Ring Accumulations in 5.1 and Later

Accumulating by rings is useful when you want to analyze your property exposure or workers' compensation data for terrorism risks. However, you can use this method of accumulation for any peril when you want to understand areas of high concentration of risk in a small geographical area.

You can configure four types of ring analyses:

•       Dynamic Ring: Generates ring locations based on exposure locations so that you can identify the highest concentrations.

•       Top <n> risks by total replacement value: Generates rings based on the specified number of high-value locations in your portfolio.

•       AIR Landmarks: Generates rings on high-trophy targets compiled by AIR and categorized into different types of landmarks, such as malls, airports, etc.

•       Address List: Enables you to use specific addresses around which to create rings.

You can create a single ring on each location or a set of concentric rings; you do this when you define the ring radius and damage ratio for each concentric ring. The option is not available for Dynamic Ring Analysis because this type of ring analysis generates rings after the analysis.

This is where you are in the workflow:

To accumulate values by rings:

1.     In the Step 2 - Configure pane, select the Accumulate tab.

2.     Specify the ring placement criteria based on selected location options.

3.     Filter the exposures (the content within the rings) by peril and geocode match levels.

4.     Define the ring radius and damage ratio for each concentric ring.

5.     Optionally, click Preview Ring Placement.

The selections in the Configure panel determine what appears in the preview of the ring placement. The color purple identifies the rings. Zoom in on the ring clusters.

The color orange identifies the unfiltered locations in the exposure view. The locations are filtered if you apply map filters and unfiltered if you do not apply map filters. If you want to understand which locations will be included in the ring analysis, use the Map Filters tool to filter the locations based on the same criteria. ExampleYou may want to filter the Ring Content by the Terrorism peril and the City Centroid geocode match level.

6.     Optionally, select the Intersect tab, and then, on the Hazard tab, select one or more hazard layers. Click to preview a hazard layer on your map. Click the ellipsis (...) to view information about a hazard layer.

You can preview one hazard layer at a time.

7.     Optionally, select the Detailed Loss tab and then select a single set of results from the Detailed Loss grid.