Autodesk CIVIL3D Tutorial - Page 550
Tutorial: Working with Roundabouts, Exercise 1: Creating a Roundabout
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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 Working with Roundabouts (page 538). 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 tutorial drawings folder (page 819). 538 | Chapter 14 Intersection and Roundabout Tutorials