Minnesota Department of Transportation

511 Travel Info

Noise Analysis

Noise models

TNM 2.5 (effective July 10, 2017)

TNM 2.5 is available for download here.


This noise model is no longer supported by our office.


MnDOT now uses a noise model named MINNOISEV31 rather than the previous version MINNOISE. MINNOISE was a STAMINA based noise model that was modified to use MnDOT heavy truck emission levels and allowed the use of noise berms as well as noise walls. The new model MINNOISEV31 is the same as MINNOISE except that input limits for roadways, barriers and receivers were increased. The new limits can be found in the USERGUIDE referred to below.


This noise barrier design aid program is no longer support by our office.


For a copy of this guide please contact our office

For comments or questions about MINNOISE31 or MINNOPTV31 please contact
Melvin Roseen