Q$\mathrm{.}2.($a$)$ Draw a superelevated $($use the max. superelevation rate$)$ typical cross section of a rural two$-$way two$-$lane highway with its shoulders. The CS includes a single straight line on each side of the central line of the road. The highway type is a flexible pavement. The right side of the CS is connected with a cut slope within a soft rocky soil with a height of not more than $6m.$ The left side of the CS is connected with a fill slope with a height of $7m.$ Put all the required dimensions and slopes on the sketch. Do not use a median between the opposite directions. $($Use the Iraqi Highway Design Manual Specifications$).$

$(10$ marks$)$

$($b$)$ Discuss in details the figure shown below:

$(15$ marks$)$