Add a floating reverse curve with spirals in situations where you need two back-to-back reverse transition spirals and the curve geometry must pass through a specified point.
Floating reverse curves are defined by either a radius and through point or two through points.
Tip
You can use transparent commands when you are prompted to specify direction, radius, or length, or use station offsets to specify any points. For more information, see Transparent Commands.
Tutorial Exercise: Adding Floating Curves to an Alignment
Topics in this section
- Adding a Floating Reverse Curve with Spirals with a Specified Radius and Through Point to a Curve
Add a floating reverse spiral-spiral-curve group, with a specified radius and pass-through point, to a curve.
- Adding a Floating Reverse Curve with Spirals with Two Through Points to a Curve
Adds a floating reverse spiral-spiral-curve group, with two specified pass-through points, to an existing curve.