Traffic Design Division
Traffic Design Division
William R. Snodgrass Tennessee Tower, 20th Floor
312 Rosa Parks Ave. Nashville, TN 37243
Office 615.741.2466
Andy Barlow, P.E. | Director
Andrew.Barlow@tn.gov
The Traffic Design Division is responsible for overseeing the development of plans, policies, specifications, and standards for the traffic discipline within TDOT’s Bureau of Engineering. Key areas of responsibility include core traffic services such as traffic signals, signs, traffic markings, roadway lighting, traffic studies, highway safety, highway access, policy development, research, along with other areas such as advanced transportation technologies, traffic modeling, and work zones. The division works in conjunction with the Traffic Operations Division to ensure successful deployment and operation of traffic-related projects, technologies, and installations.
Related Resources:
Work Zone Safety & Mobility Manual
Standard Traffic Design Drawings
Manual on Uniform Traffic Control Devices (MUTCD), 11th Edition
Tennessee Supplement to the Standard Highway Signs Book, 2026 Edition