If you have ARCADY then you can benefit from the automatic 2-way transfer of data between it and Roundabouts. If not, then this page displays the essential values necessary to perform the flow/capacity calculations, either by hand or using an alternative program. The values are calculated and updated continuously.
Click Analysis in the left hand pane. The Capacity Analysis Input Values page is displayed.
The values are either self-explanatory or defined in the glossary.
By default the Entry Angle is automatically calculated in one of two ways depending upon the geometry of the roundabout. The method used is displayed in the Entry Angle Measurement Method drop-down list box. This also allows you to force the method in the event that you disagree with the method used.