{ "snippet": "", "summary": "", "accessInformation": "SANDAG Technical Services - GIS", "thumbnail": "", "maxScale": "NaN", "typeKeywords": [], "description": "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 Centerlines, and street centerline data from the County of Imperial. Regional aerial imagery (1'/pixel resolution or better) is generally used as a guide for delineating roadway alignments, primarily using heads up digitizing methods, using ArcGIS desktop software.", "licenseInfo": "", "catalogPath": "", "title": "RD_MAJOR_SG NOT STATE HWY", "type": "", "url": "", "tags": [], "culture": "en-US", "portalUrl": "", "name": "", "guid": "", "minScale": "NaN", "spatialReference": "" }