The presented report focuses on longterm scenarios for passenger travel in the U.S., which includes travel by car, transit, domestic air, and intercity rail. Long-term scenarios in this area are multilayered and complex, being influenced by demographics, economics, energy, transportation funding and supply, and technology. How these forces play out over the next 20 years will depend on whether and how policymakers and other decisionmakers sort out and address current and upcoming challenges. Although we cannot know these outcomes in advance, we can apply scenario planning to develop plausible mobility futures that can be used to anticipate and prepare for change.