To use the GTire, the user should create the GRoad before creating the GTire. The user cannot use the GTire if the GRoad does not exist.

Figure 1 GRoad Property page
•Using a new entity for the tire modeling
•Using the Ground body to the moving body
•Using the road file format(.rdf) by the standard tire interface of the parametric road model
•Importing the GRoad file and creating the GRoad file from the geometry (UA, MF)
•Using the Geometry to GRoad function (UA)