Creating and Managing Sites
In Civil 3D, a site is a collection of parcels, alignments, grading objects, and feature lines that share a common topology. In other words, Civil 3D objects that are in the same site are related to, as well as interact with, one another. The objects that react to one another are called site geometry objects.
Best Practices for Site Topology Interaction
At first glance, it may seem the only uses for parcels are subdivision lots, and therefore you may think you need only one site for your drawing.
However, once you begin working with parcels, you’ll find features like dynamic area labels to be useful for delineating and analyzing soil boundaries; paving, open space, and wetlands areas; and any other region enclosed ...