Abstract:This paper describes the purpose, methodology, instruments, organization and participant discussion results at the Friday Ancillary workshop: “Envisioning Automated Vehicles within the Built Environment: 2020, 2035, 2050” during the TRB/AUVSI Automated Vehicles Symposium 2014. This hands-on interactive workshop included 110 participants working as small teams of experts from a wide range of fields—city planning, infrastructure, architecture, car design, engineering, software, and systems—who collaborated on specific built world scenarios focused on the challenges and opportunities for AV/ATN implementation in the United States by regional transportation planning organizations.