"Superelevation" is the banking of a road along a horizontal curve so motorists can safely and comfortably maneuver the curve at design speed. Define a superelevation for an alignment and apply it to a corridor template.

Following are the basic steps for this workflow. For more detailed instructions, see Create and Edit Superelevations.

Steps:

Commands:

1.

Use the Alignment Editor to apply superelevation parameters to the horizontal alignment in your project.

Enter superelevation properties for each curve in the alignment on the Superelevation tab. Click the Superelevation Diagram button to view the superelevation graphically.

Alignment Editor

2.

Create the corridor to which you want to apply the superelevation as described in Workflow: Create a corridor.

Create Corridor

3.

Use the Edit Corridor Template pane to add superelevation instructions to the appropriate template(s) in the corridor.

Edit Corridor Template

4.

If necessary, use the Edit Corridor Template pane to define rollover parameters that specify the maximum and minimum allowable slope differences for the various lanes and shoulders in the road. Rollover parameters can be applied to Offset/Slope and Offset/Elevation instruction types.

5.

Use the slide control located beneath the Instructions list in the Edit Corridor Template pane to view the template along the length of the alignment.

6.

Verify the superelevation in Plan View or 3D View. Or, view a simulation of a drive along the corridor in 3D Drive View.

Plan View

3D View

3D Drive View

7.

Optionally, export the corridor using one of the supported file formats.

Export