In: Civil Engineering
The rate of change of the grade of a parabolic summit curve is 0.5%. The grade of ascending and descending tangents are 6% and -2.0% respectively. The elevation of VPT is 200 ft at Sta 15+80. Determine the:
a) length of curve;
b) elevation of the summit,
c) location of the summit;
d) the vertical distance from VPI to the curve;
e) elevation at Sta 06+80.