PHOENIX (AP) — Arizona transportation officials are responding to a flurry of deadly wrong-way crashes with a plan for a test project on a Phoenix freeway that includes using sensors to detect wrong-way drivers and alert authorities and other motorists. The state Department of Transportation announced Monday the project will be conducted on a yet-to-be-determined 3- to 4-mile stretch of Interstate 17 after a months-long study conducted by two engineering firms. Under the test project, existing traffic sensors will be modified and new ones installed to detect wrong-way vehicles to provide alerts to state troopers and to post warnings on overhead message board.Read more on NewsOK.com