Tag Archives: DivergingDiamond

Could the Diverging Diamond Highway Design Reduce Car Accidents in Nashville?

Not all innovations involve new technology, but instead just a small but important tweak to an existing design. As local officials continue to look for ways to reduce the number of Nashville car accidents, one method they may find to be effective is the diverging diamond interchange (DDI), which involves making a small but important change to existing intersections. How Does the Diverging Diamond Highway Design Work? Diverging diamond interchanges work by crisscrossing the exit and entrance ramps underneath a roadway. The DDI enables drivers to avoid having to make left-hand turns through opposing traffic and makes it very difficult for drivers to mistakenly enter the highway heading in the wrong direction. A University of Missouri environmental and civil engineer told Wired that left-hand turns through opposing traffic are inefficient and dangerous. This is due to the fact that these types of left-hand turns force opposing traffic to waste green…
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