The U.S. DOT Volpe Center’s 2021 thought leadership speaker series “Innovation for a Sustainable, Equitable Transportation System” brought together thousands of people from around the world to hear insights and perspectives from eight prominent public, private, and academic transportation professionals. Expert guests brought their bold visions for topics like energy sector transformation to achieve net-zero emissions, urban electrification and impacts on the national grid, and techno-economic pathways from the microeconomic, such as individual subsidies to incentivize travel behavior—to the macroeconomic, such as creation of regional cap-and-invest carbon markets.