The development of TNM 3.1 was based in large part on user feedback from the community. This version of TNM addresses many comments and suggestions for improvements to the analytical workflows. The acoustics remain the same as in TNM 3.0.
TNM 3.1 includes an installer and removes the database saving structure from TNM 3.0. Files can be imported and exported using an XML file format. Users can now import TNM 2.5 project files with coordinates, projections and adjustments by using this file format. TNM 3.1 also resolved bugs and enhanced the stability of the software so that it performs as intended.
Please contact TNMHelp@dot.gov for Technical Support. In the Subject Line please indicate whether you are seeking support for TNM 2.5 or TNM 3.1.
For announcements regarding available training opportunities please visit our main Training webpage at: https://www.fhwa.dot.gov/environment/noise/training/.
| Title/Description | Date | Files |
|---|---|---|
| TNM 3.1 Release Memorandum | 2021 | |
| Traffic Noise Model 3.1 | 2021 | |
| TNM 3.1 Introductory Video | 2021 | |
| TNM 3.1 Fact Sheet (FHWA-HEP-21-043) | 2021 | |
| TNM 3.0 to 3.1 Change Log (FHWA-HEP-21-039) | 2021 | |
| TNM 3.1 User's Guide/Help Menu (FHWA-HEP-21-042) | 2021 | |
| TNM 3.1 File Format Reference Manual (FHWA-HEP-21-040) | 2021 | |
| TNM 3.1 FAQs (FHWA-HEP-21-044) | 2021 | |
| TNM 3.1 Technical Manual (FHWA-HEP-21-041) | 2021 | |
| TNM 3.0 Validation Report (FHWA-HEP-20-011) Note: No changes were made to the Validation Report for TNM 3.1 |
2019 | |
| TNM 3.0 Getting Started Guide (FHWA-HEP-20-010) Note: No changes were made to the Guide for TNM 3.1 |
2019 |
