Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 253

3 Click Offset Alignment tab
4 Follow the command line prompts to specify the following parameters:
Create Widening Portion As A New Alignment?: No
Start Station: 150
End Station: 1000
Widening Offset: 24
The widening region is created, and the parameters you entered are
displayed in the Offset Alignment Parameters dialog box. You will learn
how to use this dialog box and the grips to modify the offset alignment
in Exercise 4: Editing an Offset Widening
Add a widening region to a widening region
1 Select the offset alignment that is on the right-hand side of the centerline
alignment. Right-click. Click Edit Offset Parameters.
NOTE You can also use the
Exercise 3: Adding a Widening to an Offset Alignment | 241
Modify panel Add Widening
(page 243).
grip to add a widening region.
.