Arizona Department of Transportation engineers are working to develop more durable road materials that can withstand the ...

Incidents of wrong-way collisions on Arizona highways are decreasing, according to the state's Department of Public Safety.

Here is what to expect when traveling throughout Arizona on Memorial Day weekend, including traffic issues, event coverage ...

Readers have asked about Arizona's cleaner-burning gasoline formulas. Do they improve air quality, health and greenhouse gas ...

Tempe’s photo-enforcement program officially entered its next phase Friday. Drivers will now face fines for speeding or running red lights at 14 intersections across the city. Any driver caught ...

The Arizona Board of Regents is considering funding a transportation research project that aims to make roads safer for ...

On Sunday, the Arizona Department of Transportation said the southbound lanes of State Route 87 near milepost 242, just south ...

Western Arizona travelers should brace for delays on I-10 near Tonopah starting Memorial Day, a peak holiday travel day.

ADOT said the Broadway Curve improvements were needed since traffic on the I-10 freeway is projected to increase by 25%.

reports by the Arizona Department of Transportation show. On Sept. 7, ADOT published its annual Motor Vehicle Crash Facts report, which shows an increase in the number of crashes, injuries and ...