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 oversees the development of plans, policies, specifications, and standards for traffic within TDOT’s Bureau of Engineering.
Key areas of responsibility include:
- Traffic signals
- Signs
- Traffic markings
- Roadway lighting
- Traffic studies
- Highway safety
- Highway access
- Policy development
- Research
- Advanced transportation technologies
- Traffic modeling
- Work zones
The division works with the Traffic Operations Division to support traffic-related projects, technologies, and installations.
Together, the division help ensure these projects are successfully deployed and operated across the transportation system.
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