Expand Arm Geometry and click on the Exit tab.
The Design Speed is the speed at the intersection of the exit splitter and the inscribed circle.
Exit Lanes refers to the number of designated lanes at the exit point.
The Exit Lane Width (Single) refers to the permitted lane width when there is only a single lane at the exit. This is measured between the nearside and offside definition lines.
The Exit Lane Width (Multiple) refers to the permitted lane width when there is more than one lane at the exit. This is measured between lane separator lines or between lane separator lines and definition lines in the case of the nearside and offside lanes.
The Exit Width (Overall) is the permitted overall width of the roadway at the exit point. It is measured perpendicular to the splitter definition line at the intersection of the splitter definition line and the inscribed circle and is the distance between the splitter definition line and the nearside definition line.
The Splitter Radius is the radius of the offside definition line at the splitter.
The Nearside Radius is the radius of the nearside definition line at the splitter.
In all cases the Max and Min values represent the limiting values from the adopted design standard and the Default value will be used when the roundabout is first placed. A default value MUST be provided but Max and Min may be blank if there is no limiting value.