Expand Arm Geometry and click on the Crossing tab.
The Crossing frame controls the appearance of the crossing over the road.
The Offset from Intersection is measured along the splitter definition line from the intersection of that line and the inscribed circle.
The Crossing Width is measured perpendicular to the angle of the crossing.
The Angular Displacement is measured relative to a line perpendicular to the splitter definition line. Rotation is positive when the crossing is turned away from the roundabout. In most cases, the angle will be zero since this represents the shortest crossing distance.
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.