If it’s spring, it must be construction season. The much used I-75 and University Drive junction in Auburn Hills is undergoing construction to create the state’s first Diverging Diamond Interchange (DDI). Anyone who travels this stretch of road knows how badly it has deteriorated—especially the bridge—thanks to years of heavy use. A DDI is “designed to increase capacity, decrease congestion, and minimize new construction costs.” It differs from traditional intersections because it … [Read more...]