Tutorial: Creating a Basic Corridor Model

A corridor can be used to model a variety of features, such as highways, channels, and runways. In this tutorial, you will model a residential road.

A corridor model builds on and uses various AutoCAD Civil 3D objects and data, including subassemblies, assemblies, alignments, surfaces, and profiles.

Corridor objects are created along one or more baseline alignments by placing a 2D section (assembly) at incremental locations and creating matching slopes that reach a surface model at each incremental location.

For more information, see the AutoCAD Civil 3D Help topic Creating Corridors.

Watch video: Create a Basic Corridor

Specify the basic corridor information

1. Open Corridor-1a.dwg, which is located in the tutorials drawings folder .
2. Click Home tab Create Design panel Corridor.
3. In the Create Corridor dialog box, specify the following parameters. Alternatively, you can use the buttons to pick the objects from the drawing.
   • Name: First Street
   • Alignment: First Street
     
   • Profile: Finished Grade Centerline - First Street
     

     (Profile view grid lines removed for clarity)

   • Assembly: Primary Road Full Section
     
   • Target Surface: EG
     
   • Set Baseline and Region Parameters: Selected
4. Click OK.

Specify the baseline and region parameters

1. In the Baseline and Region Parameters dialog box, in the RG-Primary Road Full Section - (1) row, in the End Station cell, enter 0+440.00.
2. In the Frequency cell, click .
3. In the Frequency To Apply Assemblies dialog box, under Apply Assembly, for Along Curves, enter 3.000. Click OK.
4. Click OK.
5. In the Corridor Properties - Rebuild task dialog box, click Rebuild the Corridor.
   NoteIf the task dialog box is not displayed, the corridor is still built.

   The corridor model is built and looks like this:

   

To continue to the next tutorial, go to Creating a Corridor with a Transition Lane.