Project Type: Independent GIS Portfolio Project
Tools Used: ArcGIS Pro, ArcGIS Online, Excel, Census TIGER/Line Data
Data Sources: FEMA Flood Map Service Center, US Census Bureau, Harris County Open Data Portal
Date: 2025

Project Overview

Access to reliable public transportation plays a critical role in employment access, healthcare availability, and overall quality of life. This project evaluates public transit accessibility and walkability across Houston, Texas, using geospatial analysis to identify areas that may be underserved.

The objective was to apply GIS methods commonly used in transportation planning and equity analysis, while strengthening skills in network analysis, spatial joins, and cartographic communication.

Key Maps & Visualizations

Map 1: FEMA Flood Zones & Population Density

Choropleth map showing population density by census tract overlaid with FEMA Special Flood Hazard Areas.

Insight:
Highly populated tracts along bayous and low-lying regions show a strong overlap with high-risk flood zones, highlighting potential evacuation and emergency response challenges.

Map 2: Critical Infrastructure in Flood-Prone Areas

Point map of hospitals and fire stations intersecting FEMA flood zones.

Insight:
Several emergency facilities are located within or adjacent to flood-prone areas, which could impact response times during major storm events.

Map 3: Composite Flood Vulnerability Index

Weighted overlay combining flood risk, population density, and infrastructure proximity.

Insight:
This composite visualization helps prioritize areas that may benefit from targeted mitigation planning or infrastructure investment.