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Mastering AutoCAD® Civil 3D® 2012 by Louisa Holland, Richard Graham

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Creating an Alignment

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Alignments in Civil 3D can be created from AutoCAD objects (lines, arcs, or polylines) or by layout. This section looks at both ways to create an alignment and discusses the advantages and disadvantages of each. The exercise will use the street layout shown in Figure 6-4 as well as the different methods to achieve your designs.

Figure 6-4: Proposed street layout

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Creating from a Line, Arc, or Polyline

Most designers have used either polylines or lines and arcs to generate the horizontal control of their projects. It’s common ...

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