Make the Superelevation Shapes (Manual Mode)
For shaping approach roads and parking lots, use the manual method of shaping:
APPLICATIONS > GEOPAK ROAD > CROSS SECTIONS > SUPERELEVATION SHAPE MANAGER TOOLS
...and select SHAPE MAKER from the Superelevation Shape Manager Tools tool box.
This is relatively easy, and actually does many other things.
The recommended method for using this tool is "Automatic".