A two-lane highway (one 3.6 m lane in each direction) with a design speed of 100 km/h goes from normal crown with 2% cross-slope to 6% superelevation by means of a spiral transition curve. The spiral curve is 50 m long. If the superelevation is attained by rotating the road section around its centreline, draw a cross section of the road at 10, 20 and 40 m from TS. (horizontal distances, and elevated heights must all be labelled in the drawing)