Many variables affect this, but long the holiday weekend and various celebrations are contributing factors.

After hibernating for the winter, State Route 67 reopens May 15 from Jacob Lake to the Grand Canyon North Rim.

ADOT crews take extra steps as they work on the historically significant road, State Route 88.

This is a more unusual location for "Where in AZ??" and we're counting on our readers to pinpoint this location.

Jeffy said it best (or was it Billy, Dolly or PJ?): "Don't get dead." National Transportation Week draws focus to safe driving.

In this blog, the second remembering cartoonist and Arizona resident Bill Keane, we take a closer look at the cartoon itself.

If you've recently visited the MVD and have wondered why you can't find a chair, this blog post will answer your question.

A 1971 public meeting in Globe to discuss a new route for US 60/70 is one example of ADOT's commitment to public comments on its projects.

A new Arizona Highways guidebook is available for hikers, weekend warriors and others who love the outdoors.

Tall pine trees are featured in this week's "Where in AZ??" challenge.

For basic customer-to-customer transactions, you can now transfer titles online at ServiceArizona.com.

Camera views of I-8 near Casa Grande and I-15 near Littlefield have been added to ADOT's online universe at az511.gov.

ADOT is once again temporarily lowering the speed limit on Interstate 17 just north of the Valley. Slow down for safety.

Everybody knows that humans cause fires. It’s also true that only humans can prevent fires.

A recent case illustrates how ADOT detectives assist other law enforcement agencies, even after hours.

We hope you're not too relaxed this holiday weekend to play "Where in AZ??"

How many songs in your collection involve some aspect of transportation? You may be surprised.

It sounds like something Forrest Gump would say: Bridges are like icebergs – you never know what you really have.

A 1978 photo from the ADOT archives shows Motor Vehicle Division inspectors, the precursors to Enforcement and Compliance Division officers today, working at the US 66 port of entry in Kingman.

ADOT is seeking more volunteers to help clear litter from state highways.