Travelers rely on public transit to get to work, school, and essential services. Measuring equity in transit gives insight into the fairness of systems.

Areas with more trees, parks, and vegetation may provide access to recreation, improve mental health, and combat heat island effects.

Access to fresh produce and healthy foods is essential for health. From food deserts to food swamps, tracking food accessibility is crucial.

Integrating social, economic, and other environmental factors as an index can approximate neighborhood advantage and vulnerability.