Category: Traffic Engineering

Non-circular Roundabouts Have Their Place

Most drivers think about roundabouts as perfect circles: You pull up to the roundabout, yield to the cars coming from your left, enter the roundabout, and drive counter-clockwise until exiting onto your desired road. About the Expert: Kevin Kuhlow, PE, is a leading roundabout designer in the US. He has been involved with developing hundreds… Read More »

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 to Design a Better Parking Lot

By Scott Maier, PE Parking lots are not generally known as the most orderly environment in modern society. A poorly designed parking lot could easily be compared to the bumper cars at the county fair. But a well-designed, well-maintained parking lot helps people get in efficiently, find their way to a stall, walk safely to… Read More »