APPLETON — In an effort to increase traffic safety, the Wisconsin Department of Transportation is constructing three new diverging diamond interchanges as part of the Interstate 41 expansion ...

Reader question: Do diverging diamond interchanges cost less to build than traditional diamond interchanges or roundabouts? Are they safer than roundabouts? Why change from roundabouts?

Freeway interchanges with nicknames including “bowl” are a regular part of many Las Vegas Valley motorists daily commutes. From the Spaghetti Bowl where Interstate 15 and U.S. Highway 95 ...