3. Create Strip Surfaces
Once strip polylines have been attributed, offset and projected, the next step is to use the Create Triangulation tool to generate strip surfaces. The Strip attribute that was assigned to the strip lines is referenced in a Grouping Expression to create the surfaces.
Since the strip surfaces do not inherit the Strip attribute values from the input strip lines, the Set Attributes by Direction tool is used once again to increment a Strip attribute value, from West to East, for each strip surface.