Category: Transportation Engineering

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 »

Complete Streets Can Address Aesthetic, Environmental Concerns

By Jeffrey Siewert, PE Complete Streets are created for everyone. Traditionally roadways were primarily designed for motor vehicles. Over time, roadway design has evolved to include multimodal transportation concepts and features. About the Expert: Jeffrey Siewert, PE, is a project manager in the Tampa-Hidden River Parkway office in Florida. Complete Streets elements are part of… Read More »

Well-designed Sidewalks Keep Pedestrians, Communities on the Move

By Jeffrey Siewert, PE Safe sidewalks are essential. They keep pedestrians connected to their communities for work and recreation, and economies thrive when well-designed sidewalks can keep all that foot traffic moving. Why build sidewalks? Here are a few reasons: Sidewalks help keep pedestrians and motorists separated and safe. The Federal Highway Administration (FHWA) notes… Read More »