An equal-tangent vertical curve is to be constructed between grades of -3% and +2% (travelling left to right). The PVI is located at 4+550.000 and has an elevation of 190m. An adjacent driveway to the new road being designed must maintain accessibility. In order to abide this design constraint the elevation of the road at station 4+650.000 must be 193m. If the vertical curve is designed using the general equation of a parabola: y = ax²+bx+c, which of the following options presents the correct expression for the constant "c" (all equations are expressed in metres)

Q: to 0.5%. gth of curve.

A: Length :L=Ar=(1.5+3)0.5×100=900m

Q: An equal tangent vertical curve is to be constructed between grades of -6.75% (initial) and 4.75%…

A:

Q: 8, Horizontal Alignment Design - A horizontal curve has a deflection angle of 60 degree and a radius…

A: Radius of curve (R) = 300m Deflection angle (∆ or α) = 60°If the length of the curve is equal to…

Q: b. Location of the summit from PT.

A: GivenPVI=35+300PVIelv=210so,PVCsta=35300-L2PVCelv=210-(0.061)L2Equation of the…

Q: Problem 2 A symmetrical vertical summit curve has tangents of +5% and -3%. The allowable rate of…

A:

Q: 3.9 An equal-tangent crest curve connects a +2% initia grade with a -1% final grade, and is designed…

A: Given data: Intial grade=+2% Final grade=-1% Speed on the curve=55 mi/h Station of PVI=233+40…

Q: A 1600-ft-long equal tangent sag vertical curve has the PVI at station 120+00 and elevation…

A: Given:- PVI station = 120+00 Elevation = 1500 ft Initial grade =-3.5% Final grade =+6.5% To find:-…

Q: A vertical equal-tangent, 100O ft long, connects an initial grade of -2.5% and a final grade of +2%.…

A:

Q: A symmetrical vertical summit curve has tangents of +4% and -2%. The allowable rate of change of…

A: Given Data: g1=+4% ,   g2=-2% Rate of change of grade=r=0.3% Stationing of PT= 10+020 Elevation of…

Q: 1. An equal-tangent crest vertical curve is being designed connects grades of 1.3% and -2.4% in the…

A:

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