formulaforverticalcurve20m
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Formula For Vertical Curve at 20 m interval
Super Elevation
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BVC Station77760Raduis1000.000
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BVC Elevation1279.000
width of carrirage way (G)
7.300 Data input
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i1 (grade 1)-0.417%
Data input
Speed km/h80.000
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i2 (grade 2)0.371%
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Length of 80
Speed m/second
22.222
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vertical curve
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Y1-0.315StationElevationElevationElevation
Slope / meter
0.05033916009
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K-0.0000492187510+000900.000901.500903.000slope %5.034
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StationDesign levelRaduis500.000
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BVC777601279.000BVCG1 1.0%y1
width of carriage way (G)
7.300
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777801278.936G2 -1.5 %
Slope / meter
0.101
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778001278.912LVC= 300899.25
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778201278.927
Speed / m / second
22.222
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778401278.982
x = distance from BVC to required station
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778601279.075
k = y1 / LVC 2
Speed km / h
80.000
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778801279.209
shift = x 2 * k
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779001279.381
elevation = grade level - shift
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779201279.593
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779401279.845
BVC station = 10+000
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779601280.135
BVC level = 900.000
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779801280.465
LVC=300.00m
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780001280.835y 1 =3.750
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780201281.244
k = 0.0000416666
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780401281.692
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780601282.180
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780801282.707
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781001283.273
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781201283.879
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781401284.524
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