You can create presets to save time when creating or editing roundabouts.
On roundabout dialog boxes, you can save the geometry parameter settings as a preset. To do this, use the Predefined Parameters To Import choice on the dialog box.
When you use this feature, you can specify and save certain roundabout parameter values on the dialog boxes and store in the currently selected roundabout drawing standards .xml file as a preset.
You can give these presets a unique name to suit the needs of your project.
Only certain parameters are saved in the preset .xml file (primarily the geometry defining parameters). The following table lists the parameters that can be saved as a preset using the Predefined Parameters To Import choice on the dialog box.
| Dialog Box | Parameters |
|---|---|
| Create Roundabout - Circulatory Road | |
| Roundabout Parameters: | Outer Radius |
| Inner Radius (French standard only) | |
| Circulatory Road Width (EN-US standard only) | |
| Apron Width (EN-US standard only) | |
| Traversable Extra Width (French standard only) | |
| Markings Parameters: | Outer Offset |
| Number of Lanes to Mark | |
| Inner Offset | |
| Number of Lanes to Mark | |
| Marker Line Width ,Lane Marker Linetype | |
| Create Roundabout - Approach Road | |
| Approach Road Parameters: | Exit Road Width |
| Exit Radius | |
| Exit Flare Length | |
| Exit Flare Type | |
| Width At Departure | |
| Entry Road Width | |
| Entry Radius | |
| Entry Flare Length | |
| Entry Flare Type | |
| Width At Approach | |
| Create Roundabout - Islands | |
| Construction Traiangle Parameters: | Length |
| Base | |
| Splitter Island Parameters: | Provide Crosswalk (Length) |
| Rounding At Exit | |
| Offset From Circle At Exit | |
| Offset At Exit | |
| Offset At Departure | |
| Rounding At Tip | |
| Island Total Length | |
| Island Base Length | |
| Rounding At Entry | |
| Offset From Circle At Entry | |
| Offset At Entry | |
| Offset At Approach | |
| Rounding At Crosswalk | |
Exercise 5: Working with Roundabout Design Standards and Presets