Question: PROBLEM # 3 : A symmetric summit parabolic curve has tangents that slope at + 6 % and - 4 % respectively. The change of

PROBLEM #3: A symmetric summit parabolic curve has tangents that slope at +6% and -4% respectively. The change of grade per 20m station is 0.05%. The curve starts at PC with Sta 12+600 and Elev. 210.
a. Determine the total length of curve required.
b. Determine the location of the highest point of the curve prom PC.
c. Determine the elevation of the summit.

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