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Creating an Alignment with the Alignment Layout Tools

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Intermediate
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Create an alignment with the Alignment Layout Tools.

Use the layout command to create an alignment. Specify a unique name, site (if desired), style and label set, and criteria-based design options. Then, use the Alignment Layout Tools to draw the alignment.

This toolbar provides two types of alignment creation tools:

  • Freehand drawing tools for lines, curves, and spirals.
  • Constraint-based tools that define individual entities by parameters such as length and radius.

For more information, see Create Alignment - Layout Dialog Box.

Tutorial Exercise: Creating an Alignment with Spirals and Curves

To create an alignment using the alignment layout tools

  1. Click Home tabCreate Design panelAlignment drop-downAlignment Creation Tools.At the Command prompt, enter CreateAlignmentLayout.
  2. In the Create Alignment - Layout Dialog Box, enter a unique name for the alignment.
  3. Specify the alignment Type.
  4. Enter an optional description.
  5. Enter a starting station value.
  6. On the General tab, specify the following settings:
    • Site

      Specify a site with which to associate the alignment or accept the default <None>. For more information, see Understanding Sites.

    • Alignment Style
    • Alignment Layer
    • Alignment Label Set
  7. On the Design Criteria tab, specify a Starting Design Speed to apply to the alignment starting station.

    This design speed is applied to the entire alignment. Additional design speeds can be applied at other stations after the alignment has been created. For more information, see Alignment Properties.

    Note

    If you do not want to apply design criteria to the alignment, proceed to Step 8.

  8. To associate design standards with the alignment, select the Use Criteria-Based Design check box.

    For more information, see Criteria-Based Alignment Design.

    On the Design Criteria tab, specify the following settings:

    • Use Design Criteria File

      Select this check box to associate a design criteria file with the alignment. The default design criteria file location and the Default Criteria properties becomes available when you select the check box.

      Note Depending on the specified alignment type, the first design criteria file found in the following directory is used by default when the criteria-based design feature is used.
      • Centerline, Offset, or Curb Return alignments: C:\Documents and Settings\All Users|Application Data\Autodesk\AutoCAD Civil 3D2013\enu\Data\Corridor Design Standards\<units>
      • Rail alignments: C:\Documents and Settings\All Users|Application Data\Autodesk\AutoCAD Civil 3D2013\enu\Data\Railway Design Standards\<units>
    • Use Design Check Set

      Select this check box to associate a design check set with the alignment. The design check set list becomes available when you select the check box. Select a design check set from the list.

  9. Click OK to display the Alignment Layout Tools toolbar.
  10. Use the commands on the Alignment Layout Tools toolbar to draw the alignment. For more information, see Alignment Layout Tools and Adding Constraint-Based Alignment Entities.

Ribbon

Home tab Create Design panel Alignment drop-down Alignment Creation Tools

Menu

Alignments menuCreate Alignment By LayoutAt the Command prompt, enter CreateAlignmentLayout

Command Line

CreateAlignmentLayout

Dialog Box

Create Alignment - Layout Dialog Box


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