Traffic Memorandums
Updates, revisions, or additions to Traffic Standard Drawings, Guidelines, or Manuals will be issued through formal Traffic Memorandums.
If you want to be added to the distributions list for future Traffic Memorandums, email TDOT.TrafficDesign.ProductionSupport@tn.gov
| Number | Date | Subject |
|---|---|---|
| TOM 1001 | 10-29-10 | Regarding Traffic Cameras, Traffic Signals, and Speed Limits |
| TOM 1401 | 07-03-14 | Guidelines for Gateway Monuments and Transportation Art Guidelines for "Welcome to" Signs for Controlled Access Highways (Voided) |
| TOM 1602 | 12-23-16 | Regarding Revised, Voided, and/or New Design Documents |
| TOM 1702 | 10-2-17 | Regarding TDOT No Longer Supporting Pole Designer Software |
| TOM 1801 | 05-15-18 | Guidance on Setting Speed Limits (voided by TOM1902) |
| TOM 1802 | 05-17-18 | Roadway Lighting Plan Submission Requirements |
| TOM 1803 | 06-1-2018 | Jurisdiction and Maintenance of Signs in Cities and Counties (Voided by TOM 2104) |
| TOM 1804 | 05-31-2018 | Interim Approvals |
| TOM 1805 | 8-1-2018 | Work Zone Speed Reductions on Freeway and Expressway Resurfacing Projects |
| TOM 1806 | 10-15-2018 | Traffic Design Manual (August 2018) |
| TOM 1807 | 11-27-2018 | Dedicated Short Range Communications (DSRC) Statewide Guidance Document v1.0 (and subsequent revisions) |
| TOM 1901 | 1-14-2019 | TN Supplement to the Standard Highway Signs Book (November 2018) |
| TOM 1902 | 4-1-2019 | Guidance on Setting Speed Limits Revision 1.2 |
| TOM 1903 | 4-10-2019 | Regarding Revised, Voided, and/or New Standard Documents |
| TOM 1904 | 5-2-2019 | Work Zone Safety and Mobility Manual (May 2nd, 2019) |
| TOM 1905 | 10-23-2019 | Regarding Revised, Voided, and/or New Standard Documents |
| TOM 1906 | 12-20-2019 | Regarding Revised, Voided, and/or New Standard Documents |
| TOM 2001 | 1-17-2020 | TDOT Truck Route Restriction Guidelines - 2019 |
| TOM 2002 | 3-17-2020 | TDOT Guidelines for Gateway Projects - 2020 (Voided by TOM 2004) |
| TOM 2003 | 9-20-2020 | ADA Project Compliance Scenarios for Traffic Signal Projects - Sept. 2020 |
| TOM 2004 | 7-30-2020 | TDOT Guidelines for Gateway Projects-2020 Update |
| TOM 2005 | 11-17-2020 | Traffic Design Manual (June 2020) |
| TOM 2006 | 11-17-2020 | Regarding Revised, Voided, and-or New Standard Drawings |
| TOM 2007 | 12-14-2020 | Traffic Signal Design Guidance |
| TOM 2101 | 7-12-2021 | TDOT Traffic Signals and Roadway Lighting Construction Reviews and Requests (Voided by TM 2503) |
| TOM 2102 | 7-22-2021 | Surveillance Cameras Operated by Law Enforcement on Interstates and State Routes for a Non-Highway Use (Voided by TM 2504) |
| TOM 2103 | 10-04-2021 | Traffic Signal Design Guidance |
| TOM 2104 | 10-01-2021 | Jurisdiction and Maintenance of Signs and Pavement Marking in Cities and Counties (Revised TOM 1803) |
| TOM 2201 | 2-01-2022 | Highway System Access Manual |
| TOM 2202 | 2-16-2022 | TDOT Traffic Design Manual Chapter 15 Roadway Lighting Design Supplement |
| TOM 2203 | 10-21-2022 | Regarding New Traffic Operations Division Standard Drawings |
| TOM 2301 | 4-28-2023 | Updated Road Diet Guidance |
| TOM 2302 | 8-11-2023 | Traffic Design Manual Restructuring |
| TOM 2303 | 9-20-2023 | Regarding Traffic Design Division Standard Drawings |
| TM 2401 | 3-25-2024 | Traffic Operations Memorandum Name Change |
| TM 2402 | 5-13-2024 | Proposed PHB-RRFB Upgrade to Traffic Signals at or near Unsignalized Intersections |
| TM 2403 | 4-25-2024 | Project Information and 511 signs (VOIDED) |
| TM 2404 | 5-13-2024 | Traffic Signal Design Standards |
| TM2405 | 8-7-2024 | TMP Form Update to Coordinate with EPIC and the PDN |
| TM 2406 | 11-31-2024 | Regarding Revised Traffic Design Division Standard Drawings and New Lighting Manual |
| TM 2407 | 11-31-2024 | Baseline Special Provision 725 for TDOT ITS Projects |
| TM 2408 | 11-31-2024 | Regarding Revised Traffic Design Division Standard Drawings |
| TM 2501 | 01-29-2025 | Regarding Revised Traffic Design Division Standard Drawings |
| TM 2502 | 4-30-2025 | Interim Approval of Residential Driveway Temporary Signal |
| TM 2503 | 4-30-2025 | TDOT Construction Reviews and Requests for Projects involving Traffic Signals and Roadway Lighting Items (Revised TOM 2101) |
| TM 2504 | 4-30-2025 | Surveillance Cameras Operated by Law Enforcement on Interstates and State Routes for a Non-Highway Use (Revised TOM 2102) |
| TM 2505 | 4-30-2025 | Regarding Revised and Removed Traffic Design Division Standard Drawings |
| TM 2506 | 7-31-2025 | Regarding Revised or Voided Traffic Design Division Standard Drawings |
| TM 2507 | 7-31-2025 | Regarding Revised or New Traffic Design Division Standard Drawings |
| TM 2508 | 09-17-2025 | Regarding Revised or New Traffic Design Division Standard Drawings |
| TM 2509 | 09/24/2025 | Project Info and 511 Signs (VOIDS TM 2403 |
| TM2510 | 12/10/2025 | Regarding Revised or New Traffic Design Division Standard Drawings |
| TM2511 | 12/29/2025 | Regarding New or Revised Traffic Design Division Standard Drawings |
| TM2512 | 12/29/2025 | MUTCD Compliance |
| TM2513 | 12/29/2025 | 23 CFR Part 630 Subpart K Updated Policy Compliance |
| TM2601 | 2/5/2026 | Regarding Revised Traffic Design Division Standard Drawings |
| TM2602 | 2/5/2026 | Tennessee Supplement to the Standard Highway Sign Book - 2026 Edition |
| TM2603 | 3/31/26 | Work Zone Field Manual for Maintenance Operations - March 2026 Edition |
| TM2604 | 4/20/2026 | TDOT Highway System Access Manual (HSAM) |
| TM2605 | 4/30/26 | Traffic Design Manual Modules 1 & 3 – April 2026 Edition |
| TM2606 | 5/29/26 | Work Zone Design Manual - May 2026 Edition |
| TM2607 | 7/31/26 | Regarding Revised and Removed Traffic Design Division Standard Drawings |
| TM2608 | 10/8/26 | Regarding Revised Traffic Design Division Standard Drawings |
This Page Last Updated: October 8, 2026 at 11:19 AM