Civil 3D – Issue:  Alignment Overlap

Kevin Breslin

Leo Lavayen | Applications Expert

THE ISSUE: 

In this blog post, we’re going to take a look at an odd Alignment length and stationing issue within Autodesk Civil 3D which is made obvious when viewed in profile view.  Below is a simple recreation of the issue.  

Notice the Alignment stops at the Road Centerline to the West, yet a crown is plotted. 

Algn-01

In this example, there is an overlap due to a duplication of linework for the initial ~50’ of a tangent section.  When geometry labels and extra grid lines are enabled, the issue starts revealing itself. 

THE FIX: 

The Alignment geometry must be edited and the duplicated segments needs to be removed.

Algn-02

Once that duplicate linework is removed the profile matches the design to centerline only showing half of the crown.

Algn_Overlap

 

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