$1-$ Plot the shown longitudinal sections $(A-$A and $(B-B)$ on graph paper using a proper horizontal and vertical scales.

$2-$ If a $(20$ m wide$)$ highway with a gradient of $1340$ is to pass the area from east to west along section $($A$-$A$)$ with a starting formation level $=463\mathrm{.}90m$ at the starting point. The side slope of the street formation is $1$:$1.$ Draw the cross$-$section of the street at the shown location $($station $20)$ on a graph paper to a horizontal scale of $1$:$100$ and vertical scale of $1$:$50.$