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Innovation award for ADOT’s I-17 wrong-way vehicle system

GCN magazine recognizes first-in-the nation thermal-camera system
September 18, 2018

PHOENIX – The Arizona Department of Transportation’s pilot Interstate 17 wrong-way vehicle alert system being tested in Phoenix has been recognized with a Government Innovation Award from GCN, an information technology industry magazine.

capturefb71d978c8006c57b531ff0000a35efcGovernor Doug Ducey, who has directed ADOT to advance efforts to develop wrong-way vehicle countermeasures, including the I-17 system, said the award recognizes the state’s commitment to public safety.

“Too frequently we see reports of another death on our highways due to a wrong-way driver – often one impaired by alcohol or drugs,” Governor Ducey said. “Arizona has taken meaningful steps to crack down on wrong-way driving, and we are proud to lead the way among states for developing and testing measures that make our roads safer and protect innocent drivers.”

In addition, Governor Ducey championed a new law that has wrong-way drivers under the influence of drugs or alcohol face felony charges.

The first-in-the-nation system being tested on 15 miles of I-17 uses thermal cameras to detect and track wrong-way vehicles while also immediately alerting ADOT and the Arizona Department of Public Safety. This can save troopers valuable time in responding to incidents rather than waiting for 911 calls from other motorists.

“ADOT is working alongside several other state agencies to explore every viable option when it comes to detecting and preventing wrong-way vehicles,” said Dallas Hammit, ADOT’s state engineer and deputy director for transportation. “While we know that no system can be designed to completely prevent wrong-way drivers, the I-17 system is a significant step forward in these efforts.”

The system also allows ADOT to quickly warn other drivers about wrong-way vehicles via messages on electronic freeway signs.

The pilot project is allowing ADOT to evaluate how technology can be used to reduce the risks associated with wrong-way drivers before expanding it to other freeways.

“This technology so far has shown great promise,” said Brent Cain, who leads ADOT’s Transportation Systems Management and Operations division. “With a commitment to helping every driver get home safely, our entire team has worked tirelessly to generate and research ideas and then design, implement and test this system.”

Thermal cameras have recorded more than 30 detections of wrong-way vehicles, mostly along I-17 off-ramps located within the project’s boundaries between the I-10 “Stack” interchange near downtown and the Loop 101 interchange in north Phoenix. Most the drivers in those incidents have turned around on an off-ramp without entering the mainline lanes of I-17. 

The system’s 90 thermal cameras are positioned to detect wrong-way vehicles entering off-ramps or traveling along I-17. Through the computerized decision-support system, the pilot project also is designed to trigger new illuminated wrong-way signs with flashing red lights aimed at getting the attention of the wrong-way driver.

This 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. While technology holds promise for reducing the risk of serious crashes, it can’t prevent impaired drivers from getting behind the wheel.

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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.