š Vertical Curve Calculator
Calculate vertical curve elements including elevations, K-values, and sight distances. Support for crest and sag vertical curves with symmetric and asymmetric designs.
K = L/|A| where L = curve length (m), A = algebraic difference of grades (%)
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Vertical Curve Inputs
Curve Type
Crest Curve
Sag Curve
Design Speed (V) in km/h
Grade 1 (gā) in %
Enter as positive for uphill, negative for downhill
Grade 2 (gā) in %
Enter as positive for uphill, negative for downhill
PVI Elevation (m)
PVI Station (m)
Stationing from project start
Curve Length (L) in meters
Leave blank to calculate based on design criteria
Eye Height (m) for Sight Distance
Driver eye height above road surface
Object Height (m) for Sight Distance
Object height above road surface
Stopping Sight Distance (m)
If left blank, will calculate from speed
Calculate
Results
Enter curve parameters to see detailed vertical curve analysis.
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