When creating an alignment, assign it a type of centerline, offset, curb return, rail, or miscellaneous.
You can use these alignment types to categorize your data based on alignment function. Select the centerline type for a road centerline, the rail type for a railway, or the miscellaneous type for other uses, such as a utility conduit. These types are independent objects.
Offset alignments and curb return alignments can also be independent, but are often dynamically linked to other alignments. Both offset alignments and curb returns can be created automatically as components of an intersection. Offsets can also be used in widenings.
After an alignment has been created, you can calculate how the corridor behaves around curves. You can calculate superelevation along centerline, offset, and curb return alignments, or you can calculate cant along rail alignments. For more information, see Superelevation or Cant.