CLAY COUNTY, Fla. — It’s a plan that could give drivers at one of the county’s busiest crossroads a shortcut. It’s called a quadrant intersection, and it could solve an intersection problem that’s ...

A proposed quadrant intersection for U.S. 52 and Goodhue County Road 9 is currently projected to cost between $8 million and $9 million, a savings of up to $6 million over a diamond interchange.

CANNON FALLS — With essentially all interested parties at the local, state and federal level together in one room on Wednesday, the Minnesota Department of Transportation unveiled a new solution to ...

Joe Hummer, a professor in the N.C. State University Department of Civil Engineering, scoffed the first time he saw the “quadrant roadway” design on paper. At the time, nearly a decade ago, that paper ...