times 10^{-0.08}\left[\frac{1}{\epsilon_{V}}\right]^{4.5337}


N=1.41 \times 10^{-8}\left[\frac{1}{\epsilon_{v}}\right]^{4.5337}
where N= No. of cumulative standard axle
\epsilon_{v}= Vertical strain in the subgrade
Question 2
Road roughness is measured using
A
Benkelman beam
B
Bump integrator
C
Dynamic cone penetrometer
D
Falling weight deflectometer
GATE CE 2012   Transportation Engineering
There are 2 questions to complete.

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