Garrett manages and produces GIS data for visualization, analysis,
underwriting, and rating.
His expertise includes:
- Spatial analysis for catastrophe modeling
- Construction of custom territories and other GIS datasets for rating and underwriting
- Development and implementation of geospatial capabilities
- Use of third-party GIS data
- Cartographic production and graphic design
Garrett is an expert in data visualization and produces maps and
charts that enable insurers to understand their data across a range
of geographic scales so they can make sound business decisions.
Through the use of GIS and mapping at every step of an analysis,
Garrett helps clients identify unique spatial patterns that can drive
pricing and underwriting strategies.
Garrett has many years of experience with third-party
GIS data from
a variety of sources such as the United States Geological Survey, the
National Oceanic and Atmospheric Administration, the Florida
Geological Survey, and the United States Census. When combined
with insurance data, these GIS resources enhance Milliman’s
predictive modeling capabilities. With GIS datasets that describe the
physical drivers of catastrophe risk, our clients are able to
incorporate granular rating and underwriting rules. Third-party
demographic and exposure data allow insurers to drill down on
target marketing areas and identify drivers of non-catastrophe
losses.
Garrett helps our clients adopt new geospatial capabilities by both
providing access to custom location-based
services and training
them to develop and manage their own geospatial services. Garrett
develops and manages Milliman PinPoint, a cloud-based
service
where a single property location returns any number of custom
geographic attributes. Example outputs from PinPoint include rating
territory, census geographies, distance-to-coast,
distance-to-river,
elevation, and relative elevation. Whether using PinPoint or inhouse
systems, Garrett’s expertise allows our clients the flexibility to
use their own, custom GIS datasets in pricing and underwriting.
Garrett has frequently prepared the data visualization components of
actuarial presentations and articles. He has given presentations on
the use of GIS, third-party
data, and data visualization in addition to
developing hands-on
GIS training workshops. Garrett has also
published articles and given presentations on the use of GIS in
studies of surface roughness length and the influence of the built
environment on ground-level
wind speeds.
