Q$-3)(30$ P$)$ A horizontal curve is being designed for a new two$-$lane highway $(3\mathrm{.}6-$m lanes$)$ and the PI is at station $7+500$ is to be used. If the central angle of the curve is $40$ degrees, design a curve for the highway by computing the radius and stationing of the $PC$ and $)=(9\mathrm{.}81\frac{m}{s^2}$

If the last digit of your student ID number is odd, solve the above question using the following information.

The design speed is $110k\frac{m}{h}$ and the superelevation is $8\%$