Designing in 3D Using Corridors

Now that you have captured the nature of the existing ground along the road centerlines using surface profiles, and you have reshaped it using layout profiles, it’s time to specify how you intend your design to be built. A wavy line in the drawing simply isn’t enough information for a contractor to start building your design. You need to provide specific geometric information about the profile so that it can be re-created in the field. This is done with various types of annotations available in the AutoCAD® Civil 3D® software. It is also important that the framework within which the profiles are displayed is properly configured.

As you learned in the previous section ( Designing Vertically Using Profiles ), the grid lines and grid annotations behind your profiles is a profile view. In this section, you’ll look at applying different profile view styles to control what information about your profiles is displayed and in what manner.

Finally, it is often necessary to show other things in a profile view that might impact the construction of whatever the profile represents. Pipe crossings, underground structures, rock layers, and many other features may need to be displayed so that you can avoid them or integrate your design with them. One way of showing these items in your profile view is through a Civil 3D® function called object projection.

• Understanding Corridors
• Creating an Assembly
• Creating a Corridor
• Applying Corridor Targets
• Creating Corridor Surfaces
• How to Provide the Third Stage of A Road Design: The Cross Section (Additional Exercise)

Download Exercise File :

• Civil 3D All Exercise Files - Chapter 9 - Metric     --- ( 8.02 MB )
• Civil 3D All Exercise Files - Chapter 9 - Imperial  --- ( 7.45 MB )

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How to Provide the Third Stage of A Road Design: The Cross Section