Level across $x-$section at each station with $1$:$2$ side slopes.

Deflection Angle $=50$

Chainage of $\frac{?}{PI}=450m.$

Perception$-$Reaction Time $=2\mathrm{.}5sec.$

Braking efficiency $=50\%.$

Coefficient of longitudinal friction $=0\mathrm{.}4.$

$e_{\text{m}\text{a}\text{x}}=0\mathrm{.}067.$

${}_{\text{m}\text{a}\text{x}}=0\mathrm{.}15.$

Hesitation time $=2sec.$

Speed of overtaking vehicle $=70kph.$

Speed of overtaken vehicle $=40kph.$

Length of design vehicle $=15m.$

Rate of change of centrifugal acceleration $=0\mathrm{.}5\frac{m}{se{c}^3}.$

Note: Assume any necessary additional values.