Tutorial: Working With Roundabouts; Exercise 1: Creating A Roundabout - Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual

This is the assembly set that you used to create the corridor. However,
Intersection Corridor Regions dialog box enables you to specify another
assembly set, or individual assemblies, with which to create the corridor.
6 Click Recreate.
The corridor is recreated. Notice that the modifications that you made
to the Road A baseline, including the assembly frequencies and region
start station, returned to their original settings. This happened because
the corridor was recreated using the parameters that were originally
specified during the intersection creation process. Modifications that are
made to the corridor in the intersection area are not retained when you
recreate the corridor from the intersection object.
NOTE Corridor regions that are outside the intersection extents are not
affected by the Recreate Corridor Regions command.
To continue to the next tutorial, go to

Tutorial: Working with Roundabouts

This tutorial demonstrates how to create and edit 2D roundabouts.
The roundabout approach roads, circulatory road, and turn slip lanes are
defined by horizontal alignments, which are dynamic to the centerline
alignments that you specify. You may create pavement markings, signs, and
splitter islands as AutoCAD objects, which remain dynamic to the roundabout
alignments.
For more information, see the AutoCAD Civil 3D Help topic Understanding
Roundabouts.

Exercise 1: Creating a Roundabout

In this exercise, you specify a center point, the centerlines of the approach
roads, and the geometric parameters from which to create a roundabout.
For more information, see the AutoCAD Civil 3D Help topic Creating
Roundabouts.
Specify the roundabout center point and approach roads
1 Open Roundabout-Create.dwg, which is located in the
folder
538 | Chapter 14 Intersection and Roundabout Tutorials
(page 819).
Working with Roundabouts
tutorial drawings
(page 538).