High Quality Transit Areas (HQTAs) are defined as being within 1/2-mile of fixed guideway transit and/ or bus rapid transit stations with service every 15 minutes or less during peak commute times. SCAG published two shapefiles of (HQTAs): one for actual HQTAs in 2012, and one for planned HQTAs in 2040.
Population living in high quality transit areas was calculated by race and ethnicity of all people living within HQTAs using ArcGIS in both 2012 and 2040 based on 2017 population figures.