Q$2.$ Using in$-$depth engineering knowledge to solve wide$-$ranging road geometrics issues, youare required to design a horizontal curve road with a combination of circular and two spiral curves for $90k\frac{m}{h}r$ at deflection angle of $16{30}^3,$ side friction of $0\mathrm{.}10,$ superelevation of $5\%$ and radial acceleration of $0\mathrm{.}8\frac{m}{s^3}.$ Applying abstract thinking in engineering practice with consideration of public safety and environmental for safe traffic operation, produce a technical design indicating minimum radius for circular curve, length of transition and circular curve as well as total length of the curve.