This is just the beginning,” one Defense official said about the deployment of active-duty troops to the border with Mexico.

In Tucson, Arizona, NoTraffic’s platform has been deployed at over 80 intersections, leading to a dramatic 46% reduction in ...

A Casa Grande Republican wants to impose a $500 fine on slow-moving drivers on Arizona highways who insist on driving in the ...

I drive long distances for my job, so my self-driving Cybertruck helps reduce my exhaustion. But angry people just put their ...

The Arizona Department of Transportation announced major weekend traffic closures for the Broadway Curve Improvement Project.

As Arizona’s Family reported, one of the threatened species is the cactus ferruginous pygmy owl, whose climate would be threatened as part of the highway’s construction.

Foes of a plan to construct a new interstate highway — including a segment that could go through environmentally sensitive ...