An unsymmetrical parabolic curve has a forward tangent of -8% and a backward tangent of 5%. The length of the curve on the left side (PVC) is 60m. and the vertex is at station 0+500 is at elevation of 100m. The elevation of the road just below the vertex is 97.3m. a. Calculate the total length of the unsymmetrical curve. b. Find the stationing of the highest point. С. Find the elevation of station 0+550.

Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter15: Geometric Design Of Highway Facilities
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An unsymmetrical parabolic curve has a forward tangent of -8% and a backward tangent
of 5%. The length of the curve on the left side (PVC) is 60m. and the vertex is at station 0+500 is at
elevation of 100m. The elevation of the road just below the vertex is 97.3m.
а.
Calculate the total length of the unsymmetrical curve.
b. Find the stationing of the highest point.
С.
Find the elevation of station 0+550.
Transcribed Image Text:An unsymmetrical parabolic curve has a forward tangent of -8% and a backward tangent of 5%. The length of the curve on the left side (PVC) is 60m. and the vertex is at station 0+500 is at elevation of 100m. The elevation of the road just below the vertex is 97.3m. а. Calculate the total length of the unsymmetrical curve. b. Find the stationing of the highest point. С. Find the elevation of station 0+550.
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