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Vertical Curve
To calculate the parameters of a vertical curve and find stations and elevations for points on a vertical curve:
- elevation and station of the PVI Point (point of the vertical intersection),
- elevation and station of the PVC point (start point of the vertical curve),
- elevation and station of the PVT point (end point of the vertical curve),
- elevation and station of the Hi/Low point (the highest or lowest point of the vertical curve parabola),
- elevation of desired station,
- station(s) of desired elevation,
- Curve Length - horizontal distance between PVC and PVT points,
- Deflection angle - the intersecting angle between begin grade tangent and end grade tangent.
- In the Input tab, specify the vertical curve parameters for use in calculation:
- Select one of the vertical curve parameters Curve Length, High/Low Elevation or Point on Curve to use it in calculation.
- Select either the start point of the vertical curve (PVC) or point of vertical intersection (PVI) and specify the station and elevation for this point.
- Specify the Begin Grade and End Grade of the vertical curve.
- If you selected the Curve Length parameter, specify the Curve Length value.
- If you selected the Point on Curve parameter, specify the Pt. Station (chainage) and Pt. Elevation for this point.
- If you selected the High/Low Elevation parameter, enter the elevation in the Hi/Lo Elevation field.
- Specify the Find Station (chainage) value to calculate the elevation of the point at the desired station or specify the Find Elevation value to calculate the station(s) of the point(s) with the desired elevation.
- Check the displayed preview of the vertical curve in the vertical plane.
- Click the Calc button
to calculate the parameters of the vertical curve.
- In the Results tab, review the results of the calculation and click
to save the data to *.txt file, if required:
- Curve Length of the curve.
- Begin Grade of the curve.
- End Grade of the curve.
- Deflection Angle of the curve.
- Station and Elevation for the PVC Point.
- Station and Elevation for the PVI Point.
- Station and Elevation for the PVT Point.
- Station and Elevation for the HI/Low Point.
- Station and Elevation for the Point 1 (Find Station or Find Elevation).
- Station and Elevation for the Point 2 (Find Elevation).
- The Drawing tab shows the illustration for the results and supports generation of a field report with the results of calculation (use the Create Field Report command from the context menu).
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