ADOT Research Center

"Arizona's Transportation History" provides us with a look at how and why our state's highways were numbered.

ADOT’s Research Center recently published an interesting new report that takes a closer look at the relationships among land use, transportation and gridlock.

You might say each ADOT road construction project is a sum of its parts

The ADOT Research Center Library might not carry any best-sellers, but where else are you going to find a title like, “Benefits of high volume fly ash: new concrete mixtures provide financial, environmental and performance gains”?

Much has changed since ADOT got its start in 1927. Back then, the agency was known as the Arizona State Highway Department and roads certainly were built a little differently. Methods, materials and technology have changed so much since then.