Description: The Statewide Transportation Projects Inventory (STPI)is a GIS repository of both planned and programmed project data obtained from all of California's 44 Metropolitan Planning Organizations (MPO) and Regional Transportation Planning Agencies (RTPA) most recently updated Regional Transportation Plan (RTP) project lists. The purpose of the repository is to provide mapping and spatial analysis of current constrained projects in GIS, support improved coordination and timing of transportation projects among California stakeholders, facilitate early planning for a variety of programs, improve available transportation project data for system and corridor planning, and various other uses.