Media Center


ADOT News Release

For additional information:

ADOT Media Relations



I-17 thermal-camera system alerts ADOT, DPS to wrong-way truck

Driver taken into custody near the I-10 ‘Stack’ interchange in Phoenix
January 07, 2019

PHOENIX – The Arizona Department of Transportation’s thermal camera-based wrong-way vehicle detection system along Interstate 17 in Phoenix alerted authorities and other motorists to a pickup truck being driven the wrong way on the freeway early Monday morning.

1-7-Wrong-Way VehicleNo one was hurt as the vehicle traveled southbound on northbound I-17, primarily in the HOV lane, from Camelback Road until just before the “Stack” interchange with Interstate 10, where Arizona Department of Public Safety troopers took the driver into custody.

As designed, a thermal camera immediately detected the truck entering the northbound I-17 exit ramp at Camelback Road shortly after 3 a.m. and alerted the Arizona Department of Transportation’s traffic operations center staff as well as the AZDPS dispatch center. At the same time, ADOT activated wrong-way vehicle warnings on overhead freeway signs in the area.

Thermal cameras on the I-17 mainline at Indian School, Thomas and McDowell roads provided updates, with video, to ADOT and AZDPS as the vehicle proceeded southbound in the northbound lanes.

DPS troopers who were dispatched right after the first detection caught up with the driver south of McDowell Road.

ADOT’s first-in-the-nation system, which includes 90 thermal cameras along 15 miles of I-17 between the I-10 Stack and the Loop 101 interchange in north Phoenix, has been operational for one year while engineers evaluate the performance of its components. Those include a computerized decision support system and specialized background-illuminated wrong-way signs that light up in an effort to get the attention of wrong-way drivers, who in many cases are severely impaired.

So far, the $4 million I-17 system has recorded detections of more than 45 wrong-way vehicles within the project’s boundaries. Nearly all of the drivers in those incidents either “self-corrected” and turned around on an off-ramp or drove on the frontage road without entering the mainline lanes of I-17.

The I-17 technology cannot prevent all wrong-way crashes from happening. The primary goal is reducing the risk of serious crashes by alerting AZDPS and ADOT to wrong-way vehicles much faster than waiting for 911 calls from other motorists. Faster detection is a key to giving law enforcement officers an improved chance of responding to a wrong-way vehicle. While technology holds promise for reducing the risk of serious crashes, it can’t prevent impaired drivers from getting behind the wheel.


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.