(Solved): The sketch below shows the centre line of the vertical alignment of a 2-lane, two-way rural road. ...

The sketch below shows the centre line of the vertical alignment of a 2-lane, two-way rural road. The given elevation of point BVC1 is for the finished road surface. 3.1 Determine the chainages of PVI 1, EVC1, EVC2, highest point on curve 1 and lowest point on curve \( 2 . \) 3.2 Calculate the elevations of \( P V 1, E V C 1, B V C 2, E V C 2 \), and highest point on curve1. (5) 3.3 Develop the curve equation \( \left(Y=a x^{2}+b x+c\right) \) for curve 1 . (4) 3.4 Do the necessary calculations and find out if a climbing lane is required. (3) \( 3.5 \) Check if the provided length for curve 2 meets the minimum vertical curvature given in the TRH17). given in the TRH17). 3.6 Compute the available sight distance over curve 2 . answer to TRH17 recommendation and advise if a solid centre line is necessary on this curve for \( 80 \mathrm{~km} / \mathrm{h} \) speed. 3.8 Briefly discuss the surface drainage requirements for this road section.