We're going back to 1977 and showing you a unique vehicle used to test the wet friction characteristics of a road.

What do smashed melons, historic dust storms and skidding cars have in common? They're all featured in this week's #FridayFive.

Summer has arrived. From extreme temperatures to extremely strong storms, we all need to know how to handle summer in Arizona.

The Deck Park Tunnel is more than a way to get cars from point A to point B. Vent rooms with giant fans are ready to keep fresh air flowing when needed.

Check a video offering bird's-eye views of progress we're making on widening two stretches of I-10 in Pinal County.

Specialty plates bring in millions for cancer research, veteran's services and other worthy causes.

Steps ADOT crews and contractors' employees take when the temperature blows past 110 can help keep you safe as well.

We’re replacing stop signs at the ends of exit ramps at Rita, Wilmot and Kolb roads to move traffic more efficiently in a growing area.

Last night’s events on Interstate 10 in the West Valley are so absolutely unacceptable, so outrageous, that words can’t do justice to emotions.

For the next few weeks we’ll be putting things in place to begin what will be an 18-month project.

By September, we expect all vehicle inspection locations statewide to be taking online appointments.

When motorists veer out of control off the highway, traffic safety engineers have developed barriers designed to soften collisions with a wall, pole or other immovable objects.

Prescott Adopt-a-Highway group goes back decades.

Today's Art of Transportation gives us an Impressionist view of the familiar orange traffic barricade.

ADOT's director does a "gemba walk" at a freeway pump station.

In designing the future Loop 202 South Mountain Freeway, ADOT found inspiration from one of Arizona's most influential residents - the late Frank Lloyd Wright.

Our International Border Inspection Qualification program has made a dramatic difference for truck drivers and trucking firms in Mexico, and for international commerce.

With school back in session, it's a good time to remind ourselves of a few rules we may have forgotten during the Summer.

ADOT has operated the Grand Canyon National Park Airport for more than 40 years. for this Throwback Thursday we look back at how this tourism destination looked back in the day.

Make sure the summer "gators" don't cause you a problem when you're on the highway.