Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 575

6 At the bottom of the dialog box, click Next.
Specify island presets
1 In the Create Roundabout - Islands dialog box, under Predefined
Parameters to Import, click
2 In the Preset - Add dialog box, under Preset Name, enter R = 40.
3 Under Construction Triangle Parameters, enter the following parameters:
Length: 60
Base: 4.5
4 Under Splitter Island Parameters, enter the following parameters:
Provide Crosswalk (Length): 3
Rounding at Exit: 1
Offset from Circle at Exit: 1
Offset at Exit: 0.5
Offset at Departure: 0.3
Rounding at Tip: 0.25
Island Total Length: 15
Island Base Length: 8
Rounding at Entry: 1
Offset from Circle at Entry: 0.5
Offset at Entry: 0.5
Offset at Approach: 1
Rounding at Crosswalk: 0.5
5 Click OK.
6 In the Create Roundabout - Islands dialog box, click Apply to All.
7 At the bottom of the dialog box, click Next. Click Finish.
Exercise 5: Working with Roundabout Design Standards and Presets | 563
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