This article addresses the impact of turbo-roundabouts located in urban areas on pollutant
emissions using field measurements of vehicle activity data and road congestion levels. The …

The number of turboroundabouts constructed in Europe has grown steadily in the past
decade. Although there has been extensive work on the operational and environmental …

A “turboroundabout” is a variation of the conventional multilane roundabout in which spiral
road markings and raised lane dividers force drivers to follow a specific path according to …

Well-designed roundabouts improve capacity, safety performance and offer other benefits
such as air quality. In the last decades roundabouts have gained increased political …

This paper reports on research that explored how multilane roundabouts located on urban
corridors have affected traffic performance and pollutant emissions generated from vehicles …

This research quantifies the traffic and emission impacts of single lane roundabouts in urban
corridors, based on experimental measurements of traffic and using the “Vehicle Specific …

There is a widespread agreement in the scientific community that the transformation of a
conventional multi-lane roundabout into a turbo-roundabout results in a significant increase …

In recent years, numerous turbo-roundabouts have been built in many European countries.
To date, there are no turbo-roundabouts in Italy and even the regulations do not provide for …

Turbo-roundabouts represent an innovative scheme of modern roundabouts which provides
a spiraling traffic flow and requires drivers to choose their direction before entering the …

Since their introduction in the late 1990s, basic turbo roundabouts have made a great
success in several European countries. Researchers, however, have been unable to reach …