Add a free parabolic vertical curve.
Specify the curve by length, a pass-through point, or a K value.
The illustration shows a free curve between entities 1 and 2, specified with a length parameter 3.
To add a free parabolic vertical curve
- Click the profile. Click Profile tab
Modify Profile panelGeometry Editor
. - On the Profile Layout Tools toolbar, click
Free Vertical Parabola (PVI Based). - In the profile view, select a location near the PVI to which you want to add a curve.
- Enter one of the following parameters to complete the curve definition:
- Length: Enter L.
- Pass-Through Point: Enter P
- K Value: Enter K.
NoteIf the profile was created using the criteria-based design feature, a default value is displayed on the command line. Minimum K values at a given design speed are specified in the design criteria file . Minimum curve length and radius are calculated from the minimum K value at the current design speed.