Category: Traffic Engineering

One-Way or the Other? Two-Way Traffic Conversion Requires Study

By Alexander Cowan, PE, PTOE A drive through the downtown area of many American cities includes time spent on one-way streets. Cities have used short segments of one-way traffic for hundreds of years to try to improve traffic flow and move higher volumes of traffic along downtown arterials. However, in recent years many communities have… Read More »

How Do Diverging Diamond Interchanges Work? Simply. Safely. Efficiently.

For over a decade, diverging diamond interchanges (DDI) have been efficiently moving traffic throughout the United States. Read More »

Innovative Intersections Make Roads Safer

By Kevin Kuhlow, PE, and Alexander Cowan, PE, PTOE Most drivers have either been involved with or have witnessed a scary crash or near miss at an intersection. About the Expert: Kevin Kuhlow, PE, manages transportation services in our Madison, Wisconsin, office. He has been involved with developing hundreds of innovative intersections and roundabouts throughout… Read More »