Quick Workflow (high-level)
Creates intelligent assemblies that react to target parameters (surface, alignment, profile).
Select your TargetSurface from the Surface Target drop-down menu.
High-quality guides typically come from official Autodesk University handouts or state Department of Transportation (DOT) documentation:
Civil 3D controls corridor visual styles, cross-section hatching, and surface rendering using string . Always wrap codes in quotation marks within Subassembly Composer (e.g., "Top" ). Component Type Common Industry Codes Point Codes "Crown" , "ETW" (Edge of Travel Way), "Curb" , "Hinge" Controls feature line generation along the corridor. Link Codes "Top" , "Pave" , "Subbase" , "Datum" civil design 3d subassembly composer tutorial pdf top
Watch your Preview window update to show a sloped line stretching from P1 to P2. Step 3: Attach the Curb Geometry
Prevents corridor rebuild crashes when target objects are missing or omitted.
Are slopes explicitly designated as Slope or Double types to avoid unit conversion bugs?
These documents typically follow a standard workflow to help you master custom corridor design: Always wrap codes in quotation marks within Subassembly
Add Parameters (numeric & boolean).
Assign a clear (e.g., LaneWidth ) and a Default Value (e.g., 3.6m ). Target Parameters
[Point 1] -------- (Link 1) --------> [Point 2] | | (Link 3) SHAPE (Link 2) | | v v [Point 4] -------- (Link 4) --------> [Point 3] Step 1: Establishing the Origin (P1)
: Allows your subassembly to change behavior based on its current stationing along the alignment. Step 3: Attach the Curb Geometry Prevents corridor
For more information on Civil Design 3D Subassembly Composer, check out the following resources:
Use clear naming conventions without spaces (e.g., LaneWidth , CurbHeight ). Type: Choose the correct data type: Double: For decimal numbers (widths, heights). Grade: For slopes and percentages. String: For text variables. Side: Left or Right orientation.
To download the Civil Design 3D Subassembly Composer tutorial PDF, simply click on the link below: