Can a more comprehensive index be formed to identify areas of low access to food sources in Harris County?

The United States Department of Agriculture has four definitions for which census tracts in the United States can be flagged as “food deserts,” which can be found in the 2019 Food Access Research Atlas. Such methodology has several potentially detrimental limitations that can be addressed. By collecting adequate data, another index can be formed to gauge the level of access to healthy foods in each census tract.