Change is urged in transportation habits 1130260996228386

September 02, 2005 3:00 AM

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  • Here's how a diverging diamond interchange works

    The N.C. Department of Transportation made this video to explain the "diverging diamond" interchange or DDI. The department is planning to build two of them in the Triangle, at the Beltline and Western Boulevard in Raleigh and at Interstate 40 and N.C. 42 in Johnston County.