Occasionally, you may need to model a corridor that requires “skewed” ends. For example, this might occur when a corridor meets a bridge where the abutments are not perpendicular to the roadway. Historically, Civil 3D does a great job leveraging targets adjacent to a linear design, but it isn’t always obvious how to apply targets to the corridor ends. In today’s post, we’ll explore a technique to model this skewed geometry.
The technique involves creating a corridor twin in the area of the skew. This corridor remains dynamic to the primary corridor design and defines the surface and linear targets necessary to “trim” the ends. The secondary corridor also ensures future design changes are as maintenance-free as possible.
If interested, I’ve created a video below that walks through the workflow.
-Jeff