I need a formula for this specification. Here i have enclosed one Power point file. Actually this is for design of Bank road (slope road) in car simulator. You can see the picture, here we formed 4 lane road and each road is started in some deg of angle. For this i need a formula for each and every angle inbetween the cross section of the angle(like 0deg, 5 deg, 12deg,22deg, and 35deg).