The station of a PI of a horizental curve is 60+20. The horizental curve has a degree of 4 and a length of 400ft. the othere given design perameters include. Superelevation runoff rate is 1/400. width of the pavement is is 15ft. normal crown slope is 2%. all maximum superelevation is 8%. find the following.
1. Station of PC and PT.
2. station where tangent runout starts
3. superelevation at station 58+00.