Illinois Department of Transportation, Erica Borggren, Acting Secretary
Patrick J. Quinn, Governor
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Part I Noise Fundamentals

Part II Noise Analysis

Part III Noise Abatement

Frequently Asked Questions

Glossary and Acronyms

Benefited Receptor

  • Any receptor afforded a 5-dBA or greater traffic noise reduction
  • May include receptors with a direct line of sight to the roadway and receptors shielded from the roadway by other buildings
  • Total number of benefited receptors is used to determine the cost per benefited receptor;

Cost per Benefited Receptor = Barrier Cost / Number of Benefited Receptors

  • Typical noise barriers cost $1,500,000 per mile

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