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Comprehensive Transportation Projects

Advanced Technology Urban Area Transit Strategy (ATUATS) Update

In 2011, SANDAG published the Urban Area Transit Strategy (UATS) to support the 2011 Regional Plan. The goals of the transit strategy were twofold: first, maximize transit ridership in the greater urbanized area of the region; and second, test the role of the transit network to reduce vehicle miles traveled (VMT) and greenhouse gas emissions (GHG). The second goal supported SANDAG’s ability to comply with Senate Bill 375, which mandates that Metropolitan Planning Organizations develop a Sustainable Communities Strategy to align their transportation, housing, and regional land-use plans with the goal of reducing greenhouse gas emissions.

The emergence of new technologies that influence travel behavior and agency goals since 2011 prompted SANDAG to undertake a renewed approach to envisioning the future of public transit in the region. The 2019 Advanced Technology Urban Area Transit Strategy (ATUATS) update considers how transit could adapt to incorporating advanced technologies to enhance transit service in the urban core and how emerging technologies influence the interconnectivity of modes to maximize transit system use. Reducing VMT and GHG emissions in the region were retained as underlying principles of the study.

Examples of emerging technologies considered are transportation network companies (TNCs) such as Uber and Lyft, microtransit, dockless bike and scootershare mobility services (Lime bike, Bird scooter etc.), and connected vehicle (CV) technology and autonomous vehicle (AV) technology.

2011 UATS Study

2019 ATUATS Study (Full Report)

2019 Technical Appendix A - Traditional Transit Definitions
2019 Technical Appendix B - Key Points from Brainstorming Sessions on the Urban Area Transit Strategy
2019 Technical Appendix C - Lessons Learned from Peer Regions – Public  Private Partnership
2019 Technical Appendix D - Travel Market Research Analysis Memorandum
2019 Technical Appendix E - Mobility Hubs Memorandum
2019 Technical Appendix F - Draft Transit Evaluation Ranking
2019 Technical Appendix G - Planning Level Capital Cost Estimating Methodology
2019 Technical Appendix H - Peer Review Research
2019 Technical Appendix I - Modeling Scenarios and Results

Project Manager

Jennifer Williamson, Senior Transportation Planner
Phone: (619) 699-1959, Email:

For media inquiries, please contact the SANDAG Public Information Office at (619) 699-1950 or