Environmental Planning


Noise Abatement Requirements

FHWA regulations for noise evaluation are detailed in Title 23: Highways - Part 772-Procedures for Abatement of Highway Traffic Noise and Construction Noise. The regulations require the consideration of noise abatement mitigation when traffic noise impacts that exceed a defined threshold are identified.  Update: The 2011 ADOT Noise Abatement Policy has been replaced by the May 2017 update entitled "Arizona Department of Transportation Noise Abatement Requirements". All federal projects that require a new noise analysis or existing projects that have yet to begin a noise analysis are required to follow these new requirements.

The FHWA regulations require the following during the planning and design of a highway project:

  • Identification of traffic noise impacts and examination of potential mitigation measures
  • Incorporation of reasonable (resident/owner preferences, noise reduction goals, cost effectiveness) and feasible (engineering and acoustic) noise mitigation measures into the highway project
  • Coordination with local officials to provide helpful information on compatible land use planning and control 
ADOT Requirements

Please contact the EPG Noise Specialist for consultation prior to beginning any noise analysis for all ADOT managed or approved projects. Ivan Racic (ADOT Noise Specialist) can be reached at 602.712.6161 or IRacic@azdot.gov.

Download the FHWA TNM 2.5 Noise Model.

Supplemental Guidance on the Application of FHWA’s Traffic Noise Model (TNM)

Recommended Best Practices for the Use of the FHWA Traffic Noise Model (TNM) pdf and webinar

The Arizona Ombudsman – Citizens Aide helps you resolve ongoing issues with State Agencies.

Civil Rights

Pursuant to Title VI of the Civil Rights Act of 1964, the Americans with Disabilities Act (ADA) and other nondiscrimination laws and authorities, ADOT does not discriminate on the basis of race, color, national origin, sex, age, or disability. Persons that require a reasonable accommodation based on language or disability should contact ADOT’s Civil Rights Office at civilrightsoffice@azdot.gov. Requests should be made as early as possible to ensure the State has an opportunity to address the accommodation.

De acuerdo con el Título VI de la Ley de Derechos Civiles de 1964, la Ley de Estadounidenses con Discapacidades (ADA por sus siglas en inglés) y otras normas y leyes antidiscriminatorias, el Departamento de Transporte de Arizona (ADOT) no discrimina por motivos de raza, color, origen nacional, sexo, edad o discapacidad. Las personas que requieran asistencia (dentro de lo razonable) ya sea por el idioma o discapacidad deben ponerse en contacto con la Oficina de Derechos Civiles de ADOT en civilrightsoffice@azdot.gov. Las solicitudes deben hacerse lo más antes posible para asegurar que el Estado tenga la oportunidad de hacer los arreglos necesarios.