Geographic Information System (GIS) Analysis
A GIS is really nothing more than a spreadsheet or database, with which we are all familiar, combined with an electronic map, where each record in the database is electronically linked with a geographical feature on the map, such as a land parcel, a street, or a voting precinct. The map and the concepts of location can be used to aid in the selection and calculation of data.
Most of our work in GIS analysis entails gathering, examining and reporting on the relationships between various types of data. The kinds of data that we are asked to examine include election results, school enrollments, socio-economic characteristics and marketing data, all of which have a strong location component. The practical applications of GIS analysis are limited only by the analyst’s imagination.
Some of our recent GIS projects have included: collecting and analyzing poverty data to calibrate a funding allocation model, examining the statistical relationship between neighborhood wealth and student achievement, redistricting of city council and county supervisor election districts and developing a business site-selection model using regression analysis of retail market area demographics.
Arizona Center for Law in the Public Interest – Statewide statistical analysis of the relationship between a measure of neighborhood wealth and a measure of student achievement, 2003.
Clearly Water, Ltd., Phoenix AZ – development of a statistical-multiple-regression-based business site location model using market area socio-economic data in a computer geographic information system (in association with Landis Info Freeway, Inc.), 1996.
Arizona Department of Education – Creation and operation of a geographic information system (GIS) application to provide speedy determination of the eligibility of Day Care Homes for Tier I funding under the USDA Child and Adult Care Food Program, 1997.