Adding a Fixed Vertical Curve with Two Points and a Parameter

2012-03-14

Product Documentation

Intermediate

Specify two pass-through points and a K value or minimum radius.

The illustration shows a fixed curve defined by a start point (1), end point (2), and a minimum radius (3):

To add a fixed vertical curve with two points and a parameter

Click the profile. Click Profile tabModify Profile panelGeometry Editor.
On the Profile Layout Tools toolbar, click Fixed Vertical Curve (Two Points, Parameter).
Specify a start point.
Specify an end point.
Do one of the following:
- To specify a crest curve, press Enter.
- To specify a sag curve, enter S (sag).
Do one of the following:
- Specify a K value.
- To specify a minimum radius for the curve parabola, enter R (radius), and then specify the radius.
  
  Note
  If the profile was created using the criteria-based design feature, a default value is displayed on the command line. Minimum K values at given design speeds are specified in the design criteria file . Minimum curve length and radius are calculated from the minimum K value at the current design speed.