On the Alignment Layout Tools toolbar, click Tangent-Tangent (With Curves).
Specify the start point.
Continue to specify points. Press Enter to end the command or select another command from the Alignment Layout Tools.
Curves are created to comply with the values in one of the following places:
If the alignment has design criteria applied to it, the minimum radius for the current design speed is applied to the curve. If no solution can be found with the minimum radius value, the curve is not drawn.
If the alignment does not have design criteria applied to it, the default value specified in the curve and spiral settings is applied to the curve.
On the Alignment Layout Tools toolbar, click Break-Apart PI.
In the drawing, pick a point near the PI you want to break apart.
Specify the distance to split the PI by picking two points or entering a value on the command line. This value is the distance each line is shortened from the PI.