August 13, 2015
The Arizona Department of Transportation (ADOT) is testing wrong-way vehicle detection devices next to off-ramps along Phoenix-area freeways as part of an ongoing research effort to reduce the risk of wrong-way crashes.
Three detectors, manufactured by Tapco have been installed along the northbound Interstate 17 exit to State Route 74, the eastbound Interstate 10 exit at Ray Road and the northbound Loop 101 off-ramp at Thunderbird Road. Two other detection devices, manufactured by Wavetronix, were instal