The Chattanooga Area Regional Transportation Authority (CARTA) is the public transit system in Chattanooga, Tennessee. The CARTA has provided safe, dependable and efficient transportation service to our community for over 40 years! Unlike many other public transit systems, the CARTA is more than just bus service. In addition to providing traditional fixed-route public transportation, the CARTA Care-a-van provides specialized transportation for the disabled. The CARTA initiated the Downtown Electric Shuttle system that has one of the largest fleets of electric buses in the United States, and recently took over the city of Chattanooga's parking operations. Electric buses run daily from the Chattanooga Choo Choo to the Tennessee Aquarium.