Use this dialog box to view and edit the parameters of the curb returns included in the intersection object.
Click the expand 
and collapse 
buttons at the top right to expand and collapse the information displayed in this dialog box.
When you select an item on this dialog box, the affected object is highlighted in the drawing, and the conceptual graphic on the dialog box updates to indicate the location affected by the edit.
Intersection Quadrant
This drop-down list lets you specify each quadrant in the intersection. You can also click Next and Previous to advance through the quadrants.
Incoming\Outoging Lane Details
Specifies curb return profile details for the incoming and outgoing lanes.
- Incoming or Outgoing Road Centerline Name
-
Displays the name of the centerline alignment for the incoming and outgoing road.
- Side
-
Displays which side of the road this profile reflects.
Curb Return Profile Parameters
Use these settings to view or change the parameters of the curb return profiles included in the intersection creation.
- Define Curb Return Profile By
-
Displays the method that was used to define the curb return profile. For Civil 3D version 2010, the only supported method for defining curb return profiles is by joining tangents.
- Extend Profile Along Incoming Lane
-
Specifies whether to extend the curb return profile along the incoming lane of the intersection.
- Length To Extend Along Incoming Lane
-
When Extend Profile Along Incoming Lane is set to Yes, this option lets you specify the length to extend the curb return profile along the incoming lane of the intersection.
- Extend Profile Along Outgoing Lane
-
Specifies whether to extend the curb return profile along the outgoing lane of the intersection.
- Length To Extend Along Outgoing Lane
-
When Extend Profile Along Incoming Lane is set to Yes, this option lets you specify the length to extend the curb return profile along the outgoing lane of the intersection.