I-17 thermal cameras found to be reliable wrong-way vehicle detection system in Arizona

The system features specialized illuminated wrong-way signs designed to get the attention of a wrong-way driver

July 08, 2020
wrong way vehicle system

An assessment from the Arizona DOT (ADOT) has found that the pilot I-17 thermal camera system in Phoenix has proven to be a reliable way to detect wrong-way vehicles, alert law enforcement, and warn other drivers to reduce the risk of crashes involving often-impaired wrong-way drivers.

ADOT has already expanded use of the technology, with plans to do more as time and funding allow. The assessment includes recommendations for components to be added at urban and rural locations as funding becomes available. 

The assessment found that compared to waiting for 911 calls from other drivers, the immediate alerts provided by thermal camera detections result in faster response times by law enforcement. 

“The I-17 pilot system has delivered positive results and helped provide a road map for expanding use of technology to reduce the risk from wrong-way drivers,” Dallas Hammit, ADOT’s state engineer and deputy director for transportation, said in a statement. “We’re using the thermal camera technology elsewhere and have established plans for other areas, including rural locations.”

The thermal camera detection technology that is key to the I-17 system has now been installed at most interchanges along the Loop 202 South Mountain Freeway. Installations are underway along Loop 303 in the West Valley, and the technology will be added as part of Loop 101 expansion projects that are under construction east of I-17 and also south of U.S. 60.

The $4 million I-17 pilot system was funded by Proposition 400, the dedicated sales tax for transportation improvements approved by Maricopa County voters in 2004. Since the system began operating in January 2018 between the I-10 “Stack” interchange and Loop 101, it has detected more than 100 vehicles traveling the wrong way, mostly on exit ramps and frontage roads along the Black Canyon Freeway. 

The alert system also features specialized internally illuminated wrong-way signs with flashing LED lights along I-17 off-ramps, designed to get the attention of a wrong-way driver.

-------

SOURCE: Arizona DOT

Related Articles

WSDOT State Route 104 test site (wet, dusk) demonstrates the difference between traditional all glass beads and the wet performing bead mix.
WSDOT State Route 104 test site (wet, dusk) demonstrates the difference between traditional all glass beads and the wet performing bead mix.
Consider the following outrageous hypothetical situation: “When it rains at night, new high-tech headlights automatically reduce their light output…
September 17, 2021
DriveOhio cuts ribbon on 33 Smart Mobility Corridor
Image: DriveOhio
Officials this week held a ribbon cutting for the 33 Smart Mobility Corridor—which is considered to be "the world’s most connected highway"— in…
September 16, 2021
transit with AV technology
Image: Stantec
The Jacksonville Transportation Authority (JTA) has selected Stantec to design and build Phase 1 of the Ultimate Urban Circulator (U2C) Program,…
September 15, 2021
It’s no secret that the infrastructure supporting our nation’s transportation system is in disrepair, if not outright crisis. According to the…
September 14, 2021
expand_less