The Tennessee Department of Transportation provides citizens of Tennessee and travelers with one of the best transportation systems in the country. TDOT is a multimodal agency with responsibilities in building and maintaining roads, aviation, public transit, waterways, railroads, cycling and walking. Our involvement ranges from airport improvements to funding transit buses to planning for river ports. The Department of Transportation has approximately 4,000 employees with four statewide region facilities in Knoxville, Chattanooga, Nashville, and Jackson. TDOT headquarters is located in downtown Nashville.