A right handed curve on a two way road has its BC at Ch 1420 and its EC at Ch 1680. The superelevation rate is 0,06 m/m and the superelevation development (run-off) length is 60 m. The center line of the road is on a straight grade of 2,400000% and the level at Ch 1300 is 17,23. The road has a normal camber of 2,00%.

a. Calculate the levels on the same center line and on the left and right edges every 20 m between Ch 1300 and Ch 1760 if the width of the surfacing is 7,4 m and the pavement surface is rotated about the center line. Make a sketch of the superelevation development (run-off) at both BC and the EC.

b. Repeat the exercise for a left handed curve using the same information and data as above.