LITTLETON, Colo. — Have you ever heard of a Quadrant Road? To put it simply, a quadrant road — or quad road for short — eliminates left turns at the main intersection. In this case, the City of Littleton just broke ground on the first quad road in the western United States at the very busy intersection of S. Santa Fe Drive and Mineral Avenue.

With no left turns, the theory is that traffic flows better as there is more green-light time for through movements. With as many as 60,000 vehicles per day on Santa Fe and 30,000 on Mineral, drivers can experience delays of about 20 minutes during peak times. If the intersection were to remain in the current configuration, delays would become significantly worse given traffic volumes are projected to grow to 115,000 vehicles per day through the inte

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