Engineering and Construction

Systems Technology

Intelligent Transportation Systems (ITS)

The Systems Technology Group supports Intelligent Transportation Systems (ITS) throughout Arizona and Freeway Management Systems (FMS) in the Phoenix and Tucson metropolitan areas. Staff stays on the leading edge of technology, working with ITS equipment such as ramp meters.

At on-ramps, ramp meters spread the amount of traffic entering the freeway over time to improve merging and to increase freeway speeds. The green and red lights are programmed to vary in duration depending on the volume and speed of traffic on the freeway and the on-ramp. A complex process of corridor evaluations are involved in determining the location and timing pattern of the ramp meters. Ramp meters improve both traffic safety and traffic flow.

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 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 Las solicitudes deben hacerse lo más antes posible para asegurar que el Estado tenga la oportunidad de hacer los arreglos necesarios.