How do civil cells differ from templates?
A template is comprised of a series of points and components that represent breakline features that are later processed using the Corridor Modeling tools. Templates are stored in a template library (*.itl). Common uses for template are roadways, ditches, sidewalks, etc.
A civil cell is a collection of civil elements - geometry, templates, and terrain models - which can be placed repeatedly in a design. Common uses for templates are roundabouts, intersections, driveways, traffic islands, building pads, etc.