Roundabouts are the safer choice
Intersections can be the most dangerous part of roads for motorists, pedestrians and cyclists. Roundabouts reduce the number possible collision points in an intersection.
According to the Federal Highway Administration, areas with roundabouts have seen a reduction of collision rates by 36% and serious injuries from collisions by 83%. Pedestrians and cyclists greatly benefit from roundabouts due to decreased conflict points, wider sidewalks or bike lanes and slower vehicle speeds. A Kansas State University study shows that pedestrian collisions were reduced around 58% in roundabouts compared to other intersections.
Roundabouts are the most efficient and green option
Roundabouts are often more efficient and environmentally-friendly than traffic signals and stop signs. At a roundabout, drivers only have to stop if there is another vehicle in the roundabout, compared to a stop sign where drivers always have to stop. Reducing the need to stop and start at intersections cuts time spent idling by as much as 38%, leading to 68% less greenhouse gases emitted by motorists.
Roundabouts cost less
Roundabouts are also economical, with lower long-term costs than traffic signals. While the cost of constructing a roundabout is similar to a stop light, the long-term maintenance, electricity and repair costs of a roundabout are significantly lower. Roundabouts, due to their overall efficiency, also qualify more easily for many grants, which saves local taxpayers millions annually.