Edits adaptive roundabouts that were created using the Roundabout Wizard tool.

Edit Roundabout - Adaptive Dialog Box

Central Island Section

Specify the location of the central island in the drawing. The Easting value determines the distance eastwards of the roundabout center from the origin. The Northing value determines the distance northwards of the roundabout center from the origin.

Button	Option	Click to...
	Move Central Island	Move the roundabout central island to a new location. After you click the button, click the roundabout, move it to the desired location, and then click to place the roundabout and return to the Generate Roundabout dialog box.

Inscribed Circle Diameter

Specify the inscribed circle diameter value.

Button	Option	Click to...
	Reset to Circle	Redraw the inscribed circle as a circle using the specified diameter value.

Central Island Diameter

Specify the central island diameter value.

Button	Option	Click to...
	Reset to Circle	Redraw the central island circle as a circle using the specified diameter value.

Truck Apron Width

Select this check box to draw the fixed width truck apron at the specified value. Clear the check box to turn off the truck apron.

Button	Option	Click to...
	Reset to Offset	Redraw the truck apron as a circle using the specified central island diameter minus the truck apron width.

Toolbox Section

Button	Option	Click to...
	Edit Legs	Edit approach legs' parameters.
	Rotate Leg	Rotate an approach leg around the center of the central island. After you click the button, click inside the leg that you want to rotate, rotate it to the desired position, click to place the leg, and then right-click to return to the Edit Roundabout dialog box.
	Redraw Edge	Select an edge in the adaptive roundabout to redraw. After you click the button, pick the edge that you want to redraw, click points in the drawing to define the shape of the new edge then right-click to stop drawing the shape, pick another edge to edit or right-click to return to the Edit Roundabout dialog box.
	Edit Edge	Select an edge in the adaptive roundabout to edit. After you click the button, pick the edge that you want to edit, click the desired node along the edge, for example, Move Point, move the point to the desired location then click to set the point, click another node or right-click to pick another edge to edit and then right-click again to return to the Edit Roundabout dialog box.

Note: Changes to the widths of lanes to accommodate more or less lanes are not reflected in the leg configuration. The adaptive roundabout needs to be editing using Edit Legs to adjust the number of circulating and leg lanes to correspond with what has been drawn.