Datasets Activity Stream About Order by Relevance Name Ascending Name Descending Last Modified Popular Go 1 dataset found Formats: HTML Esri REST ZIP Tags: Transportation SANDAG Filter Results Major Roads Data from a number of sources is used for the development and ongoing maintenance of the MajorRoads feature class. Source data includes SanGIS Roads_All, Caltrans State Highway... HTML Esri REST GeoJSON CSV KML ZIP