Rail systems in the US include freight, passenger, commuter, and high-speed rail. Rail provides energy and transportation benefits compared to other modes. Passenger and freight rail ridership and usage have grown in recent decades but still represent a small portion of overall transportation. Expanding passenger and freight rail would support a smart energy strategy by providing more transportation choices, protecting against volatile energy prices, and keeping the economy competitive through greater efficiency compared to other modes like air and truck travel. Federal investment in transportation has prioritized highways over rail, and greater emphasis on rail in transportation plans and more stable funding is needed to expand passenger and freight rail further.