M Naveen
National Institute of Technology (NIT), Warangal
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Rithik Agrawal
National Institute of Technology Karnataka (NITK), Surathkal
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11 Other formulas that you can solve using the same Inputs

elevation of point x distant from PVC(point of vertical curvature)
Elevation of point x distance from PVC= Elevation of PVC+(Grade at beginning of curve*Distance of any point on the curve from the PVC)+(1/2)*(Rate of change of grade*Distance of any point on the curve from the PVC^2) GO
Elevation of PVC when elevation of lowest point on a sag curve is given
Elevation of PVC= Elevation of lowest point on a sag curve+((Grade at beginning of curve^2)/(2*Rate of change of grade)) GO
Elevation of lowest point on a sag curve
Elevation of lowest point on a sag curve= Elevation of PVC-((Grade at beginning of curve^2)/(2*Rate of change of grade)) GO
Rate of change of grade when distance from PVC to lowest point on a sag curve is given
Rate of change of grade= -(Grade at beginning of curve/Distance from PVC to lowest point on a sag curve) GO
Distance from PVC to Lowest Point on a Sag Curve
Distance from PVC to lowest point on a sag curve= -(Grade at beginning of curve/Rate of change of grade) GO
Length of curve when rate of change of grade is given in parabolic curves
Length of curve= (Grade at end of curve-Grade at beginning of curve)/Rate of change of grade GO
Elevation of PVI(point of vertical intersection) when elevation of PVC is given
Elevation of PVI= Elevation of PVC+(1/2)*(Length of curve*Grade at beginning of curve) GO
Elevation of PVC(point of vertical curvature)
Elevation of PVC= Elevation of PVI-(1/2)*(Length of curve*Grade at beginning of curve) GO
Central angle for portion of curve(exact for arc definition)
Central angle for portion of curve= (Degree of curve*Length of curve)/100 GO
Central angle of curve when length of curve is given
Central angle of curve=(Length of curve*Degree of curve)/100 GO
Degree of curve when length of curve is given
Degree of curve=(100*Central angle of curve)/Length of curve GO

1 Other formulas that calculate the same Output

Rate of change of grade when distance from PVC to lowest point on a sag curve is given
Rate of change of grade= -(Grade at beginning of curve/Distance from PVC to lowest point on a sag curve) GO

Rate of change of grade in parabolic curves Formula

Rate of change of grade= (Grade at end of curve-Grade at beginning of curve)/ Length of curve
R<sub>= (G<sub>2</sub>-<sub>1</sub>)/ L<sub>
More formulas
Length of curve when rate of change of grade is given in parabolic curves GO
Elevation of PVC(point of vertical curvature) GO
Elevation of PVI(point of vertical intersection) when elevation of PVC is given GO
elevation of point x distant from PVC(point of vertical curvature) GO
grade at beginning of curve when elevation of point x distant from PVC is given GO
Distance from PVC to Lowest Point on a Sag Curve GO
Rate of change of grade when distance from PVC to lowest point on a sag curve is given GO
Elevation of lowest point on a sag curve GO
Elevation of PVC when elevation of lowest point on a sag curve is given GO

What is rate of change?

Rate of change is defined as the rate at which one end is different from another end, and generally denoted by R.

How to Calculate Rate of change of grade in parabolic curves?

Rate of change of grade in parabolic curves calculator uses Rate of change of grade= (Grade at end of curve-Grade at beginning of curve)/ Length of curve to calculate the Rate of change of grade, The Rate of change of grade in parabolic curves formula is defined as the difference between the grade at end of curve and grade at beginning of curve upon the length of parabolic curves. Rate of change of grade and is denoted by R symbol.

How to calculate Rate of change of grade in parabolic curves using this online calculator? To use this online calculator for Rate of change of grade in parabolic curves, enter Grade at end of curve (G2), Grade at beginning of curve (1) and Length of curve (L and hit the calculate button. Here is how the Rate of change of grade in parabolic curves calculation can be explained with given input values -> -0.02 = (8-10)/ 100.

FAQ

What is Rate of change of grade in parabolic curves?
The Rate of change of grade in parabolic curves formula is defined as the difference between the grade at end of curve and grade at beginning of curve upon the length of parabolic curves and is represented as R2-1)/ L or Rate of change of grade= (Grade at end of curve-Grade at beginning of curve)/ Length of curve. Grade at end of curve can be described as the grade at one end of the parabolic curve, Grade at beginning of curve can be described as the grade at the beginning of the parabolic curve and Length of curve is defined as the arc length in a parabolic curves.
How to calculate Rate of change of grade in parabolic curves?
The Rate of change of grade in parabolic curves formula is defined as the difference between the grade at end of curve and grade at beginning of curve upon the length of parabolic curves is calculated using Rate of change of grade= (Grade at end of curve-Grade at beginning of curve)/ Length of curve. To calculate Rate of change of grade in parabolic curves, you need Grade at end of curve (G2), Grade at beginning of curve (1) and Length of curve (L. With our tool, you need to enter the respective value for Grade at end of curve, Grade at beginning of curve and Length of curve and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Rate of change of grade?
In this formula, Rate of change of grade uses Grade at end of curve, Grade at beginning of curve and Length of curve. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Rate of change of grade= -(Grade at beginning of curve/Distance from PVC to lowest point on a sag curve)
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