The Transition Curve: By Offsets and by Deflection Angles

50-foot chords 88 Foot accuracy angle of transition arc excess argument backsight break in curvature centrifugal force circular arc circular curve CO CO CO co ift compound curve computed by 20 coordinates CORNELL UNIVERSITY curvature increases directly curve as usual DEFLECTION ANGLES fcSSSS feet FIELD PROBLEMS found from Table gives Hill Hill ift ift ift iiiii iiiii iiiii iiiiii iiiiii iiiiii instrument point interpolating ISSsS large central angles Length of curve measure the angle methods offset F old track ordinates Radius Required the data right triangle run the curve run the transition S8SSS second branch second differences short transition curves ssess SSS5S SSSgg ssss SSSSg ssssi SSSSS SSSSS Table III taken from Table TANGENT DISTANCE Tf ift track centers transit and chain TRANSIT NOTES Transition Curve added true transition curve Vernier