Tag: Traffic

Breaking Down the Zipper Merge

By Nathan Silberhorn, PE Here’s the scenario: signs warn that a lane of traffic will close soon, and two lanes of vehicles will be narrowed to one. Some drivers merge early and get to the through lane as fast as possible, then wait for traffic to advance. Others don’t seem to have a problem zooming… 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 »

Concrete vs. Asphalt: What’s the Best Roadway Surface?

By Brett Hollister, PE Budgets for roadways are tight, and elected officials have to seek the most value for limited construction and maintenance dollars. Unlike homeowners contemplating a new driveway, municipalities may be looking at miles of surface that must safely accommodate hundreds of vehicles a day. So which is the best investment, asphalt or… Read More »