Sound Quality

WisDOT Policy

• FDM Chapter 23 Noise
• FHWA Noise Regulation

WisDOT Forms and Tools Page

Refer to the Forms and tools page for factor sheets and guidance

Documentation of Noise Analysis

• FDM section 23-45 documentation of noise analysis

Frequently Asked Questions About Noise Barriers

• Noise barrier brochure August 19, 2025

How Weather Affects Traffic Noise

• Traffic noise and weather brochure

FHWA Information/Guidebooks

• Noise compatible planning
• Noise barriers
• Noise policy frequently asked questions
• Highway traffic noise: analysis and abatement guidance
• Traffic noise model (TNM)

Mitchell interchange noise barrier in Milwaukee

U.S. 41 noise barrier in Appleton