Expand Arm Geometry and click on the Rumble Strips tab.
Rumble strips start at the Outer Offset from Entry Intersect (furthest from the roundabout) and end closer to the roundabout at the Inner Offset from Entry Intersect. Both are measured along the offside (or splitter) definition line from the intersection of that line and the inscribed circle .
The Outer Strip Spacing is often wider than the Inner Strip Spacing.
The Strip Width is measured perpendicular to the strip and does not vary.
The Angular Displacement is measured relative to the normal to the offside definition line. Rotation is positive when the strips are turned away from the roundabout.
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.