Figure 9.2 A Civil 3D assembly that establishes lanes, curbs, sidewalks, and grading |
Understanding the Assembly
on June 27, 2018
An assembly is a representation of the cross-sectional geometry of the feature you are designing. It establishes the overall shape of the cross section and distinguishes the areas within it. For example, a typical road cross section can have areas of asphalt pavement, base material, curbs, and sidewalks, as shown in Figure 9.2.
The parts of an assembly are called subassemblies. They are dynamically linked to one another and therefore have the potential to affect one another. For example, if a curb subassembly is located at the edge of a lane subassembly, the curb subassembly will automatically move outward if the lane width is increased.