San Francisco Bay Region High Quality Transit Areas

These features represent the August 20, 2026 High Quality Transit Areas (HQTA), developed by the California Department of Transportation (Caltrans). The features in this data set, representing the San Francisco Bay Region, were on extracted by Metropolitan Transportation Commission staff from the statewide, source data produced by Caltrans. Per statute, HQTA are defined as the half-mile surrounding high quality transit corridors and major transit stops. The Caltrans HQTA (polygon) dataset already incorporates this half-mile buffer. Using the HQTA dataset, it is possible to determine if an area qualifies because it is a high quality transit corridor, major transit stop, or both. This is useful for certain kinds of analyses, since some statutes and programs only reference major transit stops and don’t include high quality transit corridors. For information on how Caltrans developed the source data, and to access the complete data set, please visit the High Quality Transit Areas Analysis Open Data Portal.