I-75/University Parkway Diverging Diamond Interchange (New 07/01/14)

MODOT Video of I-44/Kansas Expressway DDI

Popular Science names DDI one of the best innovations of 2009

Q and A article with Chlewicki in Dewberry’s Dimensions publication

Article in Engineering News-Record on DDI (Subscription required, hard copy in Dec. 21, 2009 issue)

Article in NPR on the DDI

New Interchange and Intersection Designs: The Synchronized Split-Phasing Intersection and the Diverging Diamond Interchange

FHWA Driver Evaluation of the Diverging Diamond Interchange

FHWA Public Roads – Doing More With Less

FHWA Public Roads – Nov/Dec 2010 – Double Crossover Diamond

Time Magazine Article on the DDI

Slate.com Article on DDI (7/31/01)

The first DDI in the Atlanta Region (6/11/12)

Editorial from Lincoln Journal Star in Nebraska (6/11/12)