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State transportation planners who studied multiple options for proposed passenger train service between Phoenix and Tucson are recommending one that would follow largely existing freight railroad tracks and serve both Sky Harbor International Airport in Phoenix and downtown Tucson.

Crews are set to demolish nearly 200 vacant homes, clearing the way for the expansion of a metropolitan Phoenix freeway.

Traffic delays in Tucson and Phoenix last year cost the average commuter more than $1,000 in extra fuel and lost time, among other costs, according to a new report on rush-hour congestion on the nation’s highways.

The first benefits of a transit tax increase that was winning approval from Phoenix voters will likely be increased service by Valley Metro’s Dial-a-Ride and more attention to potholes, supporters said Wednesday.

Phoenix's mayor says a transportation plan that will include a sales tax increase has triumphed at the polls.

Arizona Department of Transportation officials said Wednesday the state has been given extra time by the federal government to develop a driver's license that complies with new federal security rules mandated by the 2005 REAL ID Act, a move that means state residents will likely be able to continue using their current documents at airports and federal buildings for five more years.

Estimated travel times are being displayed longer and on additional days on overhead message signs along Phoenix-area freeways.

A judge is refusing to block a planned freeway project in the Phoenix area. U.S. District Judge Diane Humetewa on Tuesday denied a request for a pretrial preliminary injunction.

California transportation officials say they'll need to the end of September ai??i?? and about $5 million ai??i?? to fully reopen the desert highway where flash flooding washed out a bridge.

Arizona Trucking Association President Tony Bradley says one good thing may have come out of the closure of a section of Interstate 10 this week – it could point up the need to fix the nation’s infrastructure.