Greensboro’s first Diverging Diamond Interchange (DDI) opens May 13-14.
It's located at I-73 (southern Urban Loop) and the revamped
W. Gate City Boulevard (formerly High Point Road).
The interchange is part of the High Point Road project (U-2412B), which widened roadway segments between Hilltop and Vickery Chapel roads.
According to NC Department of Transportation (NCDOT) officials, a DDI is unique because it allows traffic moving in two directions to temporarily cross to the left side of the road, moving a high volume of traffic through the intersection without increasing the number of lanes and traffic signals.
"This innovative design will allow motorists to easily access I-73 from W. Gate City Boulevard and prevent congestion and crashes that can occur when vehicles back up on interstate ramps," one NCDOT official said.
Review this NCDOT FAQ document about how to use a DDI
and watch this video about DDIs.