The Department of Transportation provides citizens of Tennessee and travelers with one of the best transportation systems in the country. TDOT consistently wins awards for its projects, highway design and for its innovative approach to transportation. Since 1998, Tennessee was voted as having one of the top five highway systems in the country by a national trade magazine.TDOT is a multimodal agency with responsibilities in aviation, public transit, waterways and railroads. Our involvement ranges from airport improvements to funding transit buses to planning for river ports.The Department of Transportation has approximately 3,900 employees with four statewide region facilities in Jackson, Nashville, Chattanooga and Knoxville. TDOT headquarters is located in downtown Nashville.