Ring Studies are carried out from a Summary Report after selecting the Study Totals option. The first choice is to Define Study Total.
Single Ring Studies are always available from this selection. A single ring study creates a Detailed Report in which either All Areas or the Selected Areas from the Summary Report are added together (and computed fields such as averages and medians are recomputed from the new totals).
Multiple Ring Studies are available when a Circle Filter from the Site Study Select/Remove Filter feature is included. Choose a standard 1, 3, 5 Mile Rings report, or select User Defined Rings and enter custom ring sizes. In a multiple ring study, a Ring Study Report will be created.