Measures walkability on a scale from 0 - 100 based on walking routes to destinations such as grocery stores, schools, parks, restaurants, and retail.
Measures transit accessibility on a scale from 0 - 100. Calculates distance to closest stop on each route, analyzes route frequency and type.
Measures bike accessibility on a scale from 0 - 100 based on bike infrastructure, topography, destinations and road connectivity.
A lightweight data-interchange format that has become the de facto standard for communication across internet-enabled APIs.
For a formal definition, please see the ECMA-404 Standard: JSON Data Interchange Syntax