Before and after photos show how ADOT's Loop 202 South Mountain Freeway project is advancing quickly.

This week's Art of Transportation is all about giving some scale to what goes into a major undertaking such as the South Mountain Freeway.

We are launching a website with a collection of safe-driving resources to help drivers make better decisions behind the wheel.

After an extended stretch of dry weather, Arizona drivers should prepare for driving in the rain – or in snow at higher elevations – late this week and into the weekend.

We've already widened 161 miles of US 93, the main route between Phoenix and Las Vegas, to divided four-lane highway. Now we're launching a project to widen nearly 4 more miles.

We have another "Where in AZ??" challenge that is sure to stump some of you but be easy for others.

A recent peer-to-peer exchange brought representatives of the North Texas Tollway Authority to ADOT's Traffic Operations Center.

ADOT is part of career fairs held at the state's three public universities, with exciting opportunities for graduating engineering students.

Here are some tips to help cut down on frustrations while crews are doing the important job of widening 13 miles of the Loop 101 Pima Freeway east of I-17.

Now in its fourth year, one woman's dream of a one-day cleanup of all 45 miles of State Route 286 in southern Arizona is even closer to happening.

In partnership with festival organizers, we've helped reduce delays not just for attendees but for those heading to and from points east on US 60.

This road is known by more than one name. Join week's "Where in AZ??" challenge!

A video by the National Operations Center of Excellence features an ADOT engineer explaining the benefits from new striping and signs along a westbound stretch in Tempe.

Interstate 10: Earley Road to Interstate 8If a picture is worth a thousand words, then slideshows of our I-10 widening projects in Casa Grande and the Eloy area are worth many thousands.

Learn more about work to replace a box culvert at I-17 and Pinnacle Peak Road and why it's critical to a project to create a modern diamond interchange there.

In the midst of the Great Depression the state Highway Commission came up with an idea to boost Arizona's copper industry through some unusual license plates.

Work to create a modern Ina Road interchange with I-10 maintains and improves connections with The Loop, a system of trails and bike routes in the Tucson area.

We have another scenic spot for Arizona experts to identify!

ADOT's International Border Inspection Qualification has helped Mexican truckers achieve a more than 99 percent success rate on safety inspections while crossing the international border.

Those selected for the program delve into a variety of disciplines, helping each find the niche reflecting their passions and skills.