Centroid checking

Validation of centroids when you choose to preserve user-provided geocodes upon import.

Verisk Synergy Studio checks whether each provided geocode is a known centroid for the highest-resolution provided area or the city. This check avoids reverse geocoding previously-geocoded centroids and has the following three important effects:

• Prevents centroids that lie outside the boundary from moving to the containing boundary. This scenario is easiest to envision with a crescent-shaped area; however, exposure-weighted centroids can also be outside of the associated boundary. Without this centroid check, the import-export-import process does not yield stable results.
• Prevents Verisk Synergy Studio from reverse geocoding lower-resolution centroids as higher-resolution user points.
• Enables Verisk Synergy Studio to detect older centroids and follow the mapping to the corresponding new records. For remodeled geographies, Verisk Synergy Studio moves the geocode along with the data. This effect is significant when Verisk Synergy Studio performs a large amount of remapping. Without this check, all old area centroids would reverse geocode to the highest available resolution.