Design Criteria Tab (Alignment Properties Dialog Box)

Design Speeds

Alignments can have an unlimited number of design speeds, but they can have only one design speed at any given location.

Add Design Speed

Specifies the location for a new design speed. Click the icon and pick a point on the alignment or enter a value at the command line to create a design speed.

Delete Design Speed

Deletes the selected design speed. Select the design speed row and click the button to delete the design speed.

Station

Displays the station location of the design speed.

Design Speed

Specifies the design speed for the location. Click in the cell to enter a new design speed or accept the default.

Comment

Specifies notes or instructions relevant to the design speeds. Enter optional comments. These comments can be used in labels.

Criteria-Based Design (Unlabeled)

Use the following controls to change the design criteria file, default criteria, or design check set.

Use Criteria-Based Design

Causes the Use Design Criteria File and Use Design Check Set check boxes to become available. If this check box is cleared, Design Speed is the only design criteria that will be applied to the alignment.

Use Design Criteria File

Applies the default design criteria file to the alignment and causes the Default Criteria property table to become available. The first design criteria file found in the C:\Documents and Settings\All Users|Application Data\Autodesk\AutoCAD Civil 3D2013\enu\Data\Corridor Design Standards\<units> directory is used by default. Click to select a different design criteria file.

The Default Criteria table displays the Properties, or table contents, that are defined in the selected design criteria file. Click the Value column to change a criteria table.

For more information, see Alignment Design Criteria Files.

Use Design Check Set

Applies the default design check set to the alignment. Use the list to select from the available design check sets. You can also use the selector to create a design check set, copy or edit the current design check set, or pick a design check set from another alignment in the drawing.

For more information, see Design Checks.

Check for Tangency Between Elements

Specifies whether to check if any line, curve, or spiral element is not tangent to its previous or next element. If an element is not tangent, then the Warning symbol is displayed in the drawing, in the Alignment Entities vista, and in the Alignment Layout Parameters window.