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Posts tagged with "transportation improvements"

November 24, 2021
One of a Kind DDI Design Accommodates a Complex Urban Setting

Diverging Diamond Interchanges (DDI) is a unique interchange design that helps control increased traffic volumes, safety, and right of way concerns around an interchange. The design for the Coralville DDI located on I-80 and 1st Avenue will help the interchange accommodate the unique circumstances that developed the final layout.

August 31, 2011
New Road to Economic Growth

The City of Sioux Falls, South Dakota invested $11.1 million to stay ahead of the growth demand with proactive transportation improvements on its 69th Street and Southeastern Avenue project. The City experienced rapid growth and increased demand on a collateral arterial roadway, 57th Street, which resulted in many typical challenges such as increased congestion, roadway deterioration, traffic safety concerns, roadway capacity deficiencies, and delay caused by at-grade rail crossings.

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