Food Vulnerability AnalysisIdentified populations having limited access to nutritious foods
The goal of this project was to identify populations that have limited access to grocery stores and nutritious foods within Harris County, Texas. This analysis closely follows the methodology of many credible institutions, identifying low income and low access to grocery stores population at a census tract level for the whole United States. Our analytical approach would hone in on a specific county or region and provide these results at a much higher resolution, allowing us to really identify those populations for resource and budget allocations.
Background research identifying populations having less access to nutritious foods
Download and prepare census data at a block group level
Network Analyst to model accessibility to grocery stores
Analysis to identify potential block groups with limited access to grocery stores
- Researched literature to determine best method to model populations and food insecurities
- Obtained and evaluated locations of grocery stores to participate in the analysis, identifying stores that would more likely provide nutritious foods and removing those such as gas stations and other convenient stores
- Used ArcGIS Network Analyst to model walking accessibility to identify populations that are further than 1/2 mile walking distance from a grocery store.
- Based on the research parameters identifying vulnerable census block groups and the network analyst results, identified block groups that are considered to have food insecurities