Question: A sag vertical curve joins a - 2 % grade and a + 1 % grade.if the point of vertical intersection PVI of the grades

A sag vertical curve joins a -2% grade and a +1% grade.if the point of vertical intersectionPVI of the grades is at station 535+25 and has an elevation of 90 m,determine the station and elevation of the beginning of vertical curveBVCand the end of vertical curveEVCprovided that K=60.Figure Q3 showsa layout of the curve.In addition,determine the tangent elevation of stations529+00and540+00.

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