Click on the Draw Intersection icon to create an intersection.
After invoking the command, the following dialog box appears:
First, enter the name of a new intersection.
Select the major and minor alignment and the existing ground.
Define the intersection surface name.
By clicking the buttons 
and 
the user can switch between the fillets in the intersection and define the parameters. The active fillet is shown in the drawing in bold.
If you tick the Draw fillet checkbox, the individual fillets in the intersection will be drawn. Then select an entry and exit lane of the intersection fillet and chose the fillet type. You can choose between three types of transition curves;
- arc,
- two arcs,
- compound curve.
Define the size of the radius. Then enter the fillet name and define the settings with the click on the button Settings.
Select the button 
to define new grading criteria. In the following dialog box define setting name, target surface, and grading name. In the right upper corner is possible to change the slope unit.
You can choose from different criteria:
- Offset/Slope
- Offset/Relative elevation
- Slope/Relative elevation
- Slope/Surface
- Drape
- Offset/Drape/Elevation
Which criteria you select depend on what parameters will you have to define. After selecting the criteria, define offset length, relative elevation, and slope. You can also define the element name and define his layer. With the button 
you can add new sections.
Press OK to confirm all defined intersection parameters and enter in the drawing the input point of the profiles of fillets.
This command significantly accelerates the intersection planning process with automatic adjustment of the slope and superelevations of the minor alignment according to the major alignment. The program automatically draws the alignment and the profile in the intersection. Slopes of the fillets are tangentially fitted to the lanes of the major and minor alignment. Then 3D road lanes and fillets are drawn.
In addition, according to the defined criteria, the 3D gradients from intersection lanes to the selected ground are also drawn.
In the last step, the program assembles a 3D intersection model or a DTM on the basis of all 3D elements of the intersection.
