Default Alignment Layout
When you create an alignment with the Create Alignment - Layout or Create Alignment - From Polyline dialog boxes, the default is to create the alignment with no specified site <None> as shown in figure 2.
Figure 2: Place alignment on <None> site
This setting is recommended so that your alignments do not interact with parcels when they are created. If at a later time you would like them to interact with parcels, feature lines, or other alignments, you can move or copy the alignment to a site.