Traffic Noise Model Development
Project Information
The Federal Highway Administration's traffic noise model (TNM), is a regulatory tool for conducting noise studies on Type I and II projects. Volpe will support FHWA’s development of TNM 3.0 and future versions, including the graphical user interface (GUI), database, and acoustics. This support involves providing research and guidance on database requirements for the core acoustics, design intents for various components of the GUI, and model acoustic improvements. Those improvements include the integration of the roadway construction noise model (RCNM) into TNM 3.1 and other improvements informed by research tasks related to roadway noise source heights (tire, engine, exhaust splits) and reference energy mean emission levels (REMEL) for different pavements and vehicle types.
- 693JJ319N300053
- Planning, Environment, and Realty
- FY 2002-2022 / Planning, Environment, and Realty / Modeling and Analysis Tools
- Analysis, Modeling, and Simulation
- Data and Analysis
Software:
- TNM 3.0
- TNM 3.1
- Future Versions TBD
Publications:
- Fact Sheet (TNM 3.0 and TNM 3.1)
- FAQ (3 and 3.1)
- Validation Report (3.0)
- Technical Manual (3.0 and 3.1)
- XML Report (3.1)
- Change Log (3.1)
- User's Guide (3.0 and 3.1)
- Getting Started Guide (3.0)
- Improves accuracy of model predictions at low and high frequencies.
- Enhances features and functionality of the TNM software.
- Allows for future model enhancements to be implemented more efficiently.
- Improves integration with current analyst workflows, including use of GIS data.
AMRP = Annual Modal Research Plan