Use the approximate Odemark approach to determine the interface deflection under the centerline of a tire with a $6$ inches radius, carrying a load of $10,000lb$ resting on $15$ inches thick asphalt concrete layer placed on top of a subgrade of infinite depth. The layer moduli are $300,000$ and $25,000$ psi respectively, and $$ is $0\mathrm{.}5$ for both layers. Repeat the computations for the previous question using the Burmister approach and layered$-$elastic analysis software. Compare the results.