SAITE Monthly Meeting - Friday, January 21, 2022
Posted by saite on Jan. 14, 2022 / Southern Arizona Chapter Notifications / Subscribe 0
PRESENTATION SUMMARY:
ADOT’s newest interchange in the Tucson region at Houghton/I-10 is a Diverging Diamond Interchange (DDI). The DDI design briefly switches traffic to the other side of the road to better facilitate traffic flow. Signal operations are simplified in a DDI because there is no need to allocate green light time specifically for left turn movements from the cross street to the on-ramps. Instead, left turns are made using free-flowing lanes after the cross-over. Jay Gomes will present on ADOT’s experience with the DDI at Houghton/I-10 and elsewhere in Arizona.
JAY GOMES BIO:
James "Jay" Gomes, Jr., P.E. is a Tucson, Arizona native who achieved a Bachelor of Science in Civil Engineering with a Transportation Emphasis from the University of Arizona in 2004. He has worked with the Arizona Department of Transportation since college as an intern, then completing the Engineer-In-Training Program, and worked in the Tucson District with the Construction Group as a Resident and Senior Resident Engineer. More recently in 2015, Mr. Gomes began working with ADOT's Transportation Systems Management and Operations Division as the Southern Region Traffic Engineer. While in this capacity, he oversees and manages the traffic engineering, maintenance, and operations on the State Highway System within Southern Arizona. This includes review, approval, and development of traffic studies, review and development of signing, striping, and signal design plans from scoping to operations, and development of traffic safety and operations projects.
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