Two tangents intersect at chainage 6+980, the deflection angles being 48°30'. Calculate the necessary data for setting out a curve of 15m chains radius to connect the two tangents if it is intended to set out the curve by offsets from chords. Take peg interval equal to 100 links, length of the chain being equal to 20m.
e. Siddhartha highway has a curve of 625 m radius is to be set out connect two straights. The maximum speed of the moving vehicles on this curve is restricted to 90km/hr. Transition curves are to be introduced at each end of curve. Calculate a) length of transition b) shift of circular curve c) chainage of the beginning and end of curve d) tangential off set of first junction point. Take peg interval 20m in circular curve and 10m in transition curve, angle of intersection 100°24'
In a road alignment a grade of -1% in fall.