Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 510

Specify the corridor grade parameters
1 In the Create Intersection wizard, on the General page, under Intersection
Corridor Type, select All Crowns Maintained.
2 Click Next.
Specify the geometry of the offsets and curb returns
1 On the Geometry Details page, click Offset Parameters.
Default parameters are stored in the drawing settings. You can modify
the default parameters during the intersection creation process.
2 In the Offset Parameters dialog box, specify the following parameters:
Secondary Road
3.5000
Secondary Road
3.5000
Create New Offsets From Start To End Of Centerlines: Cleared
When this option is selected, offset alignments are created along the
entire length of the centerline alignment. This option is useful when
you need to use offset alignments and profiles as targets for other
objects, including other intersections along the same road.
3 Click OK.
4 On the Geometry Details page, click Curb Return Parameters.
5 In the Intersection Curb Return dialog box, under Curb Return Parameters,
specify the following parameters:
Curb Return Type: Circular Fillet
Radius: 7.5
NOTE In the drawing, temporary graphics highlight the currently selected
curb return.
6 Right-click Curb Return Parameters. Click Copy These To All Quadrants.
This command copies the curb return parameters to all intersection curb
return regions. The number of curb return regions is automatically
generated based on the existing horizontal geometry. For example, if this
was a four-way intersection, four curb return regions would be available.
498 | Chapter 14 Intersection and Roundabout Tutorials
Left Offset Alignment Definition
Right Offset Alignment Definition
Offset Value:
Offset Value: